As part of the assessment of undiscovered oil and gas resources in Jurassic and Cretaceous strata of the U.S. Gulf Coast in 2010, the U.S. Geological Survey assessed carbonate rocks of the Fredericksburg and Washita groups and their equivalent units underlying onshore lands and State waters. One conventional assessment unit extending from south Texas to the Florida panhandle was defined: the Fredericksburg-Buda Carbonate Platform-Reef Gas and Oil assessment unit. Assessed strata range in age from Early Cretaceous Albian to Late Cretaceous Cenomanian. The assessment was based on a geologic model that incorporated the Upper Jurassic–Cretaceous–Tertiary Composite Total Petroleum System of the Gulf of Mexico Basin. The following factors were evaluated to define the assessment unit and estimate undiscovered oil and gas resources: potential source rocks, hydrocarbon migration, reservoir porosity and permeability, traps and seals, structural features, depositional framework, and potential for water washing of hydrocarbons near outcrop areas. Analysis of the production history of discovered reservoirs and well data within the assessment unit was also essential for estimating the numbers and sizes of undiscovered oil and gas reservoirs within the assessment unit. The downdip boundary of the assessment unit was drawn as an arbitrary line 10 miles downdip of the Lower Cretaceous shelf margin, to include potential reef-talus reservoirs, a facies described in the geologic model developed for the assessment. Updip boundaries of the assessment unit were drawn based on the updip extent of assessment unit carbonate reservoir rocks, basin margin fault zones, and (or) the presence of producing wells within the assessed interval. Using the U.S. Geological Survey methodology, mean undiscovered resources of 40 million barrels of oil, 622 billion cubic feet of gas, and 14 million barrels of natural gas liquids were estimated for the assessment unit.
","publisher":"Gulf Coast Association of Geological Societies","usgsCitation":"Swanson, S.M., Enomoto, C.B., Dennen, K., Valentine, B.J., and Lohr, C., 2013, Geologic model for the assessment of undiscovered hydrocarbons in Lower to Upper Cretaceous carbonate rocks of the Fredericksburg and Washita groups, U.S. Gulf Coast Region: Gulf Coast Association of Geological Societies Transactions, v. 63, p. 423-437.","productDescription":"15 p.","startPage":"423","endPage":"437","numberOfPages":"15","ipdsId":"IP-045922","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":384781,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":384780,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/gcags/data/063/063001/423_gcags630423.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","otherGeospatial":"U.S. Gulf Coast","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -102.9638671875,\n 25.46311452925943\n ],\n [\n -81.54052734375,\n 25.46311452925943\n ],\n [\n -81.54052734375,\n 36.914764288955936\n ],\n [\n -102.9638671875,\n 36.914764288955936\n ],\n [\n -102.9638671875,\n 25.46311452925943\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"63","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Swanson, Sharon M. 0000-0002-4235-1736 smswanson@usgs.gov","orcid":"https://orcid.org/0000-0002-4235-1736","contributorId":590,"corporation":false,"usgs":true,"family":"Swanson","given":"Sharon","email":"smswanson@usgs.gov","middleInitial":"M.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":813273,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Enomoto, Catherine B. 0000-0002-4119-1953 cenomoto@usgs.gov","orcid":"https://orcid.org/0000-0002-4119-1953","contributorId":2126,"corporation":false,"usgs":true,"family":"Enomoto","given":"Catherine","email":"cenomoto@usgs.gov","middleInitial":"B.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":813274,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dennen, Kristin O.","contributorId":209828,"corporation":false,"usgs":true,"family":"Dennen","given":"Kristin O.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":813275,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valentine, Brett J. 0000-0002-8678-2431 bvalentine@usgs.gov","orcid":"https://orcid.org/0000-0002-8678-2431","contributorId":3846,"corporation":false,"usgs":true,"family":"Valentine","given":"Brett","email":"bvalentine@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":813276,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lohr, Celeste D. 0000-0001-6287-9047 clohr@usgs.gov","orcid":"https://orcid.org/0000-0001-6287-9047","contributorId":3866,"corporation":false,"usgs":true,"family":"Lohr","given":"Celeste D.","email":"clohr@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":813277,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70074263,"text":"70074263 - 2013 - Historical methane hydrate project review","interactions":[],"lastModifiedDate":"2018-03-02T14:43:20","indexId":"70074263","displayToPublicDate":"2013-01-01T13:01:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"Historical methane hydrate project review","docAbstract":"In 1995, U.S. Geological Survey made the first systematic assessment of the volume of natural gas stored in the hydrate accumulations of the United States. That study, along with numerous other studies, has shown that the amount of gas stored as methane hydrates in the world greatly exceeds the volume of known conventional gas resources. However, gas hydrates represent both a scientific and technical challenge and much remains to be learned about their characteristics and occurrence in nature. Methane hydrate research in recent years has mostly focused on: (1) documenting the geologic parameters that control the occurrence and stability of gas hydrates in nature, (2) assessing the volume of natural gas stored within various gas hydrate accumulations, (3) analyzing the production response and characteristics of methane hydrates, (4) identifying and predicting natural and induced environmental and climate impacts of natural gas hydrates, and (5) analyzing the effects of methane hydrate on drilling safety.
Methane hydrates are naturally occurring crystalline substances composed of water and gas, in which a solid water-‐lattice holds gas molecules in a cage-‐like structure. The gas and water becomes a solid under specific temperature and pressure conditions within the Earth, called the hydrate stability zone. Other factors that control the presence of methane hydrate in nature include the source of the gas included within the hydrates, the physical and chemical controls on the migration of gas with a sedimentary basin containing methane hydrates, the availability of the water also included in the hydrate structure, and the presence of a suitable host sediment or “reservoir”. The geologic controls on the occurrence of gas hydrates have become collectively known as the “methane hydrate petroleum system”, which has become the focus of numerous hydrate research programs.
Recognizing the importance of methane hydrate research and the need for a coordinated effort, the U.S. Congress enacted Public Law 106-‐193, the Methane Hydrate Research and Development Act of 2000. This Act called for the Secretary of Energy to begin a methane hydrate research and development program in consultation with other U.S. federal agencies. At the same time a new methane hydrate research program had been launched in Japan by the Ministry of International Trade and Industry to develop plans for a methane hydrate exploratory drilling project in the Nankai Trough. Since this early start we have seen other countries including India, China, Canada, and the Republic of Korea establish large gas hydrate research and development programs. These national led efforts have also included the investment in a long list of important scientific research drilling expeditions and production test studies that have provided a wealth of information on the occurrence of methane hydrate in nature. The most notable expeditions and projects have including the following:
-‐Ocean Drilling Program Leg 164 (1995)
-‐Japan Nankai Trough Project (1999-‐2000)
-‐Ocean Drilling Program Leg 204 (2004)
-‐Japan Tokai-‐oki to Kumano-‐nada Project (2004)
-‐Gulf of Mexico JIP Leg I (2005)
-‐Integrated Ocean Drilling Program Expedition 311 (2005)
-‐Malaysia Gumusut-‐Kakap Project (2006)
-‐India NGHP Expedition 01 (2006)
-‐China GMGS Expedition 01 (2007)
-‐Republic of Korea UBGH Expedition 01 (2007)
-‐Gulf of Mexico JIP Leg II (2009)
-‐Republic of Korea UBGH Expedition 02 (2010)
-‐MH-‐21 Nankai Trough Pre-‐Production Expedition (2012-‐2013)
-‐Mallik Gas Hydrate Testing Projects (1998/2002/2007-‐2008)
-‐Alaska Mount Elbert Stratigraphic Test Well (2007)
-‐Alaska Iġnik Sikumi Methane Hydrate Production Test Well (2011-‐2012)
Research coring and seismic programs carried out by the Ocean Drilling Program (ODP) and Integrated Ocean Drilling Program (IODP), starting with the ODP Leg 164 drilling of the Blake Ridge in the Atlantic Ocean in 1995, have also contributed greatly to our understanding of the geologic controls on the formation, occurrence, and stability of gas hydrates in marine environments. For the most part methane hydrate research expeditions carried out by the ODP and IODP provided the foundation for our scientific understanding of gas hydrates. The methane hydrate research efforts under ODP-‐IODP have mostly dealt with the assessment of the geologic controls on the occurrence of gas hydrate, with a specific goal to study the role methane hydrates may play in the global carbon cycle.
Over the last 10 years, national led methane hydrate research programs, along with industry interest have led to the development and execution of major methane hydrate production field test programs. Two of the most important production field testing programs have been conducted at the Mallik site in the Mackenzie River Delta of Canada and in the Eileen methane hydrate accumulation on the North Slope of Alaska. Most recently we have also seen the completion of the world’s first marine methane hydrate production test in the Nankai Trough in the offshore of Japan. Industry interest in gas hydrates has also included important projects that have dealt with the assessment of geologic hazards associated with the presence of hydrates.
The scientific drilling and associated coring, logging, and borehole monitoring technologies developed in the long list of methane hydrate related field studies are one of the most important developments and contributions associated with methane hydrate research and development activities. Methane hydrate drilling has been conducted from advanced scientific drilling platforms like the JOIDES Resolution and the D/V Chikyu, which feature highly advanced integrated core laboratories and borehole logging capabilities. Hydrate research drilling has also included the use of a wide array of industry, geotechnical and multi-‐service ships. All of which have been effectively used to collect invaluable geologic and engineering data on the occurrence of methane hydrates throughout the world. Technologies designed specifically for the collection and analysis of undisturbed methane hydrate samples have included the development of a host of pressure core systems and associated specialty laboratory apparatus. The study and use of both wireline conveyed and logging-‐while-‐drilling technologies have also contributed greatly to our understanding of the in-‐situ nature of hydrate-‐bearing sediments. Recent developments in borehole instrumentation specifically designed to monitor changes associated with hydrates in nature through time or to evaluate the response of hydrate accumulations to production have also contributed greatly to our understanding of the complex nature and evolution of methane hydrate systems.
Our understanding of how methane hydrates occur and behave in nature is still growing and evolving – we do not yet know if methane hydrates can be economically produced, nor do we know fully the role of hydrates as an agent of climate change or as a geologic hazard. But it is known for certain that scientific drilling has contributed greatly to our understanding of hydrates in nature and will continue to be a critical source of the information to advance our understanding of methane hydrates.
