Antecedent geology plays a crucial role in determining the inner-shelf, nearshore, and onshore geomorphology observed in coastal systems. However, the influence of the geologic framework on a system is difficult to extract when evaluating responses to changes due to storms and anthropogenic modifications, and few studies have quantified the potential for these influences in dune/beach environments. This study evaluates topographic change to the dune/beach system at Fire Island, New York over a ten year period (1998-2008) at two sites representing eastern and western reaches of the island where morphology has been shown to vary. The sites are situated along swaths of coast eroding differentially and where the inner shelf geologic framework differs substantially. Fewer large storms occurred in the first half of the study period, compared with the later part of the study period which includes several severe and prolonged extratropical storms. Additionally, a major beach replenishment project was conducted at one of the study sites. Topographic data from LiDAR and RTK GPS surveys are used to construct high-resolution 3D surfaces, which are used to determine volumetric change and to extract 2D alongshore features and profiles for analysis. The study sites help to further characterize morphologic differences between eastern and western reaches of the island. The western site displays higher sand volumes, lower dunes, and a lower gradient profile slope when compared with the eastern site. In addition to these fundamental morphologic differences, the two sites also differ significantly in their response to coastal storms and in the fact that their replenishment histories are different. The replenished areas show reduced vulnerability to storms through minimal volume loss and shoreline accretion that should be considered when evaluating the response of replenished areas to episodic events. We propose that site-specific differences evident throughout the study period can be linked to alongshore variations in the framework geology of the system. Anthropogenic modifications may have intensified differences already inherent in the system.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.geomorph.2010.10.032","issn":"0169555X","usgsCitation":"Lentz, E.E., and Hapke, C., 2011, Geologic framework influences on the geomorphology of an anthropogenically modified barrier island: Assessment of dune/beach changes at Fire Island, New York: Geomorphology, v. 126, no. 1-2, p. 82-96, https://doi.org/10.1016/j.geomorph.2010.10.032.","productDescription":"15 p.","startPage":"82","endPage":"96","ipdsId":"IP-018439","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":244339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216468,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.geomorph.2010.10.032"}],"country":"United States","state":"New York","otherGeospatial":"Fire Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.24722290039062,\n 40.66813955408042\n ],\n [\n -73.21563720703125,\n 40.61082491956405\n ],\n [\n -72.83798217773438,\n 40.71707851579789\n ],\n [\n -72.88604736328125,\n 40.76702162667872\n ],\n [\n -73.24722290039062,\n 40.66813955408042\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"126","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a196ae4b0c8380cd5599e","contributors":{"authors":[{"text":"Lentz, Erika E. 0000-0002-0621-8954 elentz@usgs.gov","orcid":"https://orcid.org/0000-0002-0621-8954","contributorId":173964,"corporation":false,"usgs":true,"family":"Lentz","given":"Erika","email":"elentz@usgs.gov","middleInitial":"E.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":452689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hapke, Cheryl 0000-0002-2753-4075 chapke@usgs.gov","orcid":"https://orcid.org/0000-0002-2753-4075","contributorId":139949,"corporation":false,"usgs":true,"family":"Hapke","given":"Cheryl","email":"chapke@usgs.gov","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":452690,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035990,"text":"70035990 - 2011 - Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations","interactions":[],"lastModifiedDate":"2021-02-04T17:19:42.215385","indexId":"70035990","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2682,"text":"Marine and Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations","docAbstract":"In February 2007, the U.S. Department of Energy, BP Exploration (Alaska), and the U.S. Geological Survey, collected open-hole pressure-response data, as well as gas and water sample collection, in a gas hydrate reservoir (the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well) using Schlumberger's Modular Dynamics Formation Tester (MDT) wireline tool. Four such MDT tests, ranging from six to twelve hours duration, and including a series of flow, sampling, and shut-in periods of various durations, were conducted. Locations for the testing were selected based on NMR and other log data to assure sufficient isolation from reservoir boundaries and zones of excess free water. Test stages in which pressure was reduced sufficiently to mobilize free water in the formation (yet not cause gas hydrate dissociation) produced readily interpretable pressure build-up profiles. Build-ups following larger drawdowns consistently showed gas-hydrate dissociation and gas release (as confirmed by optical fluid analyzer data), as well as progressive dampening of reservoir pressure build-up during sequential tests at a given MDT test station.