","language":"English","publisher":"Consortium for Ocean Leadership","publisherLocation":"Washington D.C.","collaboration":"Report prepared for the U.S. Department of Energy - National Energy Technology Laboratory, by the Consortium for Ocean Leadership","usgsCitation":"Collett, T., Bahk, J., Frye, M., Goldberg, D., Husebo, J., Koh, C., Malone, M., Shipp, C., and Torres, M., 2013, Historical methane hydrate project review, Part 1: 110 p.; Part 2: 32 p.; Part 3: 42 p.","productDescription":"Part 1: 110 p.; Part 2: 32 p.; Part 3: 42 p.","numberOfPages":"187","ipdsId":"IP-045213","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":287820,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":287819,"type":{"id":7,"text":"Companion Files"},"url":"https://oceanleadership.org/wp-content/uploads/COL_DOE_GH_Review-part3_Final.pdf"},{"id":281602,"type":{"id":15,"text":"Index Page"},"url":"https://oceanleadership.org/scientific-programs/methane-hydrate-field-program/"},{"id":287817,"type":{"id":11,"text":"Document"},"url":"https://oceanleadership.org/wp-content/uploads/COL_DOE_GH_Review-part1_Final.pdf"},{"id":287818,"type":{"id":7,"text":"Companion Files"},"url":"https://oceanleadership.org/wp-content/uploads/COL_DOE_GH_Review-part2_Final.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53885700e4b0318b93124ab4","contributors":{"authors":[{"text":"Collett, Timothy 0000-0002-7598-4708","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":97008,"corporation":false,"usgs":true,"family":"Collett","given":"Timothy","affiliations":[],"preferred":false,"id":489454,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bahk, Jang-Jun","contributorId":12781,"corporation":false,"usgs":true,"family":"Bahk","given":"Jang-Jun","email":"","affiliations":[],"preferred":false,"id":489446,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Frye, Matt","contributorId":60543,"corporation":false,"usgs":true,"family":"Frye","given":"Matt","email":"","affiliations":[],"preferred":false,"id":489451,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goldberg, Dave","contributorId":57376,"corporation":false,"usgs":true,"family":"Goldberg","given":"Dave","affiliations":[],"preferred":false,"id":489450,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Husebo, Jarle","contributorId":77851,"corporation":false,"usgs":true,"family":"Husebo","given":"Jarle","email":"","affiliations":[],"preferred":false,"id":489452,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Koh, Carolyn","contributorId":42883,"corporation":false,"usgs":true,"family":"Koh","given":"Carolyn","email":"","affiliations":[],"preferred":false,"id":489449,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Malone, Mitch","contributorId":34437,"corporation":false,"usgs":true,"family":"Malone","given":"Mitch","email":"","affiliations":[],"preferred":false,"id":489447,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Shipp, Craig","contributorId":40522,"corporation":false,"usgs":true,"family":"Shipp","given":"Craig","email":"","affiliations":[],"preferred":false,"id":489448,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Torres, Marta","contributorId":86477,"corporation":false,"usgs":true,"family":"Torres","given":"Marta","affiliations":[],"preferred":false,"id":489453,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70123888,"text":"70123888 - 2013 - Maintaining and restoring sustainable ecosystems in southern Nevada","interactions":[],"lastModifiedDate":"2022-12-30T14:43:31.737296","indexId":"70123888","displayToPublicDate":"2013-01-01T12:58:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":32,"text":"General Technical Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"RMRS-GTR-303","chapter":"7","title":"Maintaining and restoring sustainable ecosystems in southern Nevada","docAbstract":"Managers in southern Nevada are challenge with determining appropriate goals and objectives and developing viable approaches for maintaining and restoring sustainable ecosystems in a time of rapid socio-ecological and environmental change. Sustainable or \"healthy\" ecosystems supply clean air, water and habitat for a diverse array of plants and animals. As described in Chapter 1, sustainable ecosystems retain characteristic processes like hydrological flux and storage, geomorphic processes, biogeochemical cycling and storage, biological activity and productivity, and population regeneration and reproduction over the normal cycle of disturbance events (modified from Chapin and others 1996 and Christensen and others 1996). Ecological restoration of stressed or disturbed ecosystems in an integral part of managing for sustainable ecosystems. The Society of Ecological Restoration International (SERI) defines ecological restoration as the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed (SERI 2004).
\nMany of the southern Nevada's ecosystems are being subjected to anthropogenic stressors that span global, regional, and local scales (Chapter 2)., and are crossing ecological thresholds to new alternative states (Chapter 4 and Chapter 5). These alternative states often represent novel communities with disturbance regimes that differ significantly from historic conditions. Past management and restoration goals often focused on returning ecosystems to pre-disturbance conditions (Harris and others 2006). This approach assumes stable or equilibrium conditions and ignores changes in ecosystems processes due to land uses, increases in CO2 concentrations, and climate change. A more realistic approach is to base management and restoration goals on the current potential of an ecosystem to support a given set of ecological conditions, and on the likelihood of future change due to warming climate (Harris and others 2006). This approach requires understanding ecosystem resilience to anthropogenic disturbance and climate change, the alternative states that exist for ecosystems, and the factors that result in threshold crossing (Bestelmeyer and others 2009; Hobbs and Harris 2001; Stingham and others 2003; Whisemnant 1999). It also requires the ability to predict how climate is likely to influence ecosystems in the future (Harris and others 2006).
\nThis chapter addresses the restoration aspects of Sub-goal 1.3 in the SNAP Science Research Strategy which is to restore and sustain proper function of southern Nevada's watersheds and landscapes (able 1.3; Turner and others 2009). The effects of global, regional and local stresses on southern Nevada ecosystems are presented in Chapter 2. Here, we discuss appropriate objectives and develop guidelines for maintaining and restoring southern Nevada ecosystems. We then discuss the differences in ecological resilience to stress and disturbance and resistance to invasive species in southern Nevada ecosystems and describe restoration and management approaches for the different ecosystem types. We conclude with knowledge gaps and management implications.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Southern Nevada Agency Partnership science and research synthesis: Science to support land management in southern Nevada (General Technical Report RMRS-GTR-303)","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"U.S. Forest Service","publisherLocation":"Fort Collins, CO","usgsCitation":"Chambers, J., Pendleton, B.K., Sada, D.W., Ostoja, S.M., and Brooks, M.L., 2013, Maintaining and restoring sustainable ecosystems in southern Nevada: General Technical Report RMRS-GTR-303, 30 p.","productDescription":"30 p.","startPage":"125","endPage":"154","numberOfPages":"30","ipdsId":"IP-037932","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":294532,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":294531,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.fs.fed.us/rm/pubs/rmrs_gtr303.html"}],"country":"United States","state":"Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -114.62994356826636,\n 35.02392827573823\n ],\n [\n -114.71108092890972,\n 36.05434128183754\n ],\n [\n -114.1610398819929,\n 35.96903144947467\n ],\n [\n -113.99956682074821,\n 39.38359318014548\n ],\n [\n -120.06431672841825,\n 39.64524306073176\n ],\n [\n -120.09127846963423,\n 38.90168971729281\n ],\n [\n -114.62994356826636,\n 35.02392827573823\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54252ec0e4b0e641df8a7085","contributors":{"authors":[{"text":"Chambers, Jeanne C.","contributorId":75889,"corporation":false,"usgs":false,"family":"Chambers","given":"Jeanne C.","affiliations":[],"preferred":false,"id":500456,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pendleton, Burton K.","contributorId":107187,"corporation":false,"usgs":true,"family":"Pendleton","given":"Burton","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":500457,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sada, Donald W.","contributorId":20673,"corporation":false,"usgs":true,"family":"Sada","given":"Donald","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":500455,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ostoja, Steven M. sostoja@usgs.gov","contributorId":3039,"corporation":false,"usgs":true,"family":"Ostoja","given":"Steven","email":"sostoja@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":33665,"text":"USDA California Climate Hub, UC Davis","active":true,"usgs":false}],"preferred":false,"id":500454,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brooks, Matthew L. 0000-0002-3518-6787 mlbrooks@usgs.gov","orcid":"https://orcid.org/0000-0002-3518-6787","contributorId":393,"corporation":false,"usgs":true,"family":"Brooks","given":"Matthew","email":"mlbrooks@usgs.gov","middleInitial":"L.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":500453,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70048441,"text":"70048441 - 2013 - Modeling groundwater flow and quality","interactions":[],"lastModifiedDate":"2013-11-01T13:04:52","indexId":"70048441","displayToPublicDate":"2013-01-01T12:57:00","publicationYear":"2013","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Modeling groundwater flow and quality","docAbstract":"In most areas, rocks in the subsurface are saturated with water at relatively shallow depths. The top of the saturated zone—the water table—typically occurs anywhere from just below land surface to hundreds of feet below the land surface. Groundwater generally fills all pore spaces below the water table and is part of a continuous dynamic flow system, in which the fluid is moving at velocities ranging from feet per millennia to feet per day (Fig. 33.1). While the water is in close contact with the surfaces of various minerals in the rock material, geochemical interactions between the water and the rock can affect the chemical quality of the water, including pH, dissolved solids composition, and trace-elements content. Thus, flowing groundwater is a major mechanism for the transport of chemicals from buried rocks to the accessible environment, as well as a major pathway from rocks to human exposure and consumption. Because the mineral composition of rocks is highly variable, as is the solubility of various minerals, the human-health effects of groundwater consumption will be highly variable.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Essentials of medical geology","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Springer","publisherLocation":"Dordrecht; New York","doi":"10.1007/978-94-007-4375-5_33","usgsCitation":"Konikow, L.F., and Glynn, P.D., 2013, Modeling groundwater flow and quality, chap. of Essentials of medical geology, p. 727-753, https://doi.org/10.1007/978-94-007-4375-5_33.","productDescription":"27 p.","startPage":"727","endPage":"753","numberOfPages":"27","ipdsId":"IP-037784","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":278639,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":278138,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/978-94-007-4375-5_33"},{"id":278139,"type":{"id":15,"text":"Index Page"},"url":"https://www.springer.com/earth+sciences+and+geography/geology/book/978-94-007-4374-8"}],"edition":"2","noUsgsAuthors":false,"publicationDate":"2012-12-01","publicationStatus":"PW","scienceBaseUri":"5274cd7ee4b089748f072435","contributors":{"editors":[{"text":"Selinus, Olle","contributorId":111910,"corporation":false,"usgs":true,"family":"Selinus","given":"Olle","email":"","affiliations":[],"preferred":false,"id":509615,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":484658,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glynn, Pierre D. 0000-0001-8804-7003 pglynn@usgs.gov","orcid":"https://orcid.org/0000-0001-8804-7003","contributorId":2141,"corporation":false,"usgs":true,"family":"Glynn","given":"Pierre","email":"pglynn@usgs.gov","middleInitial":"D.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":484659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70057589,"text":"70057589 - 2013 - Adaptive harvest management for the Svalbard population of pink-footed geese: cooperator report","interactions":[],"lastModifiedDate":"2014-05-28T13:04:46","indexId":"70057589","displayToPublicDate":"2013-01-01T12:57:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Adaptive harvest management for the Svalbard population of pink-footed geese: cooperator report","docAbstract":"This document describes progress to date on the development of a harvest‐management strategy\nfor maintaining pink‐footed goose abundance near their target level by providing for sustainable\nharvests in Norway and Denmark. Many goose populations in western Europe have increased\ndramatically in recent decades. The Svalbard population of pink‐footed geese (Anser\nbrachyrhynchus) is a good example, increasing from about 10 thousand individuals in the early\n1960’s to roughly 80 thousand today. Although these geese are a highly valued resource, the\ngrowing numbers of geese are causing agricultural conflicts in wintering and staging areas. The\nAfrican‐Eurasian Waterbird Agreement (AEWA; http://www.unep‐aewa.org/) calls for means to\nmanage populations which cause conflicts with certain human economic activities.
\nWe compiled relevant demographic and weather data and specified an annual‐cycle model for pink-footed\ngeese that reconciles the different dates of monitoring activities and the timing of harvest-management\ndecisions. We then developed dynamic models for survival and reproductive\nprocesses and parameterized them using available data. By combining varying hypotheses about\nsurvival and reproduction, we developed a suite of nine models that represent a wide range of\npossibilities concerning the extent to which demographic rates are density dependent or\nindependent, and the extent to which spring temperatures are important. These nine models\nvaried significantly in their predictions of the harvest required to stabilize current population size,\nranging from a low of about 500 to a high of about 17 thousand. For comparison, the harvest in\nNorway and Denmark was about 11 thousand in 2011 and the population increased from 70 to 80\nthousand.
\nWe relied on the passive form of adaptive management in formulating a harvest strategy. In\npassive adaptive management, alternative population models and their associated weights of\nevidence are explicitly considered in the development of an optimal harvest strategy. Unlike active\nadaptive management, however, there is no explicit consideration of how harvest management\nactions could reduce uncertainty as to the most appropriate model of population dynamics. In\noptimizing a harvest strategy, we assumed equal probabilities for all nine models and assumed\nrelatively course control over harvest. We used a management objective that seeks to maximize\nsustainable harvest, but avoids harvest decisions that are expected to result in a subsequent\npopulation size different than the population goal of 60 thousand. Optimal harvest strategies were\ncalculated using stochastic dynamic programming, and Monte Carlo simulations were used to\ninvestigate expected strategy performance.
\nThe optimal passive adaptive‐management strategy is expected to maintain mean population size\nnear 60 thousand, regardless of the most appropriate model. However, mean harvest rates and\nharvests varied substantially depending on the most appropriate model of population dynamics.\nWith an average number of days above freezing in May in Svalbard, optimal harvest rates (i.e., the\nproportion of the population to be harvested in autumn) increase rapidly once there are more than\nabout 50 thousand birds in the population. Generally, optimal harvests were on the order of 10 –\n20 thousand for population sizes > 60 thousand, and 0 – 5 thousand for population sizes < 60\nthousand. For the observations of young of 15.4 thousand and adults of 54.6 thousand in autumn\n2010, and 10 days above freezing in May 2011 (a relatively warm spring compared to the average of about 7), the optimal harvest rate in autumn of 2011 would have been 0.16, or a harvest of about\n14 thousand. Based on the optimal strategy, hunting‐season closures would be required as the\nnumber of adults in the autumn population falls below about 52 thousand, regardless of the\nnumber of young in the population. As the number of adults and young decrease, the number of\nwarm days in May required to keep the hunting season open increases. We also investigated the\nability of the optimal strategy to stabilize the population at around 60 thousand birds, assuming\nvarying values of the maximum harvest rate that could be implemented. Harvest strategies that\ncontained a maximum harvest rate of 0.16 (equivalent to a harvest of about 17 thousand) were\neffective at stabilizing the population at 60 thousand within 4‐5 years, regardless of climate\nscenario. Harvest strategies with a maximum harvest rate of 0.12 (harvest ≈ 13 thousand) were\nalso able to stabilize the population near 60 thousand, although it took more time. Harvest\nstrategies with a maximum harvest rate of 0.08 (harvest ≈ 8 thousand) were unsuccessful at\nstabilizing the population at 60 thousand.
\nContinued monitoring of the pink‐footed goose population on an annual basis is critical to an\ninformed harvest management strategy. At a minimum, the ground census in November should be\ncontinued to determine population size and proportion of young. Continued estimates of harvest\nfrom Norway and Denmark are also necessary to help judge the credibility of the alternative\npopulation models. However, an adaptive management process that relies on periodic updating of\nmodel weights will depend on acquiring either estimates of the realized harvest rate of adults or the\nage composition of the harvest. We also recommend that a census conducted during spring\nmigration be operationalized, and that estimates of survival based on mark‐recapture data be\nupdated. Finally, the International Working Group has expressed a desire to adopt a three‐year\ncycle of decision making related to the regulation of pink‐footed goose harvests. The idea is that\nonce a target harvest level is adopted, it would remain in place for three years, after which time\npopulation status would be assessed and a potentially new management action chosen. We have\ndeveloped a preliminary framework to implement a three‐year cycle using stochastic dynamic\nprogramming, and we hope to have it fully operational later this year . We note, however, that\napplication of this 3‐year framework will still require annual resource monitoring and assessments\nto facilitate learning, and to allow managers the opportunity to respond to any unforeseen change\nin resource conditions.
","language":"English","publisher":"AEWA","collaboration":"Progress summary prepared for the AEWA Svalbard Pink Footed Goose International Working Group","usgsCitation":"Johnson, F.A., Jensen, G., and Madsen, J., 2013, Adaptive harvest management for the Svalbard population of pink-footed geese: cooperator report, 48 p.","productDescription":"48 p.","numberOfPages":"48","ipdsId":"IP-045931","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":287675,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":287674,"type":{"id":11,"text":"Document"},"url":"https://pinkfootedgoose.aewa.info/sites/default/files/article_attachments/AHM%20Cooperator%20Report%201%20(1Feb2013)%20FINAL.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53870561e4b0aa26cd7b537e","contributors":{"authors":[{"text":"Johnson, Fred A. 0000-0002-5854-3695 fjohnson@usgs.gov","orcid":"https://orcid.org/0000-0002-5854-3695","contributorId":2773,"corporation":false,"usgs":true,"family":"Johnson","given":"Fred","email":"fjohnson@usgs.gov","middleInitial":"A.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":486824,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jensen, Gitte H.","contributorId":74671,"corporation":false,"usgs":true,"family":"Jensen","given":"Gitte H.","affiliations":[],"preferred":false,"id":486826,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Madsen, Jesper","contributorId":9950,"corporation":false,"usgs":true,"family":"Madsen","given":"Jesper","affiliations":[],"preferred":false,"id":486825,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70046839,"text":"70046839 - 2013 - Export of dissolved organic carbon from the Penobscot River basin in north-central Maine","interactions":[],"lastModifiedDate":"2022-11-22T12:04:50.712023","indexId":"70046839","displayToPublicDate":"2013-01-01T12:54:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Export of dissolved organic carbon from the Penobscot River basin in north-central Maine","docAbstract":"Dissolved organic carbon (DOC) flux from the Penobscot River and its major tributaries in Maine was determined using continuous discharge measurements, discrete water sampling, and the LOADEST regression software. The average daily flux during 2004–2007 was 71 kg C ha−1 yr−1 (392 Mt C d−1), an amount larger than measured in most northern temperate and boreal rivers. Distinct seasonal variation was observed in the relation between concentration and discharge (C–Q). During June through December (summer/fall), there was a relatively steep positive C–Q relation where concentration increased by a factor of 2–3 over the approximately 20-fold range of observed stream discharge for the Penobscot River near Eddington, Maine. In contrast, during January through May (winter/spring), DOC concentration did not increase with increasing discharge. In addition, we observed a major shift in the C–Q between 2004–2005 and 2006–2007, apparently resulting from unprecedented rainfall, runoff, and soil flushing beginning in late fall 2005. The relative contribution to the total Penobscot River basin DOC flux from each tributary varied dramatically by season, reflecting the role of large regulated reservoirs in certain basins. DOC concentration and flux per unit watershed area were highest in tributaries containing the largest areas in palustrine wetlands. Tributary DOC concentration and flux was positively correlated to percentage wetland area. Climatic or environmental changes that influence the magnitude or timing of river discharge or the abundance of wetlands will likely affect the export of DOC to the near-coastal ocean.","language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2012.10.039","usgsCitation":"Huntington, T.G., and Aiken, G.R., 2013, Export of dissolved organic carbon from the Penobscot River basin in north-central Maine: Journal of Hydrology, v. 476, p. 244-256, https://doi.org/10.1016/j.jhydrol.2012.10.039.","productDescription":"13 p.","startPage":"244","endPage":"256","ipdsId":"IP-017251","costCenters":[{"id":371,"text":"Maine Water Science Center","active":true,"usgs":true}],"links":[{"id":274983,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":274982,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2012.10.039"}],"country":"United States","state":"Maine","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -70.54764999904074,\n 46.31845656074887\n ],\n [\n -70.54764999904074,\n 44.56645421087305\n ],\n [\n -67.18174929040322,\n 44.56645421087305\n ],\n [\n -67.18174929040322,\n 46.31845656074887\n ],\n [\n -70.54764999904074,\n 46.31845656074887\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"476","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51e519eae4b069f8d27ccaed","contributors":{"authors":[{"text":"Huntington, Thomas G. 0000-0002-9427-3530 thunting@usgs.gov","orcid":"https://orcid.org/0000-0002-9427-3530","contributorId":1884,"corporation":false,"usgs":true,"family":"Huntington","given":"Thomas","email":"thunting@usgs.gov","middleInitial":"G.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":371,"text":"Maine Water Science Center","active":true,"usgs":true}],"preferred":true,"id":480436,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":480435,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70093267,"text":"70093267 - 2013 - Potential effects of climate change on inland glacial lakes and implications for lake-dependent biota in Wisconsin: final report April 2013","interactions":[],"lastModifiedDate":"2014-04-11T12:54:52","indexId":"70093267","displayToPublicDate":"2013-01-01T12:49:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"title":"Potential effects of climate change on inland glacial lakes and implications for lake-dependent biota in Wisconsin: final report April 2013","docAbstract":"The economic vitality and quality of life of many northern Wisconsin communities is closely \nassociated with the ecological condition of the abundant water resources in the region. Climate change \nmodels predict warmer temperatures, changes to precipitation patterns, and increased evapotranspiration in \nthe Great Lakes region. Recently (1950-2006), many regions of Wisconsin have experienced warming, and \nprecipitation has generally increased except in far northern Wisconsin. Modeling conducted by the \nUniversity of Wisconsin Nelson Environmental Institute Center for Climate Research predicts an increase \nin annual temperature by the middle of the 21st\n century of approximately 6°\nF statewide, and an increase in \nprecipitation of 1”–2”. However, summer precipitation in the northern part of the state is expected to be \nless and winter precipitation will be greater. By the end of the 21st century, the magnitude of changes in \ntemperature and precipitation are expected to intensify. \nSuch climatic changes have altered, and would further alter hydrological, chemical, and physical \nproperties of inland lakes. Lake-dependent wildlife sensitive to changes in water quality, are particularly \nsusceptible to lake quality-associated habitat changes and are likely to suffer restrictions to current breeding \ndistributions under some climate change scenarios. We have selected the common loon (Gavia immer) to \nserve as a sentinel lake-dependent piscivorous species to be used in the development of a template for \nlinking primary lake-dependent biota endpoints (e.g., decline in productivity and/or breeding range \ncontraction) to important lake quality indicators. In the current project, we evaluate how changes in \nfreshwater habitat quality (specifically lake clarity) may impact common loon lake occupancy in Wisconsin \nunder detailed climate-change scenarios. In addition, we employ simple land-use/land cover and habitat \nscenarios to illustrate the potential interaction of climate and land-use/land cover effects. The methods \nemployed here provide a template for studies where integration of physical and biotic models is used to \nproject future conditions under various climate and land use change scenarios. Findings presented here \nproject the future conditions of lakes and loons within an important watershed in northern Wisconsin – of \nimportance to water resource managers and state citizens alike.","language":"English","publisher":"Focus on Energy","collaboration":"Environmental and Economic Research and Development Program","usgsCitation":"Meyer, M., Walker, J.F., Kenow, K.P., Rasmussen, P.W., Garrison, P.J., Hanson, P.C., and Hunt, R.J., 2013, Potential effects of climate change on inland glacial lakes and implications for lake-dependent biota in Wisconsin: final report April 2013, x, 166 p.","productDescription":"x, 166 p.","numberOfPages":"176","ipdsId":"IP-038873","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":286291,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92.8894,42.4919 ], [ -92.8894,47.0807 ], [ -86.764,47.0807 ], [ -86.764,42.4919 ], [ -92.8894,42.4919 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"535594f7e4b0120853e8c10d","contributors":{"authors":[{"text":"Meyer, Michael W.","contributorId":38943,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael W.","affiliations":[],"preferred":false,"id":490005,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walker, John F. jfwalker@usgs.gov","contributorId":1081,"corporation":false,"usgs":true,"family":"Walker","given":"John","email":"jfwalker@usgs.gov","middleInitial":"F.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":490000,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kenow, Kevin P. 0000-0002-3062-5197 kkenow@usgs.gov","orcid":"https://orcid.org/0000-0002-3062-5197","contributorId":3339,"corporation":false,"usgs":true,"family":"Kenow","given":"Kevin","email":"kkenow@usgs.gov","middleInitial":"P.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":490002,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rasmussen, Paul W.","contributorId":17753,"corporation":false,"usgs":true,"family":"Rasmussen","given":"Paul","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":490003,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Garrison, Paul J.","contributorId":73193,"corporation":false,"usgs":true,"family":"Garrison","given":"Paul","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":490006,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hanson, Paul C.","contributorId":35634,"corporation":false,"usgs":false,"family":"Hanson","given":"Paul","email":"","middleInitial":"C.","affiliations":[{"id":12951,"text":"Center for Limnology, University of Wisconsin Madison","active":true,"usgs":false}],"preferred":false,"id":490004,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hunt, Randall J. 0000-0001-6465-9304 rjhunt@usgs.gov","orcid":"https://orcid.org/0000-0001-6465-9304","contributorId":1129,"corporation":false,"usgs":true,"family":"Hunt","given":"Randall","email":"rjhunt@usgs.gov","middleInitial":"J.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":490001,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70148662,"text":"70148662 - 2013 - Spatial extent and dynamics of dam impacts on tropical island freshwater fish assemblages","interactions":[],"lastModifiedDate":"2015-06-19T11:48:05","indexId":"70148662","displayToPublicDate":"2013-01-01T12:45:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":997,"text":"BioScience","active":true,"publicationSubtype":{"id":10}},"title":"Spatial extent and dynamics of dam impacts on tropical island freshwater fish assemblages","docAbstract":"Habitat connectivity is vital to the persistence of migratory fishes. Native tropical island stream fish assemblages composed of diadromous species require intact corridors between ocean and riverine habitats. High dams block fish migration, but low-head artificial barriers are more widespread and are rarely assessed for impacts. Among all 46 drainages in Puerto Rico, we identified and surveyed 335 artificial barriers that hinder fish migration to 74.5% of the upstream habitat. We also surveyed occupancy of native diadromous fishes (Anguillidae, Eleotridae, Gobiidae, and Mugilidae) in 118 river reaches. Occupancy models demonstrated that barriers 2 meters (m) high restricted nongoby fish migration and extirpated those fish upstream of 4-m barriers. Gobies are adapted to climbing and are restricted by 12-m barriers and extirpated upstream of 32-m barriers. Our findings quantitatively illustrate the extensive impact of low-head structures on island stream fauna and provide guidance for natural resource management, habitat restoration, and water development strategies.