History matches of one multi-stage, 12-h test (the C2 test) were accomplished using five different reservoir simulators: CMG-STARS, HydrateResSim, MH21-HYDRES, STOMP-HYD, and TOUGH + HYDRATE. Simulations utilized detailed information collected across the reservoir either obtained or determined from geophysical well logs, including thickness (11.3 m, 37 ft.), porosity (35%), hydrate saturation (65%), both mobile and immobile water saturations, intrinsic permeability (1000 mD), pore water salinity (5 ppt), and formation temperature (3.3–3.9 °C). This paper will present the approach and preliminary results of the history-matching efforts, including estimates of initial formation permeability and analyses of the various unique features exhibited by the MDT results.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.marpetgeo.2010.02.012","issn":"02648172","usgsCitation":"Anderson, B., Hancock, S., Wilson, S., Enger, C., Collett, T.S., Boswell, R., and Hunter, R., 2011, Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations: Marine and Petroleum Geology, v. 28, no. 2, p. 478-492, https://doi.org/10.1016/j.marpetgeo.2010.02.012.","productDescription":"15 p.","startPage":"478","endPage":"492","costCenters":[],"links":[{"id":244348,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216477,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2010.02.012"}],"country":"United States","state":"Alaska","otherGeospatial":"The North Slope","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -167.080078125,\n 67.20403234340081\n ],\n [\n -140.888671875,\n 67.20403234340081\n ],\n [\n -140.888671875,\n 71.63599288330609\n ],\n [\n -167.080078125,\n 71.63599288330609\n ],\n [\n -167.080078125,\n 67.20403234340081\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a135ae4b0c8380cd54621","contributors":{"authors":[{"text":"Anderson, B.","contributorId":34705,"corporation":false,"usgs":true,"family":"Anderson","given":"B.","affiliations":[],"preferred":false,"id":453503,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hancock, S.","contributorId":71742,"corporation":false,"usgs":false,"family":"Hancock","given":"S.","email":"","affiliations":[],"preferred":false,"id":453507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, S.","contributorId":98935,"corporation":false,"usgs":true,"family":"Wilson","given":"S.","affiliations":[],"preferred":false,"id":453509,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Enger, C.","contributorId":83762,"corporation":false,"usgs":true,"family":"Enger","given":"C.","email":"","affiliations":[],"preferred":false,"id":453508,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Collett, Timothy S. 0000-0002-7598-4708 tcollett@usgs.gov","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":1698,"corporation":false,"usgs":true,"family":"Collett","given":"Timothy","email":"tcollett@usgs.gov","middleInitial":"S.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":453506,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Boswell, R.","contributorId":35121,"corporation":false,"usgs":true,"family":"Boswell","given":"R.","affiliations":[],"preferred":false,"id":453504,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hunter, R.","contributorId":36778,"corporation":false,"usgs":true,"family":"Hunter","given":"R.","affiliations":[],"preferred":false,"id":453505,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70036347,"text":"70036347 - 2011 - Analysis of group-velocity dispersion of high-frequency Rayleigh waves for near-surface applications","interactions":[],"lastModifiedDate":"2021-01-18T19:51:13.837392","indexId":"70036347","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2165,"text":"Journal of Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Analysis of group-velocity dispersion of high-frequency Rayleigh waves for near-surface applications","docAbstract":"The Multichannel Analysis of Surface Waves (MASW) method is an efficient tool to obtain the vertical shear (S)-wave velocity profile using the dispersive characteristic of Rayleigh waves. Most MASW researchers mainly apply Rayleigh-wave phase-velocity dispersion for S-wave velocity estimation with a few exceptions applying Rayleigh-wave group-velocity dispersion. Herein, we first compare sensitivities of fundamental surface-wave phase velocities with group velocities with three four-layer models including a low-velocity layer or a high-velocity layer. Then synthetic data are simulated by a finite difference method. Images of group-velocity dispersive energy of the synthetic data are generated