","language":"English","publisher":"American Institute of Biological Sciences","publisherLocation":"Washington, D.C.","doi":"10.1525/bio.2013.63.3.6","collaboration":"Puerto Rico Department of Natural and Environmental Resources through Federal Aid in Sport Fish Restoration; US Fish and Wildlife Service, Division of Fish and Wildlife Management, Branch of Habitat Restoration; North Carolina State University; North Carolina Wildlife Resources Commission; US Geological Survey; US Fish and Wildlife Service; Wildlife Management Institute","usgsCitation":"Cooney, P.B., and Kwak, T.J., 2013, Spatial extent and dynamics of dam impacts on tropical island freshwater fish assemblages: BioScience, v. 63, no. 3, p. 176-190, https://doi.org/10.1525/bio.2013.63.3.6.","productDescription":"15 p.","startPage":"176","endPage":"190","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-038818","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":473997,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1525/bio.2013.63.3.6","text":"Publisher Index Page"},{"id":301369,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"63","issue":"3","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55853d5be4b023124e8f5b49","contributors":{"authors":[{"text":"Cooney, Patrick B.","contributorId":141249,"corporation":false,"usgs":false,"family":"Cooney","given":"Patrick","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":549047,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kwak, Thomas J. 0000-0002-0616-137X tkwak@usgs.gov","orcid":"https://orcid.org/0000-0002-0616-137X","contributorId":834,"corporation":false,"usgs":true,"family":"Kwak","given":"Thomas","email":"tkwak@usgs.gov","middleInitial":"J.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":549048,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70118570,"text":"70118570 - 2013 - 2D IR spectra of cyanide in water investigated by molecular dynamics simulations","interactions":[],"lastModifiedDate":"2014-07-29T12:45:03","indexId":"70118570","displayToPublicDate":"2013-01-01T12:42:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2207,"text":"Journal of Chemical Physics","active":true,"publicationSubtype":{"id":10}},"title":"2D IR spectra of cyanide in water investigated by molecular dynamics simulations","docAbstract":"Using classical molecular dynamics simulations, the 2D infrared (IR) spectroscopy of CN− solvated in D2O is investigated. Depending on the force field parametrizations, most of which are based on multipolar interactions for the CN− molecule, the frequency-frequency correlation function and observables computed from it differ. Most notably, models based on multipoles for CN− and TIP3P for water yield quantitatively correct results when compared with experiments. Furthermore, the recent finding that T 1 times are sensitive to the van der Waals ranges on the CN− is confirmed in the present study. For the linear IR spectrum, the best model reproduces the full widths at half maximum almost quantitatively (13.0 cm−1 vs. 14.9 cm−1) if the rotational contribution to the linewidth is included. Without the rotational contribution, the lines are too narrow by about a factor of two, which agrees with Raman and IR experiments. The computed and experimental tilt angles (or nodal slopes) α as a function of the 2D IR waiting time compare favorably with the measured ones and the frequency fluctuation correlation function is invariably found to contain three time scales: a sub-ps, 1 ps, and one on the 10-ps time scale. These time scales are discussed in terms of the structural dynamics of the surrounding solvent and it is found that the longest time scale (≈10 ps) most likely corresponds to solvent exchange between the first and second solvation shell, in agreement with interpretations from nuclear magnetic resonance measurements.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Chemical Physics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Institute of Physics","publisherLocation":"New York, NY","doi":"10.1063/1.4815969","usgsCitation":"Lee, M.W., Carr, J.K., Gollner, M., Hamm, P., and Meuwly, M., 2013, 2D IR spectra of cyanide in water investigated by molecular dynamics simulations: Journal of Chemical Physics, v. 139, no. 5, p. 1-12, https://doi.org/10.1063/1.4815969.","productDescription":"13 p.","startPage":"1","endPage":"12","numberOfPages":"13","costCenters":[],"links":[{"id":473998,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1063/1.4815969","text":"External Repository"},{"id":291309,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291308,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1063/1.4815969"}],"volume":"139","issue":"5","noUsgsAuthors":false,"publicationDate":"2013-08-02","publicationStatus":"PW","scienceBaseUri":"57f7f37ee4b0bc0bec0a09dd","contributors":{"authors":[{"text":"Lee, Myung Won","contributorId":58950,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","email":"","middleInitial":"Won","affiliations":[],"preferred":false,"id":497058,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, Joshua K.","contributorId":99904,"corporation":false,"usgs":true,"family":"Carr","given":"Joshua","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":497061,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gollner, Michael","contributorId":96200,"corporation":false,"usgs":true,"family":"Gollner","given":"Michael","email":"","affiliations":[],"preferred":false,"id":497060,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hamm, Peter","contributorId":17161,"corporation":false,"usgs":true,"family":"Hamm","given":"Peter","email":"","affiliations":[],"preferred":false,"id":497057,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meuwly, Markus","contributorId":79408,"corporation":false,"usgs":true,"family":"Meuwly","given":"Markus","email":"","affiliations":[],"preferred":false,"id":497059,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70148176,"text":"70148176 - 2013 - Effects of hydrologic connectivity on aquatic macroinvertebrate assemblages in different marsh types","interactions":[],"lastModifiedDate":"2015-05-26T11:12:23","indexId":"70148176","displayToPublicDate":"2013-01-01T12:15:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":860,"text":"Aquatic Biology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of hydrologic connectivity on aquatic macroinvertebrate assemblages in different marsh types","docAbstract":"Hydrologic connectivity can be an important driver of aquatic macroinvertebrate assemblages. Its effects on aquatic macroinvertebrate assemblages in coastal marshes, however, are relatively poorly studied. We evaluated the effects of lateral hydrologic connectivity (permanently connected ponds: PCPs; temporary connected ponds: TCPs), and other environmental variables on aquatic macroinvertebrate assemblages and functional feeding groups (FFGs) in freshwater, brackish, and saline marshes in Louisiana, USA. We hypothesized that (1) aquatic macroinvertebrate assemblages in PCPs would have higher assemblage metric values (density, biomass, Shannon-Wiener diversity) than TCPs and (2) the density and proportional abundance of certain FFGs (i.e. scrapers, shredders, and collectors) would be greater in freshwater marsh than brackish and saline marshes. The data in our study only partially supported our first hypothesis: while freshwater marsh PCPs had higher density and biomass than TCPs, assemblage metric values in saline TCPs were greater than saline PCPs. In freshwater TCPs, long duration of isolation limited access of macroinvertebrates from adjacent water bodies, which may have reduced assemblage metric values. However, the relatively short duration of isolation in saline TCPs provided more stable or similar habitat conditions, facilitating higher assemblage metric values. As predicted by our second hypothesis, freshwater PCPs and TCPs supported a greater density of scrapers, shredders, and collectors than brackish and saline ponds. Aquatic macroinvertebrate assemblages seem to be structured by individual taxa responses to salinity as well as pond habitat attributes.
","language":"English","publisher":"Inter-Research","publisherLocation":"Oldendorf","doi":"10.3354/ab00499","collaboration":"Louisiana Department of Wildlife and Fisheries; US Fish and Wildlife Service; International Crane Foundation","usgsCitation":"Kang, S., and King, S.L., 2013, Effects of hydrologic connectivity on aquatic macroinvertebrate assemblages in different marsh types: Aquatic Biology, v. 18, no. 2, p. 149-160, https://doi.org/10.3354/ab00499.","productDescription":"12 p.","startPage":"149","endPage":"160","numberOfPages":"12","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-043694","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":474001,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/ab00499","text":"Publisher Index Page"},{"id":300784,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"2","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55659941e4b0d9246a9eb61d","contributors":{"authors":[{"text":"Kang, Sung-Ryong","contributorId":140927,"corporation":false,"usgs":false,"family":"Kang","given":"Sung-Ryong","email":"","affiliations":[],"preferred":false,"id":547608,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"King, Sammy L. 0000-0002-5364-6361 sking@usgs.gov","orcid":"https://orcid.org/0000-0002-5364-6361","contributorId":557,"corporation":false,"usgs":true,"family":"King","given":"Sammy","email":"sking@usgs.gov","middleInitial":"L.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":547534,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70150443,"text":"70150443 - 2013 - Impacts of golden alga Prymnesium parvum on fish populations in reservoirs of the upper Colorado River and Brazos River basins, Texas","interactions":[],"lastModifiedDate":"2015-06-26T10:50:05","indexId":"70150443","displayToPublicDate":"2013-01-01T12:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Impacts of golden alga Prymnesium parvum on fish populations in reservoirs of the upper Colorado River and Brazos River basins, Texas","docAbstract":"Several reservoirs in the upper Colorado River and Brazos River basins in Texas have experienced toxic blooms of golden alga Prymnesium parvum and associated fish kills since 2001. There is a paucity of information, however, regarding the population-level effects of such kills in large reservoirs, species-specific resistance to or recovery from kills, or potential differences in the patterns of impacts among basins. We used multiple before-after, control-impact analysis to determine whether repeated golden alga blooms have led to declines in the relative abundance and size structure of fish populations. Sustained declines were noted for 9 of 12 fish species surveyed in the upper Colorado River, whereas only one of eight species was impacted by golden alga in the Brazos River. In the upper Colorado River, White Bass Morone chrysops, White Crappie Pomoxis annularis, Largemouth Bass Micropterus salmoides, Bluegill Lepomis macrochirus, River Carpsucker Carpiodes carpio, Freshwater Drum Aplodinotus grunniens, Channel Catfish Ictalurus punctatus, Flathead Catfish Pylodictis olivaris, and Blue Catfish I. furcatus exhibited sustained declines in relative abundance, size structure, or both; Gizzard Shad Dorosoma cepedianum, Longnose Gar Lepisosteus osseus, and Common Carp Cyprinus carpio did not exhibit those declines. In the Brazos River, only the relative abundance of Blue Catfish was impacted. Overall, toxic golden alga blooms can negatively impact fish populations over the long-term, but the patterns of impact can vary considerably among river basins and species. In the Brazos River, populations of most fish species appear to be healthy, suggesting a positive angling outlook for this basin. In the upper Colorado River, fish populations have been severely impacted, and angling opportunities have been reduced. Basin-specific management plans aimed at improving water quality and quantity will likely reduce bloom intensity and allow recovery of fish populations to the abundances and size structures present before golden alga. Received August 26, 2011; accepted November 25, 2012
","language":"English","publisher":"American Fisheries Society","publisherLocation":"Bethesda, MD","doi":"10.1080/00028487.2012.754786","usgsCitation":"VanLandeghem, M., Farooqi, M., Farquhar, B., and Patino, R., 2013, Impacts of golden alga Prymnesium parvum on fish populations in reservoirs of the upper Colorado River and Brazos River basins, Texas: Transactions of the American Fisheries Society, v. 142, no. 3, p. 581-595, https://doi.org/10.1080/00028487.2012.754786.","productDescription":"15 p.","startPage":"581","endPage":"595","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-042444","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":302382,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"142","issue":"3","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2013-03-15","publicationStatus":"PW","scienceBaseUri":"558e77b7e4b0b6d21dd6595b","contributors":{"authors":[{"text":"VanLandeghem, Matthew M.","contributorId":143728,"corporation":false,"usgs":false,"family":"VanLandeghem","given":"Matthew M.","affiliations":[],"preferred":false,"id":556994,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farooqi, Mukhtar","contributorId":143729,"corporation":false,"usgs":false,"family":"Farooqi","given":"Mukhtar","email":"","affiliations":[],"preferred":false,"id":556995,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Farquhar, B.","contributorId":42107,"corporation":false,"usgs":true,"family":"Farquhar","given":"B.","email":"","affiliations":[],"preferred":false,"id":556996,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Patino, Reynaldo 0000-0002-4831-8400 r.patino@usgs.gov","orcid":"https://orcid.org/0000-0002-4831-8400","contributorId":2311,"corporation":false,"usgs":true,"family":"Patino","given":"Reynaldo","email":"r.patino@usgs.gov","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":556890,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70048304,"text":"70048304 - 2013 - Reactive transport modeling at uranium in situ recovery sites: uncertainties in uranium sorption on iron hydroxides","interactions":[],"lastModifiedDate":"2014-04-08T12:37:25","indexId":"70048304","displayToPublicDate":"2013-01-01T11:59:18","publicationYear":"2013","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Reactive transport modeling at uranium in situ recovery sites: uncertainties in uranium sorption on iron hydroxides","docAbstract":"Geochemical changes that can occur down gradient from uranium in situ recovery (ISR) sites are important for various stakeholders to understand when evaluating potential effects on surrounding groundwater quality. If down gradient solid-phase material consists of sandstone with iron hydroxide coatings (no pyrite or organic carbon), sorption of uranium on iron hydroxides can control uranium mobility. Using one-dimensional reactive transport models with PHREEQC, two different geochemical databases, and various geochemical parameters, the uncertainties in uranium sorption on iron hydroxides are evaluated, because these oxidized zones create a greater risk for future uranium transport than fully reduced zones where uranium generally precipitates.