using the Multiple Filter Analysis (MFA) method. Finally we invert a high-frequency surface-wave group-velocity dispersion curve of a real-world example. Results demonstrate that (1) the sensitivities of group velocities are higher than those of phase velocities and usable frequency ranges are wider than that of phase velocities, which is very helpful in improving inversion stability because for a stable inversion system, small changes in phase velocities do not result in a large fluctuation in inverted S-wave velocities; (2) group-velocity dispersive energy can be measured using single-trace data if Rayleigh-wave fundamental-mode energy is dominant, which suggests that the number of shots required in data acquisition can be dramatically reduced and the horizontal resolution can be greatly improved using analysis of group-velocity dispersion; and (3) the suspension logging results of the real-world example demonstrate that inversion of group velocities generated by the MFA method can successfully estimate near-surface S-wave velocities.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.jappgeo.2011.04.002","issn":"09269851","usgsCitation":"Luo, Y., Xia, J., Xu, Y., and Zeng, C., 2011, Analysis of group-velocity dispersion of high-frequency Rayleigh waves for near-surface applications: Journal of Applied Geophysics, v. 74, no. 2-3, p. 157-165, https://doi.org/10.1016/j.jappgeo.2011.04.002.","productDescription":"9 p.","startPage":"157","endPage":"165","costCenters":[],"links":[{"id":246218,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218227,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jappgeo.2011.04.002"}],"volume":"74","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eb1ae4b0c8380cd48c0a","contributors":{"authors":[{"text":"Luo, Y.","contributorId":28417,"corporation":false,"usgs":true,"family":"Luo","given":"Y.","email":"","affiliations":[],"preferred":false,"id":455673,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":455675,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xu, Y.","contributorId":47816,"corporation":false,"usgs":true,"family":"Xu","given":"Y.","email":"","affiliations":[],"preferred":false,"id":455674,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zeng, C.","contributorId":94519,"corporation":false,"usgs":true,"family":"Zeng","given":"C.","email":"","affiliations":[],"preferred":false,"id":455676,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033997,"text":"70033997 - 2011 - Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models","interactions":[],"lastModifiedDate":"2026-01-29T14:30:04.625608","indexId":"70033997","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1321,"text":"Conservation Biology","active":true,"publicationSubtype":{"id":10}},"title":"Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models","docAbstract":"Avian conservation efforts must account for changes in vegetation composition and structure associated with climate change. We modeled vegetation change and the probability of occurrence of birds to project changes in winter bird distributions associated with climate change and fire management in the northern Chihuahuan Desert (southwestern U.S.A.). We simulated vegetation change in a process-based model (Landscape and Fire Simulator) in which anticipated climate change was associated with doubling of current atmospheric carbon dioxide over the next 50 years. We estimated the relative probability of bird occurrence on the basis of statistical models derived from field observations of birds and data on vegetation type, topography, and roads. We selected 3 focal species, Scaled Quail (Callipepla squamata), Loggerhead Shrike (Lanius ludovicianus), and Rock Wren (Salpinctes obsoletus), that had a range of probabilities of occurrence for our study area. Our simulations projected increases in relative probability of bird occurrence in shrubland and decreases in grassland and Yucca spp. and ocotillo (Fouquieria splendens) vegetation. Generally, the relative probability of occurrence of all 3 species was highest in shrubland because leaf-area index values were lower in shrubland. This high probability of occurrence likely is related to the species' use of open vegetation for foraging. Fire suppression had little effect on projected vegetation composition because as climate changed there was less fuel and burned area. Our results show that if future water limits on plant type are considered, models that incorporate spatial data may suggest how and where different species of birds may respond to vegetation changes.