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Annual International Mine Water Association Conference: Reliable Mine Water Technology","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"International Mine Water Association","usgsCitation":"Johnson, R.H., and Tutu, H., 2013, Reactive transport modeling at uranium in situ recovery sites: uncertainties in uranium sorption on iron hydroxides, in Annual International Mine Water Association Conference: Reliable Mine Water Technology, v. I, p. 377-382.","productDescription":"6 p.","startPage":"377","endPage":"382","numberOfPages":"6","ipdsId":"IP-046046","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":285891,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":285890,"type":{"id":15,"text":"Index Page"},"url":"https://www.imwa.info/imwa-meetings/proceedings/278-proceedings-2013.html"}],"volume":"I","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5355952fe4b0120853e8c17e","contributors":{"editors":[{"text":"Brown, Adrian","contributorId":114141,"corporation":false,"usgs":true,"family":"Brown","given":"Adrian","affiliations":[],"preferred":false,"id":509607,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Figueroa, Linda","contributorId":112780,"corporation":false,"usgs":true,"family":"Figueroa","given":"Linda","email":"","affiliations":[],"preferred":false,"id":509606,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Wolkersdorfer, Christian","contributorId":111680,"corporation":false,"usgs":true,"family":"Wolkersdorfer","given":"Christian","email":"","affiliations":[],"preferred":false,"id":509605,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Johnson, Raymond H. rhjohnso@usgs.gov","contributorId":707,"corporation":false,"usgs":true,"family":"Johnson","given":"Raymond","email":"rhjohnso@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":484268,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tutu, Hlanganani","contributorId":68218,"corporation":false,"usgs":true,"family":"Tutu","given":"Hlanganani","email":"","affiliations":[],"preferred":false,"id":484269,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70170999,"text":"70170999 - 2013 - In-stream attenuation of neuro-active pharmaceuticals and their metabolites","interactions":[],"lastModifiedDate":"2016-05-17T10:32:28","indexId":"70170999","displayToPublicDate":"2013-01-01T11:30:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"In-stream attenuation of neuro-active pharmaceuticals and their metabolites","docAbstract":"In-stream attenuation was determined for 14 neuro-active pharmaceuticals and associated metabolites. Lagrangian sampling, which follows a parcel of water as it moves downstream, was used to link hydrological and chemical transformation processes. Wastewater loading of neuro-active compounds varied considerably over a span of several hours, and thus a sampling regime was used to verify that the Lagrangian parcel was being sampled and a mechanism was developed to correct measured concentrations if it was not. In-stream attenuation over the 5.4-km evaluated reach could be modeled as pseudo-first-order decay for 11 of the 14 evaluated neuro-active pharmaceutical compounds, illustrating the capacity of streams to reduce conveyance of neuro-active compounds downstream. Fluoxetine and N-desmethyl citalopram were the most rapidly attenuated compounds (t1/2 = 3.6 ± 0.3 h, 4.0 ± 0.2 h, respectively). Lamotrigine, 10,11,-dihydro-10,11,-dihydroxy-carbamazepine, and carbamazepine were the most persistent (t1/2 = 12 ± 2.0 h, 12 ± 2.6 h, 21 ± 4.5 h, respectively). Parent compounds (e.g., buproprion, carbamazepine, lamotrigine) generally were more persistent relative to their metabolites. Several compounds (citalopram, venlafaxine, O-desmethyl-venlafaxine) were not attenuated. It was postulated that the primary mechanism of removal for these compounds was interaction with bed sediments and stream biofilms, based on measured concentrations in stream biofilms and a column experiment using stream sediments.
","language":"English","publisher":"American Chemical Society","publisherLocation":"Easton, PA","doi":"10.1021/es402158t","usgsCitation":"Writer, J., Antweiler, R.C., Ferrar, I., Ryan, J.N., and Thurman, M., 2013, In-stream attenuation of neuro-active pharmaceuticals and their metabolites: Environmental Science & Technology, v. 47, no. 17, p. 9781-9790, https://doi.org/10.1021/es402158t.","productDescription":"10 p.","startPage":"9781","endPage":"9790","numberOfPages":"10","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-046093","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":321290,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"17","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2013-08-16","publicationStatus":"PW","scienceBaseUri":"574d659ee4b07e28b668457f","contributors":{"authors":[{"text":"Writer, Jeffrey 0000-0002-8585-8166 jwriter@usgs.gov","orcid":"https://orcid.org/0000-0002-8585-8166","contributorId":169360,"corporation":false,"usgs":true,"family":"Writer","given":"Jeffrey","email":"jwriter@usgs.gov","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":629433,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Antweiler, Ronald C. 0000-0001-5652-6034 antweil@usgs.gov","orcid":"https://orcid.org/0000-0001-5652-6034","contributorId":1481,"corporation":false,"usgs":true,"family":"Antweiler","given":"Ronald","email":"antweil@usgs.gov","middleInitial":"C.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":629434,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ferrar, Imma","contributorId":169361,"corporation":false,"usgs":false,"family":"Ferrar","given":"Imma","email":"","affiliations":[{"id":25479,"text":"CU Boulder","active":true,"usgs":false}],"preferred":false,"id":629435,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ryan, Joseph N.","contributorId":54290,"corporation":false,"usgs":false,"family":"Ryan","given":"Joseph","email":"","middleInitial":"N.","affiliations":[{"id":604,"text":"University of Colorado- Boulder","active":false,"usgs":true}],"preferred":false,"id":629436,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Thurman, Michael","contributorId":72872,"corporation":false,"usgs":true,"family":"Thurman","given":"Michael","affiliations":[],"preferred":false,"id":629437,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70048086,"text":"70048086 - 2013 - Updating Maryland's sea-level rise projections","interactions":[],"lastModifiedDate":"2014-05-28T11:34:39","indexId":"70048086","displayToPublicDate":"2013-01-01T11:27:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"Updating Maryland's sea-level rise projections","docAbstract":"With its 3,100 miles of tidal shoreline and low-lying rural and urban lands, “The Free \nState” is one of the most vulnerable to sea-level rise. Historically, Marylanders have long \nhad to contend with rising water levels along its Chesapeake Bay and Atlantic Ocean and \ncoastal bay shores. Shorelines eroded and low-relief lands and islands, some previously \ninhabited, were inundated. Prior to the 20th century, this was largely due to the slow \nsinking of the land since Earth’s crust is still adjusting to the melting of large masses of \nice following the last glacial period. Over the 20th century, however, the rate of rise of the \naverage level of tidal waters with respect to land, or relative sea-level rise, has increased, \nat least partially as a result of global warming. Moreover, the scientific evidence is \ncompelling that Earth’s climate will continue to warm and its oceans will rise even more \nrapidly.
\nRecognizing the scientific consensus around global climate change, the contribution \nof human activities to it, and the vulnerability of Maryland’s people, property, public \ninvestments, and natural resources, Governor Martin O’Malley established the Maryland \nCommission on Climate Change on April 20, 2007. The Commission produced a Plan of \nAction that included a comprehensive climate change impact assessment, a greenhouse \ngas reduction strategy, and strategies for reducing Maryland’s vulnerability to climate \nchange. The Plan has led to landmark legislation to reduce the state’s greenhouse gas \nemissions and a variety of state policies designed to reduce energy consumption and \npromote adaptation to climate change.
","language":"English","publisher":"University of Maryland Center for Environmental Science","publisherLocation":"Cambridge, MD","collaboration":"Scientific and Technical Working Group Maryland Climate Change Commission","usgsCitation":"Boesch, D.F., Atkinson, L.P., Boicourt, W.C., Boon, J.D., Cahoon, D.R., Dalrymple, R., Ezer, T., Horton, B.P., Johnson, Z.P., Kopp, R., Li, M., Moss, R.H., Parris, A., and Sommerfield, C.K., 2013, Updating Maryland's sea-level rise projections, 19 p.","productDescription":"19 p.","numberOfPages":"22","ipdsId":"IP-045816","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":287666,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":277435,"type":{"id":11,"text":"Document"},"url":"https://ian.umces.edu/pdfs/ian_report_413.pdf"}],"country":"United States","state":"Maryl","otherGeospatial":"Chesapeake Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -77.5949,36.9078 ], [ -77.5949,39.6181 ], [ -75.6353,39.6181 ], [ -75.6353,36.9078 ], [ -77.5949,36.9078 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53870576e4b0aa26cd7b5413","contributors":{"authors":[{"text":"Boesch, Donald F.","contributorId":23599,"corporation":false,"usgs":true,"family":"Boesch","given":"Donald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":483709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Atkinson, Larry P.","contributorId":15527,"corporation":false,"usgs":true,"family":"Atkinson","given":"Larry","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":483707,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boicourt, William C.","contributorId":65388,"corporation":false,"usgs":true,"family":"Boicourt","given":"William","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":483715,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Boon, John D.","contributorId":108029,"corporation":false,"usgs":true,"family":"Boon","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":483718,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cahoon, Donald R. 0000-0002-2591-5667 dcahoon@usgs.gov","orcid":"https://orcid.org/0000-0002-2591-5667","contributorId":3791,"corporation":false,"usgs":true,"family":"Cahoon","given":"Donald","email":"dcahoon@usgs.gov","middleInitial":"R.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":483705,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dalrymple, Robert A.","contributorId":26627,"corporation":false,"usgs":true,"family":"Dalrymple","given":"Robert A.","affiliations":[],"preferred":false,"id":483710,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ezer, Tal","contributorId":21462,"corporation":false,"usgs":true,"family":"Ezer","given":"Tal","email":"","affiliations":[],"preferred":false,"id":483708,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Horton, Benjamin P.","contributorId":63641,"corporation":false,"usgs":true,"family":"Horton","given":"Benjamin","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":483713,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Johnson, Zoe P.","contributorId":81022,"corporation":false,"usgs":true,"family":"Johnson","given":"Zoe","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":483716,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kopp, Robert E.","contributorId":64570,"corporation":false,"usgs":true,"family":"Kopp","given":"Robert E.","affiliations":[],"preferred":false,"id":483714,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Li, Ming","contributorId":55714,"corporation":false,"usgs":true,"family":"Li","given":"Ming","email":"","affiliations":[],"preferred":false,"id":483712,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Moss, Richard H.","contributorId":48103,"corporation":false,"usgs":true,"family":"Moss","given":"Richard","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":483711,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Parris, Adam","contributorId":87861,"corporation":false,"usgs":true,"family":"Parris","given":"Adam","email":"","affiliations":[],"preferred":false,"id":483717,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Sommerfield, Christopher K.","contributorId":9820,"corporation":false,"usgs":true,"family":"Sommerfield","given":"Christopher","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":483706,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":70123975,"text":"70123975 - 2013 - Invasive species in southern Nevada","interactions":[],"lastModifiedDate":"2022-12-30T14:58:14.262778","indexId":"70123975","displayToPublicDate":"2013-01-01T11:21:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":32,"text":"General Technical Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"RMRS-GTR-303","chapter":"4","title":"Invasive species in southern Nevada","docAbstract":"Southern Nevada contains a wide range of topographies, elevations, and climactic zones emblematic of its position at the ecotone between the Mojave Desert, Great Basin, and Colorado Plateau ecoregions. These varied environmental conditions support a high degree of biological diversity (Chapter 1), but they also provide opportunities for a wide range of invasive species. In addition, the population center of the Las Vegas valley, and the agricultural area scattered throughout Clark, Lincoln, and Nye counties, all connected by a network of roads and highways, plus ephemeral and perennial watercourses, provide abundant opportunities for new invaders to be transported into and within southern Nevada (Brooks 2009; Brookes and Lair 2009).
\nInvasive species are a concern for land managers because they can compete directly with native species (Brooks 2000; Chambers and others 2007; DeFlaco and others 2003, 2007; Mazzola and others 2010), change habitat conditions (Brooks and Esque 2002; Esque and others 2010; Miller and others 2011), and alter ecosystems properties (Brooks and Matchett 2006; Brooks and Pyke 2001; Evans and others 2001). Many invasive species have already established and spread to the point that they are now considered to pose significant problems in southern Nevada. However, there are likely many more than have wither not been transported to or colonized the region, or have established by for various reasons not spread or increased in abundance to the point where they have a significant impact. Land managers must understand both current and potential future problems posed by invasive species to appropriately prioritize management actions.
\nThis chapter addressed Sub-goal 1.2 in the SNAP Science Research Strategy (table 1.3; Turner and others 2009), which is to protect southern Nevada's ecosystems from the adverse impacts of invasive species. It provides a brief overview of the key concepts associated with the ecology and management of invasive species, and includes information relevant to all five strategic goals identified by the National Invasive Species Council: prevention, early detection and rapid response, control and management, restoration, and organization collaboration (National Invasive Species Council 2001, 2008). Restoration also is discussed in a broader context in Chapter 5 and 7. This chapter does not present a comprehensive review of all invasive species associated land management issues in southern Nevada, but rather uses key species of concern to illustrate invasion ecology concepts and management strategies. It is focused on terrestrial and aquatic plants and animals, and does not address potential invasive taxa from the other Kingdoms. The information presented herein is intended to provide a foundation upon which land management plans can be developed and project-level decisions can be made relative to the management of invasive species in southern Nevada.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Southern Nevada Agency Partnership science and research synthesis: science to support land management in southern Nevada (General Technical Report RMRS-GTR-303)","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"U.S. Forest Service","publisherLocation":"Fort Collins, CO","usgsCitation":"Brooks, M.L., Ostoja, S.M., and Chambers, J., 2013, Invasive species in southern Nevada: General Technical Report RMRS-GTR-303, 15 p.","productDescription":"15 p.","startPage":"59","endPage":"73","numberOfPages":"15","ipdsId":"IP-035135","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":294505,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.fs.usda.gov/research/treesearch/43873","linkFileType":{"id":5,"text":"html"}},{"id":294506,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -114.62994356826636,\n 35.02392827573823\n ],\n [\n -114.71108092890972,\n 36.05434128183754\n ],\n [\n -114.1610398819929,\n 35.96903144947467\n ],\n [\n -113.99956682074821,\n 39.38359318014548\n ],\n [\n -120.06431672841825,\n 39.64524306073176\n ],\n [\n -120.09127846963423,\n 38.90168971729281\n ],\n [\n -114.62994356826636,\n 35.02392827573823\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54252ebde4b0e641df8a7060","contributors":{"authors":[{"text":"Brooks, Matthew L. 0000-0002-3518-6787 mlbrooks@usgs.gov","orcid":"https://orcid.org/0000-0002-3518-6787","contributorId":393,"corporation":false,"usgs":true,"family":"Brooks","given":"Matthew","email":"mlbrooks@usgs.gov","middleInitial":"L.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":500495,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ostoja, Steven M. sostoja@usgs.gov","contributorId":3039,"corporation":false,"usgs":true,"family":"Ostoja","given":"Steven","email":"sostoja@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":33665,"text":"USDA California Climate Hub, UC Davis","active":true,"usgs":false}],"preferred":false,"id":500496,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chambers, Jeanne","contributorId":32841,"corporation":false,"usgs":true,"family":"Chambers","given":"Jeanne","affiliations":[],"preferred":false,"id":500497,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70146643,"text":"70146643 - 2013 - 234U/238U and δ87Sr in peat as tracers of paleosalinity in the Sacramento-San Joaquin Delta of California, USA","interactions":[],"lastModifiedDate":"2015-04-22T15:29:15","indexId":"70146643","displayToPublicDate":"2013-01-01T11:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"234U/238U and δ87Sr in peat as tracers of paleosalinity in the Sacramento-San Joaquin Delta of California, USA","docAbstract":"The purpose of this study was to determine the history of paleosalinity over the past 6000+ years in the Sacramento-San Joaquin Delta (the Delta), which is the innermost part of the San Francisco Estuary. We used a combination of Sr and U concentrations, d87Sr values, and 234U/238U activity ratios (AR) in peat as proxies for tracking paleosalinity. Peat cores were collected in marshes on Browns Island, Franks Wetland, and Bacon Channel Island in the Delta. Cores were dated using 137Cs, the onset of Pb and Hg contamination from hydraulic gold mining, and 14C. A proof of concept study showed that the dominant emergent macrophyte and major component of peat in the Delta, Schoenoplectus spp., incorporates Sr and U and that the isotopic composition of these elements tracks the ambient water salinity across the Estuary. Concentrations and isotopic compositions of Sr and U in the three main water sources contributing to the Delta (seawater, Sacramento River water, and San Joaquin River water) were used to construct a three-end-member mixing model. Delta paleosalinity was determined by examining variations in the distribution of peat samples through time within the area delineated by the mixing model. The Delta has long been considered a tidal freshwater marsh region, but only peat samples from Franks Wetland and Bacon Channel Island have shown a consistently fresh signal (<0.5 ppt) through time. Therefore, the eastern Delta, which occurs upstream from Bacon Channel Island along the San Joaquin River and its tributaries, has also been fresh for this time period. Over the past 6000+ years, the salinity regime at the western boundary of the Delta (Browns Island) has alternated between fresh and oligohaline (0.5-5 ppt).
","language":"English","publisher":"International Association of Geochemistry and Cosmochemistry","publisherLocation":"New York, NY","doi":"10.1016/j.apgeochem.2013.10.011","usgsCitation":"Drexler, J., Paces, J.B., Alpers, C.N., Windham-Myers, L., Neymark, L., Bullen, T.D., and Taylor, H.E., 2013, 234U/238U and δ87Sr in peat as tracers of paleosalinity in the Sacramento-San Joaquin Delta of California, USA: Applied Geochemistry, v. 40, p. 164-179, https://doi.org/10.1016/j.apgeochem.2013.10.011.","productDescription":"16 p.","startPage":"164","endPage":"179","numberOfPages":"16","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-033405","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":299774,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":299758,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2013.10.011"}],"country":"United States","state":"California","otherGeospatial":"Sacramento-San Joaquin Delta","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.8632698059082,\n 38.014017213644024\n ],\n [\n -121.8632698059082,\n 38.07998712800633\n ],\n [\n -121.77331924438477,\n 38.07998712800633\n ],\n [\n -121.77331924438477,\n 38.014017213644024\n ],\n [\n -121.8632698059082,\n 38.014017213644024\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"40","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5536232de4b0b22a15807a77","contributors":{"authors":[{"text":"Drexler, Judith Z. 0000-0002-0127-3866 jdrexler@usgs.gov","orcid":"https://orcid.org/0000-0002-0127-3866","contributorId":1659,"corporation":false,"usgs":true,"family":"Drexler","given":"Judith Z.","email":"jdrexler@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":545214,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paces, James B. 0000-0002-9809-8493 jbpaces@usgs.gov","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":2514,"corporation":false,"usgs":true,"family":"Paces","given":"James","email":"jbpaces@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":545215,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":545216,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Windham-Myers, Lisamarie 0000-0003-0281-9581 lwindham-myers@usgs.gov","orcid":"https://orcid.org/0000-0003-0281-9581","contributorId":2449,"corporation":false,"usgs":true,"family":"Windham-Myers","given":"Lisamarie","email":"lwindham-myers@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":545217,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Neymark, Leonid A. 0000-0003-4190-0278 lneymark@usgs.gov","orcid":"https://orcid.org/0000-0003-4190-0278","contributorId":140338,"corporation":false,"usgs":true,"family":"Neymark","given":"Leonid A.","email":"lneymark@usgs.gov","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":545218,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bullen, Thomas D. 0000-0003-2281-1691 tdbullen@usgs.gov","orcid":"https://orcid.org/0000-0003-2281-1691","contributorId":1969,"corporation":false,"usgs":true,"family":"Bullen","given":"Thomas","email":"tdbullen@usgs.gov","middleInitial":"D.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":545219,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":545220,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70045371,"text":"70045371 - 2013 - Descriptions and characterizations of water-level data and groundwater flow for the Brewster Boulevard and Castle Hayne Aquifer Systems and the Tarawa Terrace Aquifer","interactions":[],"lastModifiedDate":"2014-06-20T14:09:30","indexId":"70045371","displayToPublicDate":"2013-01-01T10:59:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Descriptions and characterizations of water-level data and groundwater flow for the Brewster Boulevard and Castle Hayne Aquifer Systems and the Tarawa Terrace Aquifer","docAbstract":"This supplement of Chapter A (Supplement 3) summarizes results of analyses of groundwater-level data and describes corresponding elements of groundwater flow such as vertical hydraulic gradients useful for groundwater-flow model calibration. Field data as well as theoretical concepts indicate that potentiometric surfaces within the study area are shown to resemble to a large degree a subdued replica of surface topography. Consequently, precipitation that infiltrates to the water table flows laterally from highland to lowland areas and eventually discharges to streams such as Northeast and Wallace Creeks and New River. Vertically downward hydraulic gradients occur in highland areas resulting in the transfer of groundwater from shallow relatively unconfined aquifers to underlying confined or semi-confined aquifers. Conversely, in the vicinity of large streams such as Wallace and Frenchs Creeks, diffuse upward leakage occurs from underlying confined or semi-confined aquifers. Point water-level data indicating water-table altitudes, water-table altitudes estimated using a regression equation, and estimates of stream levels determined from a digital elevation model (DEM) and topographic maps were used to estimate a predevelopment water-table surface in the study area. Approximate flow lines along hydraulic gradients are shown on a predevelopment potentiometric surface map and extend from highland areas where potentiometric levels are greatest toward streams such as Wallace Creek and Northeast Creek. The distribution of potentiometric levels and corresponding groundwater-flow directions conform closely to related descriptions of the conceptual model.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard Water Treatment Plants and Vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"Agency for Toxic Substances and Disease Registry","publisherLocation":"Atlanta, GA","usgsCitation":"Faye, R.E., Jones, L.E., and Suárez-Soto, R., 2013, Descriptions and characterizations of water-level data and groundwater flow for the Brewster Boulevard and Castle Hayne Aquifer Systems and the Tarawa Terrace Aquifer, v, 102 p.","productDescription":"v, 102 p.","numberOfPages":"112","ipdsId":"IP-044303","costCenters":[{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true}],"links":[{"id":275567,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"U.S. Marine Corps Base Camp Lejeune","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -77.642065,34.449951 ], [ -77.642065,34.824047 ], [ -77.065869,34.824047 ], [ -77.065869,34.449951 ], [ -77.642065,34.449951 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f8e061e4b0cecbe8fa9864","contributors":{"authors":[{"text":"Faye, Robert E.","contributorId":92221,"corporation":false,"usgs":true,"family":"Faye","given":"Robert","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":477309,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, L. Elliott 0000-0002-7394-2053 lejones@usgs.gov","orcid":"https://orcid.org/0000-0002-7394-2053","contributorId":44569,"corporation":false,"usgs":true,"family":"Jones","given":"L.","email":"lejones@usgs.gov","middleInitial":"Elliott","affiliations":[],"preferred":false,"id":477308,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Suárez-Soto, René J.","contributorId":11101,"corporation":false,"usgs":true,"family":"Suárez-Soto","given":"René J.","affiliations":[],"preferred":false,"id":477307,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70123880,"text":"70123880 - 2013 - Ecosystem stressors in southern Nevada","interactions":[],"lastModifiedDate":"2022-12-30T14:37:20.491303","indexId":"70123880","displayToPublicDate":"2013-01-01T10:47:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":32,"text":"General Technical Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"RMRS-GTR-303","chapter":"2","title":"Ecosystem stressors in southern Nevada","docAbstract":"Southern Nevada ecosystems and their associated resources are subject to a number of global and regional/local stressors that are affecting the sustainability of the region. Global stressors include elevated carbon dioxide (CO2) concentrations and associated changes in temperature and precipitation patterns and amount, solar radiation, and nutrient cycles (Smith and others 2009b). Global stressors are ubiquitous in nature and interact both directly and indirectly with regional or local stressors. Regional/local stressors in southern Nevada include: population growth and urbanization and associated increases in nitrogen deposition, energy development, water development, and recreation; increased effects of insects and disease; ongoing effects of livestock, wild horse and burro grazing; new and expanding invasive species; and altered fire regimes. This chapter provides background information on the stressors affecting southern Nevada's ecosystems that is needed to address Goal 1.0 in the SNAP Science Research Strategy, which is to restore, sustain, and enhance southern Nevada's ecosystems (Turner and others 2009).