","language":"English, Spanish","publisher":"Society for Conservation Biology","doi":"10.1111/j.1523-1739.2011.01684.x","issn":"08888892","usgsCitation":"White, J., Gutzwiller, K.J., Barrow, W., Johnson-Randall, L., Zygo, L., and Swint, P., 2011, Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models: Conservation Biology, v. 25, no. 3, p. 536-546, https://doi.org/10.1111/j.1523-1739.2011.01684.x.","productDescription":"11 p.","startPage":"536","endPage":"546","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":216808,"rank":2,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1523-1739.2011.01684.x"},{"id":244700,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Chihuahuan Desert","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.533203125,\n 28.92163128242129\n ],\n [\n -111.533203125,\n 34.379712580462204\n ],\n [\n -101.337890625,\n 34.379712580462204\n ],\n [\n -101.337890625,\n 28.92163128242129\n ],\n [\n -111.533203125,\n 28.92163128242129\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"25","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-04-28","publicationStatus":"PW","scienceBaseUri":"505bbc4be4b08c986b328b52","contributors":{"authors":[{"text":"White, Joseph D.","contributorId":56077,"corporation":false,"usgs":true,"family":"White","given":"Joseph D.","affiliations":[],"preferred":false,"id":443575,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gutzwiller, Kevin J.","contributorId":101923,"corporation":false,"usgs":true,"family":"Gutzwiller","given":"Kevin","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":443576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barrow, Wylie C. 0000-0003-4671-2823 barroww@usgs.gov","orcid":"https://orcid.org/0000-0003-4671-2823","contributorId":1988,"corporation":false,"usgs":true,"family":"Barrow","given":"Wylie C.","email":"barroww@usgs.gov","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":false,"id":443571,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson-Randall, Lori 0000-0003-0100-994X","orcid":"https://orcid.org/0000-0003-0100-994X","contributorId":43604,"corporation":false,"usgs":true,"family":"Johnson-Randall","given":"Lori","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":443573,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zygo, Lisa","contributorId":9898,"corporation":false,"usgs":true,"family":"Zygo","given":"Lisa","affiliations":[],"preferred":false,"id":443572,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Swint, Pamela","contributorId":32765,"corporation":false,"usgs":true,"family":"Swint","given":"Pamela","email":"","affiliations":[],"preferred":false,"id":443574,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70036234,"text":"70036234 - 2011 - Fire frequency, area burned, and severity: A quantitative approach to defining a normal fire year","interactions":[],"lastModifiedDate":"2021-01-20T21:13:11.940359","indexId":"70036234","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1636,"text":"Fire Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Fire frequency, area burned, and severity: A quantitative approach to defining a normal fire year","docAbstract":"Fire frequency, area burned, and fire severity are important attributes of a fire regime, but few studies have quantified the interrelationships among them in evaluating a fire year. Although area burned is often used to summarize a fire season, burned area may not be well correlated with either the number or ecological effect of fires. Using the Landsat data archive, we examined all 148 wildland fires (prescribed fires and wildfires) >40 ha from 1984 through 2009 for the portion of the Sierra Nevada centered on Yosemite National Park, California, USA. We calculated mean fire frequency and mean annual area burned from a combination of field- and satellite-derived data. We used the continuous probability distribution of the differenced Normalized Burn Ratio (dNBR) values to describe fire severity. For fires >40 ha, fire frequency, annual area burned, and cumulative severity were consistent in only 13 of 26 years (50 %), but all pair-wise comparisons among these fire regime attributes were significant. Borrowing from long-established practice in climate science, we defined “fire normals” to be the 26 year means of fire frequency, annual area burned, and the area under the cumulative probability distribution of dNBR. Fire severity normals were significantly lower when they were aggregated by year compared to aggregation by area. Cumulative severity distributions for each year were best modeled with Weibull functions (all 26 years, r2 ≥ 0.99; P < 0.001). Explicit modeling of the cumulative severity distributions may allow more comprehensive modeling of climate-severity and area-severity relationships. Together, the three metrics of number of fires, size of fires, and severity of fires provide land managers with a more comprehensive summary of a given fire year than any single metric.
","language":"English","publisher":"Springer Link","doi":"10.4996/fireecology.0702051","issn":"19339747","usgsCitation":"Lutz, J., Key, C.H., Kolden, C., Kane, J., and Van Wagtendonk, J.W., 2011, Fire frequency, area burned, and severity: A quantitative approach to defining a normal fire year: Fire Ecology, v. 7, no. 2, p. 51-65, https://doi.org/10.4996/fireecology.0702051.","productDescription":"15 p.","startPage":"51","endPage":"65","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":475064,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4996/fireecology.0702051","text":"Publisher Index Page"},{"id":246469,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218459,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.4996/fireecology.0702051"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yosemite","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.03881835937499,\n 44.040218713142146\n ],\n [\n -109.57763671875,\n 44.040218713142146\n ],\n [\n -109.57763671875,\n 44.99199795382439\n ],\n [\n -111.03881835937499,\n 44.99199795382439\n ],\n [\n -111.03881835937499,\n 44.040218713142146\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"7","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-08-01","publicationStatus":"PW","scienceBaseUri":"505a103ee4b0c8380cd53bb8","contributors":{"authors":[{"text":"Lutz, J.A.","contributorId":71792,"corporation":false,"usgs":true,"family":"Lutz","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":455019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Key, Carl H. carl_key@usgs.gov","contributorId":4138,"corporation":false,"usgs":true,"family":"Key","given":"Carl","email":"carl_key@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":455020,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kolden, C.A.","contributorId":54449,"corporation":false,"usgs":true,"family":"Kolden","given":"C.A.","affiliations":[],"preferred":false,"id":455018,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kane, J.T.","contributorId":44779,"corporation":false,"usgs":true,"family":"Kane","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":455017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Van Wagtendonk, Jan W. jan_van_wagtendonk@usgs.gov","contributorId":2648,"corporation":false,"usgs":true,"family":"Van Wagtendonk","given":"Jan","email":"jan_van_wagtendonk@usgs.gov","middleInitial":"W.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":455021,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70036046,"text":"70036046 - 2011 - Phenology for science, resource management, decision making, and education","interactions":[],"lastModifiedDate":"2012-03-12T17:22:04","indexId":"70036046","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Phenology for science, resource management, decision making, and education","docAbstract":"Fourth USA National Phenology Network (USA-NPN) Research Coordination Network (RCN) Annual Meeting and Stakeholders Workshop; Milwaukee, Wisconsin, 21-22 September 2010; Phenology, the study of recurring plant and animal life cycle events, is rapidly emerging as a fundamental approach for understanding how ecological systems respond to environmental variation and climate change. The USA National Phenology Network (USA-NPN; http://www.usanpn.org) is a large-scale network of governmental and nongovernmental organizations, academic institutions, resource management agencies, and tribes. The network is dedicated to conducting and promoting repeated and integrated plant and animal phenological observations, identifying linkages with other relevant biological and physical data sources, and developing and distributing the tools to analyze these data at local to national scales. The primary goal of the USA-NPN is to improve the ability of decision makers to design strategies for climate adaptation.","largerWorkTitle":"Eos","language":"English","doi":"10.1029/2011EO020004","issn":"00963941","usgsCitation":"Nolan, V., and Weltzin, J., 2011, Phenology for science, resource management, decision making, and education, in Eos, v. 92, no. 2, https://doi.org/10.1029/2011EO020004.","startPage":"15","costCenters":[],"links":[{"id":475318,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2011eo020004","text":"Publisher Index Page"},{"id":246456,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218446,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011EO020004"}],"volume":"92","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-01-11","publicationStatus":"PW","scienceBaseUri":"505a788be4b0c8380cd78713","contributors":{"authors":[{"text":"Nolan, V.P.","contributorId":56898,"corporation":false,"usgs":true,"family":"Nolan","given":"V.P.","affiliations":[],"preferred":false,"id":453767,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weltzin, J.F.","contributorId":18886,"corporation":false,"usgs":true,"family":"Weltzin","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":453766,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70036225,"text":"70036225 - 2011 - Quantification of a greenhouse hydrologic cycle from equatorial to polar latitudes: The mid-Cretaceous water bearer revisited","interactions":[],"lastModifiedDate":"2021-01-25T18:10:50.829732","indexId":"70036225","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Quantification of a greenhouse hydrologic cycle from equatorial to polar latitudes: The mid-Cretaceous water bearer revisited","docAbstract":"This study aims to investigate the global hydrologic cycle during the mid-Cretaceous greenhouse by utilizing the oxygen isotopic composition of pedogenic carbonates (calcite and siderite) as proxies for the oxygen isotopic composition of precipitation. The data set builds on the Aptian–Albian sphaerosiderite δ18O data set presented by Ufnar