\nHuman population growth and changes in land use strongly affect the type and magnitude of local/regional stressors. From 1960 to 2010, Nevada's growth rate was the highest in the nation (www.census.gov/prod/cen2010/briefs/c2010br-01.pdf). Clark County has experienced particularly high growth, with a population increase of greater than 40 percent since the 2000 census. Factors like land ownership, historic and current land use, proximity to human and energy developments, and desirability for recreation all influence the level of human-caused stress.
\nThe strong elevation/climate gradients and large difference in the environmental characteristics of southern Nevada ecosystems (fig. 1.2; Chapter 1) have a major influence on both patterns of land use and the dominant stressors for different ecosystem types. Shifts in land use related to population growth, urbanization, and energy development and largely focused in lower elevation ecosystems including sagebursh, blackbrush and shadscale, and Mojave Desert scrub. Water divisions influence riparian/aquatic ecosystems and springs, while groundwater pumping also has the potential to affect ecosystems that characterize lower valleys including Mojave Desert scrub. Recreational uses influence all ecosystems, and wild horse and burro use and livestock grazing affect all but alpine and subalpine ecosystems. Insects and disease, as well as invasive species are widespread stressors. Fire is limited to ecosystems with sufficient fuels to carry fire and is strongly influence by invasive species in lower elevation Mojave Desert scrub, blackbrush and shadscale, and sagebursh ecosystems.
\nThis chapter address aspects of several of the Goals and Sub-goals listed in the SNAP Science Research Strategy (table 1.3; Turner and others 2009). Altered fire regimes, invasive species, land use practices, and management actions are addressed in Goal 1 -- Sustain, Restore, and Enhance Southern Nevada's Ecosystems. The effects of these stressors on sensitive species and habitat are specifically addressed in Sub-goal 1.4 -- Sustain and Enhance Southern Nevada's Biotic Communities, to Preserve Biodiversity and Maintain Populations. Anthropogenic factors, such a recreation and urbanization, are referred to in Goal 2-- Provide for Responsible Use of Southern Nevada;s Lands in a Manner that Preserve Heritage Resources and Promotes an Understanding of Human Interaction with the Landscape.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Southern Nevada Agency Partnership science and research synthesis: science to support land management in southern Nevada (General Technical Report RMRS-GTR-303)","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"U.S. Forest Service","publisherLocation":"Fort Collins, CO","usgsCitation":"Pendleton, B.K., Chambers, J., Brooks, M.L., and Ostoja, S.M., 2013, Ecosystem stressors in southern Nevada: General Technical Report RMRS-GTR-303, 20 p.","productDescription":"20 p.","startPage":"17","endPage":"36","numberOfPages":"20","ipdsId":"IP-037931","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":294496,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":294495,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.fs.usda.gov/research/treesearch/44301"}],"country":"United States","state":"Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -114.62994356826636,\n 35.02392827573823\n ],\n [\n -114.71108092890972,\n 36.05434128183754\n ],\n [\n -114.1610398819929,\n 35.96903144947467\n ],\n [\n -113.99956682074821,\n 39.38359318014548\n ],\n [\n -120.06431672841825,\n 39.64524306073176\n ],\n [\n -120.09127846963423,\n 38.90168971729281\n ],\n [\n -114.62994356826636,\n 35.02392827573823\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54252eade4b0e641df8a6f84","contributors":{"authors":[{"text":"Pendleton, Burton K.","contributorId":107187,"corporation":false,"usgs":true,"family":"Pendleton","given":"Burton","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":500448,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chambers, Jeanne C.","contributorId":75889,"corporation":false,"usgs":false,"family":"Chambers","given":"Jeanne C.","affiliations":[],"preferred":false,"id":500447,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brooks, Matthew L. 0000-0002-3518-6787 mlbrooks@usgs.gov","orcid":"https://orcid.org/0000-0002-3518-6787","contributorId":393,"corporation":false,"usgs":true,"family":"Brooks","given":"Matthew","email":"mlbrooks@usgs.gov","middleInitial":"L.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":500445,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ostoja, Steven M. sostoja@usgs.gov","contributorId":3039,"corporation":false,"usgs":true,"family":"Ostoja","given":"Steven","email":"sostoja@usgs.gov","middleInitial":"M.","affiliations":[{"id":33665,"text":"USDA California Climate Hub, UC Davis","active":true,"usgs":false},{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":500446,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70143878,"text":"70143878 - 2013 - Increases in dissolved organic carbon accelerate loss of toxic Al in Adirondack lakes recovering from acidification","interactions":[],"lastModifiedDate":"2015-03-24T09:45:54","indexId":"70143878","displayToPublicDate":"2013-01-01T10:45:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Increases in dissolved organic carbon accelerate loss of toxic Al in Adirondack lakes recovering from acidification","docAbstract":"Increasing pH and decreasing Al in surface waters recovering from acidification have been accompanied by increasing concentrations of dissolved organic carbon (DOC) and associated organic acids that partially offset pH increases and complicate assessments of recovery from acidification. To better understand the processes of recovery, monthly chemistry from 42 lakes in the Adirondack region, NY, collected from 1994 to 2011, were used to (1) evaluate long-term changes in DOC and associated strongly acidic organic acids and (2) use the base-cation surplus (BCS) as a chemical index to assess the effects of increasing DOC concentrations on the Al chemistry of these lakes. Over the study period, the BCS increased (p < 0.01) and concentrations of toxic inorganic monomeric Al (IMAl) decreased (p < 0.01). The decreases in IMAl were greater than expected from the increases in the BCS. Higher DOC concentrations that increased organic complexation of Al resulted in a decrease in the IMAl fraction of total monomeric Al from 57% in 1994 to 23% in 2011. Increasing DOC concentrations have accelerated recovery in terms of decreasing toxic Al beyond that directly accomplished by reducing atmospheric deposition of strong mineral acids.
","language":"English","publisher":"American Chemical Society","publisherLocation":"Washington, D.C.","doi":"10.1021/es4004763","collaboration":"New York State Energy Research and Development Authority; USGS","usgsCitation":"Lawrence, G.B., Dukett, J.E., Houck, N., Snyder, P., and Capone, S.B., 2013, Increases in dissolved organic carbon accelerate loss of toxic Al in Adirondack lakes recovering from acidification: Environmental Science & Technology, v. 47, no. 13, p. 7095-7100, https://doi.org/10.1021/es4004763.","productDescription":"6 p.","startPage":"7095","endPage":"7100","numberOfPages":"6","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-062340","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":298893,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":298876,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.acs.org/action/doSearch?text1=increases+in+dissolved+organic+carbon&=&field1=Title&type=within&publication=40025991"}],"volume":"47","issue":"13","publishingServiceCenter":{"id":11,"text":"Pembroke PSC"},"noUsgsAuthors":false,"publicationDate":"2013-06-24","publicationStatus":"PW","scienceBaseUri":"55128ab0e4b02e76d75bd614","contributors":{"authors":[{"text":"Lawrence, Gregory B. 0000-0002-8035-2350 glawrenc@usgs.gov","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":867,"corporation":false,"usgs":true,"family":"Lawrence","given":"Gregory","email":"glawrenc@usgs.gov","middleInitial":"B.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":543083,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dukett, James E","contributorId":139811,"corporation":false,"usgs":false,"family":"Dukett","given":"James","email":"","middleInitial":"E","affiliations":[{"id":13280,"text":"Adirondack Lakes Survey Corp, Ray Brook NY","active":true,"usgs":false}],"preferred":false,"id":543084,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Houck, Nathan","contributorId":139812,"corporation":false,"usgs":false,"family":"Houck","given":"Nathan","email":"","affiliations":[{"id":13280,"text":"Adirondack Lakes Survey Corp, Ray Brook NY","active":true,"usgs":false}],"preferred":false,"id":543085,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Snyder, Phillip","contributorId":139813,"corporation":false,"usgs":false,"family":"Snyder","given":"Phillip","email":"","affiliations":[{"id":13280,"text":"Adirondack Lakes Survey Corp, Ray Brook NY","active":true,"usgs":false}],"preferred":false,"id":543086,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Capone, Susan B.","contributorId":20438,"corporation":false,"usgs":true,"family":"Capone","given":"Susan","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":543087,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70112474,"text":"70112474 - 2013 - Harmonizing multiple methods for reconstructing historical potential and reference evapotranspiration","interactions":[],"lastModifiedDate":"2014-07-28T08:47:26","indexId":"70112474","displayToPublicDate":"2013-01-01T10:35:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2341,"text":"Journal of Hydrologic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Harmonizing multiple methods for reconstructing historical potential and reference evapotranspiration","docAbstract":"Potential evapotranspiration (PET) and reference evapotranspiration (RET) data are usually critical components of hydrologic analysis. Many different equations are available to estimate PET and RET. Most of these equations, such as the Priestley-Taylor and Penman- Monteith methods, rely on detailed meteorological data collected at ground-based weather stations. Few weather stations collect enough data to estimate PET or RET using one of the more complex evapotranspiration equations. Currently, satellite data integrated with ground meteorological data are used with one of these evapotranspiration equations to accurately estimate PET and RET. However, earlier than the last few decades, historical reconstructions of PET and RET needed for many hydrologic analyses are limited by the paucity of satellite data and of some types of ground data. Air temperature stands out as the most generally available meteorological ground data type over the last century. Temperature-based approaches used with readily available historical temperature data offer the potential for long period-of-record PET and RET historical reconstructions. A challenge is the inconsistency between the more accurate, but more data intensive, methods appropriate for more recent periods and the less accurate, but less data intensive, methods appropriate to the more distant past. In this study, multiple methods are harmonized in a seamless reconstruction of historical PET and RET by quantifying and eliminating the biases of the simple Hargreaves-Samani method relative to the more complex and accurate Priestley-Taylor and Penman-Monteith methods. This harmonization process is used to generate long-term, internally consistent, spatiotemporal databases of PET and RET.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrologic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Society of Civil Engineers","publisherLocation":"New York, NY","doi":"10.1061/(ASCE)HE.1943-5584.0000935","usgsCitation":"Belaineh, G., Sumner, D., Carter, E., and Clapp, D., 2013, Harmonizing multiple methods for reconstructing historical potential and reference evapotranspiration: Journal of Hydrologic Engineering, v. 19, no. 8, 8 p., https://doi.org/10.1061/(ASCE)HE.1943-5584.0000935.","productDescription":"8 p.","numberOfPages":"8","ipdsId":"IP-039256","costCenters":[{"id":285,"text":"Florida Water Science Center","active":false,"usgs":true}],"links":[{"id":288621,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":288619,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000935"}],"country":"United States","state":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.0,27.0 ], [ -84.0,31.0 ], [ -80.0,31.0 ], [ -80.0,27.0 ], [ -84.0,27.0 ] ] ] } } ] }","volume":"19","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7736e4b0abf75cf2c0a7","contributors":{"authors":[{"text":"Belaineh, Getachew","contributorId":37262,"corporation":false,"usgs":true,"family":"Belaineh","given":"Getachew","email":"","affiliations":[],"preferred":false,"id":494756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sumner, David","contributorId":63731,"corporation":false,"usgs":true,"family":"Sumner","given":"David","affiliations":[],"preferred":false,"id":494758,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carter, Edward","contributorId":49714,"corporation":false,"usgs":true,"family":"Carter","given":"Edward","email":"","affiliations":[],"preferred":false,"id":494757,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clapp, David","contributorId":10338,"corporation":false,"usgs":true,"family":"Clapp","given":"David","email":"","affiliations":[],"preferred":false,"id":494755,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70134480,"text":"70134480 - 2013 - Effects of acidic deposition and soil acidification on sugar maple trees in the Adirondack Mountains, New York","interactions":[],"lastModifiedDate":"2017-04-25T10:54:35","indexId":"70134480","displayToPublicDate":"2013-01-01T10:30:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Effects of acidic deposition and soil acidification on sugar maple trees in the Adirondack Mountains, New York","docAbstract":"We documented the effects of acidic atmospheric deposition and soil acidification on the canopy health, basal area increment, and regeneration of sugar maple (SM) trees across the Adirondack region of New York State, in the northeastern United States, where SM are plentiful but not well studied and where widespread depletion of soil calcium (Ca) has been documented. Sugar maple is a dominant canopy species in the Adirondack Mountain ecoregion, and it has a high demand for Ca. Trees in this region growing on soils with poor acid–base chemistry (low exchangeable Ca and % base saturation [BS]) that receive relatively high levels of atmospheric sulfur and nitrogen deposition exhibited a near absence of SM seedling regeneration and lower crown vigor compared with study plots with relatively high exchangeable Ca and BS and lower levels of acidic deposition. Basal area increment averaged over the 20th century was correlated (p < 0.1) with acid–base chemistry of the Oa, A, and upper B soil horizons. A lack of Adirondack SM regeneration, reduced canopy condition, and possibly decreased basal area growth over recent decades are associated with low concentrations of nutrient base cations in this region that has undergone soil Ca depletion from acidic deposition.