et al. (2002) by incorporating additional low latitude data including pedogenic and early meteoric diagenetic calcite δ18O. Ufnar et al. (2002) used the proxy data derived from the North American Cretaceous Western Interior Basin (KWIB) in a mass balance model to estimate precipitation–evaporation fluxes. We have revised this mass balance model to handle sphaerosiderite and calcite proxies, and to account for longitudinal travel by tropical air masses. We use empirical and general circulation model (GCM) temperature gradients for the mid-Cretaceous, and the empirically derived δ18O composition of groundwater as constraints in our mass balance model. Precipitation flux, evaporation flux, relative humidity, seawater composition, and continental feedback are adjusted to generate model calculated groundwater δ18O compositions (proxy for precipitation δ18O) that match the empirically-derived groundwater δ18O compositions to within ± 0.5‰. The model is calibrated against modern precipitation data sets.
Four different Cretaceous temperature estimates were used: the leaf physiognomy estimates of Wolfe and Upchurch (1987) and Spicer and Corfield (1992), the coolest and warmest Cretaceous estimates compiled by Barron (1983) and model outputs from the GENESIS-MOM GCM by Zhou et al. (2008). Precipitation and evaporation fluxes for all the Cretaceous temperature gradients utilized in the model are greater than modern precipitation and evaporation fluxes. Balancing the model also requires relative humidity in the subtropical dry belt to be significantly reduced. As expected calculated precipitation rates are all greater than modern precipitation rates. Calculated global average precipitation rates range from 371 mm/year to 1196 mm/year greater than modern precipitation rates. Model results support the hypothesis that increased rainout produces δ18O-depleted precipitation.
Sensitivity testing of the model indicates that the amount of water vapor in the air mass, and its origin and pathway, significantly affect the oxygen isotopic composition of precipitation. Precipitation δ18O is also sensitive to seawater δ18O and enriched tropical seawater was necessary to simulate proxy data (consistent with fossil and geologic evidence for a warmer and evaporatively enriched Tethys). Improved constraints in variables such as seawater δ18O can help improve boundary conditions for mid-Cretaceous climate simulations.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2011.05.027","issn":"00310182","usgsCitation":"Suarez, M., Gonzalez, L.A., and Ludvigson, G.A., 2011, Quantification of a greenhouse hydrologic cycle from equatorial to polar latitudes: The mid-Cretaceous water bearer revisited: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 307, no. 1-4, p. 301-312, https://doi.org/10.1016/j.palaeo.2011.05.027.","productDescription":"12 p.","startPage":"301","endPage":"312","costCenters":[],"links":[{"id":246306,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218307,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2011.05.027"}],"volume":"307","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a91a6e4b0c8380cd80398","contributors":{"authors":[{"text":"Suarez, M.B.","contributorId":18589,"corporation":false,"usgs":true,"family":"Suarez","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":454979,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gonzalez, Luis A.","contributorId":20922,"corporation":false,"usgs":true,"family":"Gonzalez","given":"Luis","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":454980,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ludvigson, Greg A.","contributorId":80803,"corporation":false,"usgs":true,"family":"Ludvigson","given":"Greg","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":454981,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70036430,"text":"70036430 - 2011 - Modelling detectability of kiore (Rattus exulans) on Aguiguan, Mariana Islands, to inform possible eradication and monitoring efforts","interactions":[],"lastModifiedDate":"2021-01-11T20:10:34.36895","indexId":"70036430","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2867,"text":"New Zealand Journal of Ecology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Modelling detectability of kiore (Rattus exulans) on Aguiguan, Mariana Islands, to inform possible eradication and monitoring efforts","title":"Modelling detectability of kiore (Rattus exulans) on Aguiguan, Mariana Islands, to inform possible eradication and monitoring efforts","docAbstract":"Estimating the detection probability of introduced organisms during the pre-monitoring phase of an eradication effort can be extremely helpful in informing eradication and post-eradication monitoring efforts, but this step is rarely taken. We used data collected during 11 nights of mark-recapture sampling on Aguiguan, Mariana Islands, to estimate introduced kiore (Rattus exulans Peale) density and detection probability, and evaluated factors affecting detectability to help inform possible eradication efforts. Modelling of 62 captures of 48 individuals resulted in a model-averaged density estimate of 55 kiore/ha. Kiore detection probability was best explained by a model allowing neophobia to diminish linearly (i.e. capture probability increased linearly) until occasion 7, with additive effects of sex and cumulative rainfall over the prior 48 hours. Detection probability increased with increasing rainfall and females were up to three times more likely than males to be trapped. In this paper, we illustrate the type of information that can be obtained by modelling mark-recapture data collected during pre-eradication monitoring and discuss the potential of using these data to inform eradication and post-eradication monitoring efforts.
","largerWorkTitle":"New Zealand Journal of Ecology","language":"English","publisher":"New Zealand Ecological Society.","issn":"01106465","usgsCitation":"Adams, A., Stanford, J., Wiewel, A., and Rodda, G., 2011, Modelling detectability of kiore (Rattus exulans) on Aguiguan, Mariana Islands, to inform possible eradication and monitoring efforts: New Zealand Journal of Ecology, v. 35, no. 2, p. 145-152.","productDescription":"8 p.","startPage":"145","endPage":"152","costCenters":[],"links":[{"id":246482,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mariana Islands","otherGeospatial":"Aguiguan","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 145.04150390625,\n 14.562317701914855\n ],\n [\n 146.326904296875,\n 14.562317701914855\n ],\n [\n 146.326904296875,\n 15.728813770533966\n ],\n [\n 145.04150390625,\n 15.728813770533966\n ],\n [\n 145.04150390625,\n 14.562317701914855\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"35","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c65e4b0c8380cd6fc72","contributors":{"authors":[{"text":"Adams, A.A.Y.","contributorId":50369,"corporation":false,"usgs":true,"family":"Adams","given":"A.A.Y.","email":"","affiliations":[],"preferred":false,"id":456109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanford, J.W.","contributorId":90963,"corporation":false,"usgs":true,"family":"Stanford","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":456110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wiewel, A.S.","contributorId":8682,"corporation":false,"usgs":true,"family":"Wiewel","given":"A.S.","email":"","affiliations":[],"preferred":false,"id":456108,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rodda, G.H.","contributorId":103998,"corporation":false,"usgs":true,"family":"Rodda","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":456111,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70036841,"text":"70036841 - 2011 - Spatial variability of biotic and abiotic tree establishment constraints across a treeline ecotone in the Alaska Range","interactions":[],"lastModifiedDate":"2020-12-18T18:49:49.518611","indexId":"70036841","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Spatial variability of biotic and abiotic tree establishment constraints across a treeline ecotone in the Alaska Range","docAbstract":"Throughout interior Alaska (USA), a gradual warming trend in mean monthly temperatures occurred over the last few decades (∼∼2-–4°°C). The accompanying increases in woody vegetation at many alpine treeline (hereafter treeline) locations provided an opportunity to examine how biotic and abiotic local site conditions interact to control tree establishment patterns during warming. We devised a landscape ecological approach to investigate these relationships at an undisturbed treeline in the Alaska Range. We identified treeline changes between 1953 (aerial photography) and 2005 (satellite imagery) in a geographic information system (GIS) and linked them with corresponding local site conditions derived from digital terrain data, ancillary climate data, and distance to 1953 trees. Logistic regressions enabled us to rank the importance of local site conditions in controlling tree establishment. We discovered a spatial transition in the importance of tree establishment controls. The biotic variable (proximity to 1953 trees) was the most important tree establishment predictor below the upper tree limit, providing evidence of response lags with the abiotic setting and suggesting that tree establishment is rarely in equilibrium with the physical environment or responding directly to warming. Elevation and winter sun exposure were important predictors of tree establishment at the upper tree limit, but proximity to trees persisted as an important tertiary predictor, indicating that tree establishment may achieve equilibrium with the physical environment. However, even here, influences from the biotic variable may obscure unequivocal correlations with the abiotic setting (including temperature). Future treeline expansion will likely be patchy and challenging to predict without considering the spatial variability of influences from biotic and abiotic local site conditions.