","language":"English","publisher":"ACS Publications","publisherLocation":"Easton, PA","doi":"10.1021/es401864w","usgsCitation":"Sullivan, T.J., Lawrence, G.B., Bailey, S.W., McDonnell, T.C., Beier, C.M., Weathers, K., McPherson, G., and Bishop, D.A., 2013, Effects of acidic deposition and soil acidification on sugar maple trees in the Adirondack Mountains, New York: Environmental Science & Technology, v. 47, no. 22, p. 12687-12694, https://doi.org/10.1021/es401864w.","productDescription":"8 p.","startPage":"12687","endPage":"12694","numberOfPages":"8","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-045933","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":296365,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New York","otherGeospatial":"Adirondack Mountains","volume":"47","issue":"22","noUsgsAuthors":false,"publicationDate":"2013-11-07","publicationStatus":"PW","scienceBaseUri":"547ee2bee4b09357f05f8a47","contributors":{"authors":[{"text":"Sullivan, Timothy J.","contributorId":77812,"corporation":false,"usgs":true,"family":"Sullivan","given":"Timothy","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":526006,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lawrence, Gregory B. 0000-0002-8035-2350 glawrenc@usgs.gov","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":867,"corporation":false,"usgs":true,"family":"Lawrence","given":"Gregory","email":"glawrenc@usgs.gov","middleInitial":"B.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":526001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bailey, Scott W. 0000-0002-9160-156X","orcid":"https://orcid.org/0000-0002-9160-156X","contributorId":36840,"corporation":false,"usgs":true,"family":"Bailey","given":"Scott","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":526005,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McDonnell, Todd C.","contributorId":127622,"corporation":false,"usgs":false,"family":"McDonnell","given":"Todd","email":"","middleInitial":"C.","affiliations":[{"id":7087,"text":"Scientist, E&S Environmental Chemistry Inc, Corvallis OR","active":true,"usgs":false}],"preferred":false,"id":526007,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Beier, Colin M.","contributorId":17107,"corporation":false,"usgs":true,"family":"Beier","given":"Colin","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":526002,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Weathers, K.C.","contributorId":41378,"corporation":false,"usgs":true,"family":"Weathers","given":"K.C.","email":"","affiliations":[],"preferred":false,"id":526071,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McPherson, G.T.","contributorId":127621,"corporation":false,"usgs":false,"family":"McPherson","given":"G.T.","email":"","affiliations":[{"id":7086,"text":"Field Technician, E&S Environmental Chemistry Inc, Corvallis OR","active":true,"usgs":false}],"preferred":false,"id":526004,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bishop, Daniel A.","contributorId":127620,"corporation":false,"usgs":false,"family":"Bishop","given":"Daniel","email":"","middleInitial":"A.","affiliations":[{"id":7085,"text":"Graduate Student, SUNY at ESF, Syracuse NY","active":true,"usgs":false}],"preferred":false,"id":526003,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70129208,"text":"70129208 - 2013 - Geochemical monitoring for potential environmental impacts of geologic sequestration of CO2","interactions":[],"lastModifiedDate":"2017-06-30T15:13:30","indexId":"70129208","displayToPublicDate":"2013-01-01T10:26:41","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3281,"text":"Reviews in Mineralogy and Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Geochemical monitoring for potential environmental impacts of geologic sequestration of CO2","docAbstract":"Carbon dioxide sequestration is now considered an important component of the portfolio of options for reducing greenhouse gas emissions to stabilize their atmospheric levels at values that would limit global temperature increases to the target of 2 °C by the end of the century (Pacala and Socolow 2004; IPCC 2005, 2007; Benson and Cook 2005; Benson and Cole 2008; IEA 2012; Romanak et al. 2013). Increased anthropogenic emissions of CO2 have raised its atmospheric concentrations from about 280 ppmv during pre-industrial times to ~400 ppmv today, and based on several defined scenarios, CO2 concentrations are projected to increase to values as high as 1100 ppmv by 2100 (White et al. 2003; IPCC 2005, 2007; EIA 2012; Global CCS Institute 2012). An atmospheric CO2 concentration of 450 ppmv is generally the accepted level that is needed to limit global temperature increases to the target of 2 °C by the end of the century. This temperature limit likely would moderate the adverse effects related to climate change that could include sea-level rise from the melting of alpine glaciers and continental ice sheets and from the ocean warming; increased frequency and intensity of wildfires, floods, droughts, and tropical storms; and changes in the amount, timing, and distribution of rain, snow, and runoff (IPCC 2007; Sundquist et al. 2009; IEA 2012). Rising atmospheric CO2 concentrations are also increasing the amount of CO2 dissolved in ocean water lowering its pH from 8.1 to 8.0, with potentially disruptive effects on coral reefs, plankton and marine ecosystems (Adams and Caldeira 2008; Schrag 2009; Sundquist et al. 2009). Sedimentary basins in general and deep saline aquifers in particular are being investigated as possible repositories for the large volumes of anthropogenic CO2 that must be sequestered to mitigate global warming and related climate changes (Hitchon 1996; Benson and Cole 2008; Verma and Warwick 2011).
","language":"English","publisher":"Mineralogical Society of America","publisherLocation":"Washington, D.C.","doi":"10.2138/rmg.2013.77.11","usgsCitation":"Kharaka, Y.K., Cole, D.R., Thordsen, J., Gans, K.D., and Thomas, R.B., 2013, Geochemical monitoring for potential environmental impacts of geologic sequestration of CO2: Reviews in Mineralogy and Geochemistry, v. 77, no. 1, p. 399-430, https://doi.org/10.2138/rmg.2013.77.11.","productDescription":"32 p.","startPage":"399","endPage":"430","numberOfPages":"32","ipdsId":"IP-051042","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"links":[{"id":295531,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":295478,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2138/rmg.2013.77.11"}],"volume":"77","issue":"1","noUsgsAuthors":false,"publicationDate":"2013-11-07","publicationStatus":"PW","scienceBaseUri":"544775afe4b0f888a81b831a","contributors":{"authors":[{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":503542,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cole, David R.","contributorId":79044,"corporation":false,"usgs":true,"family":"Cole","given":"David","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":503546,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thordsen, James J. jthordsn@usgs.gov","contributorId":3329,"corporation":false,"usgs":true,"family":"Thordsen","given":"James J.","email":"jthordsn@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":503543,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gans, Kathleen D. 0000-0002-7545-9655 kgans@usgs.gov","orcid":"https://orcid.org/0000-0002-7545-9655","contributorId":5403,"corporation":false,"usgs":true,"family":"Gans","given":"Kathleen","email":"kgans@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":503545,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Thomas, Randal B. burt_thomas@usgs.gov","contributorId":5073,"corporation":false,"usgs":true,"family":"Thomas","given":"Randal","email":"burt_thomas@usgs.gov","middleInitial":"B.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":503544,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70118538,"text":"70118538 - 2013 - Overestimated water storage","interactions":[],"lastModifiedDate":"2014-07-29T10:23:36","indexId":"70118538","displayToPublicDate":"2013-01-01T10:21:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2845,"text":"Nature Geoscience","active":true,"publicationSubtype":{"id":10}},"title":"Overestimated water storage","docAbstract":"No abstract available.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature Geoscience","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Nature Pub. Group","publisherLocation":"New York, NY","doi":"10.1038/ngeo1659","usgsCitation":"Konikow, L.F., 2013, Overestimated water storage: Nature Geoscience, v. 6, no. 1, 3 p., https://doi.org/10.1038/ngeo1659.","productDescription":"3 p.","numberOfPages":"3","costCenters":[],"links":[{"id":474006,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1038/ngeo1659","text":"Publisher Index Page"},{"id":291264,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291263,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/ngeo1659"}],"volume":"6","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-12-21","publicationStatus":"PW","scienceBaseUri":"57f7f38de4b0bc0bec0a0a40","contributors":{"authors":[{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":496946,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70121488,"text":"70121488 - 2013 - Potential effects of sea-level rise on coastal wetlands in southeastern Louisiana","interactions":[],"lastModifiedDate":"2014-08-22T10:22:26","indexId":"70121488","displayToPublicDate":"2013-01-01T10:19:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Potential effects of sea-level rise on coastal wetlands in southeastern Louisiana","docAbstract":"Coastal Louisiana wetlands contain about 37% of the estuarine herbaceous marshes in the conterminous United States. The long-term stability of coastal wetlands is often a function of a wetland's ability to maintain elevation equilibrium with mean sea level through processes such as primary production and sediment accretion. However, Louisiana has sustained more coastal wetland loss than all other states in the continental United States combined due to a combination of natural and anthropogenic factors, including sea-level rise. This study investigates the potential impact of current and accelerating sea-level rise rates on key coastal wetland habitats in southeastern Louisiana using the Sea Level Affecting Marshes Model (SLAMM). Model calibration was conducted using a 1956–2007 observation period and hindcasting results predicted 35% versus observed 39% total marsh loss. Multiple sea-level-rise scenarios were then simulated for the period of 2007–2100. Results indicate a range of potential wetland losses by 2100, from an additional 2,188.97 km2 (218,897 ha, 9% of the 2007 wetland area) under the lowest sea-level-rise scenario (0.34 m), to a potential loss of 5,875.27 km2 (587,527 ha, 24% of the 2007 wetland area) in the highest sea-level-rise scenario (1.9 m). Model results suggest that one area of particular concern is the potential vulnerability of the region's baldcypress-water tupelo (Taxodium distichum-Nyssa aquatica) swamp habitat, much of which is projected to become permanently flooded (affecting regeneration) under all modeled scenarios for sea-level rise. These findings will aid in the development of ecosystem management plans that support the processes and conditions that result in sustainable coastal ecosystems.
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