","largerWorkTitle":"Ecology","language":"English","doi":"10.1890/09-1725.1","issn":"00129658","usgsCitation":"Stueve, K., Isaacs, R., Tyrrell, L., and Densmore, R., 2011, Spatial variability of biotic and abiotic tree establishment constraints across a treeline ecotone in the Alaska Range: Ecology, v. 92, no. 2, p. 496-506, https://doi.org/10.1890/09-1725.1.","productDescription":"11 p.","startPage":"496","endPage":"506","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":245831,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217859,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/09-1725.1"}],"country":"United States","state":"Alaska","otherGeospatial":"Denali National Park and Preserve","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -149.78759765625,\n 62.75472592723178\n ],\n [\n -148.765869140625,\n 63.27812271092345\n ],\n [\n -148.68347167968747,\n 63.70715578169752\n ],\n [\n -148.9306640625,\n 64.19681461100495\n ],\n [\n -150.00732421875,\n 64.65211223878967\n ],\n [\n -153.34716796875,\n 63.95667333648766\n ],\n [\n -153.45703125,\n 63.05495931065107\n ],\n [\n -153.5009765625,\n 62.34960927573042\n ],\n [\n -152.0947265625,\n 62.2679226294176\n ],\n [\n -151.1279296875,\n 62.57310578449978\n ],\n [\n -149.78759765625,\n 62.75472592723178\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"92","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b94b2e4b08c986b31abf7","contributors":{"authors":[{"text":"Stueve, K.M.","contributorId":11860,"corporation":false,"usgs":true,"family":"Stueve","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":458104,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Isaacs, R.E.","contributorId":40833,"corporation":false,"usgs":true,"family":"Isaacs","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":458105,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tyrrell, L.E.","contributorId":41265,"corporation":false,"usgs":true,"family":"Tyrrell","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":458106,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Densmore, R.V.","contributorId":72953,"corporation":false,"usgs":true,"family":"Densmore","given":"R.V.","email":"","affiliations":[],"preferred":false,"id":458107,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70036048,"text":"70036048 - 2011 - Estimating trends in alligator populations from nightlight survey data","interactions":[],"lastModifiedDate":"2021-02-03T18:57:14.263826","indexId":"70036048","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Estimating trends in alligator populations from nightlight survey data","docAbstract":"Nightlight surveys are commonly used to evaluate status and trends of crocodilian populations, but imperfect detection caused by survey- and location-specific factors makes it difficult to draw population inferences accurately from uncorrected data. We used a two-stage hierarchical model comprising population abundance and detection probability to examine recent abundance trends of American alligators (Alligator mississippiensis) in subareas of Everglades wetlands in Florida using nightlight survey data. During 2001–2008, there were declining trends in abundance of small and/or medium sized animals in a majority of subareas, whereas abundance of large sized animals had either demonstrated an increased or unclear trend. For small and large sized class animals, estimated detection probability declined as water depth increased. Detection probability of small animals was much lower than for larger size classes. The declining trend of smaller alligators may reflect a natural population response to the fluctuating environment of Everglades wetlands under modified hydrology. It may have negative implications for the future of alligator populations in this region, particularly if habitat conditions do not favor recruitment of offspring in the near term. Our study provides a foundation to improve inferences made from nightlight surveys of other crocodilian populations.
","language":"English","publisher":"Springer Link","doi":"10.1007/s13157-010-0120-0","issn":"02775212","usgsCitation":"Fujisaki, I., Mazzotti, F., Dorazio, R., Rice, K.G., Cherkiss, M., and Jeffery, B., 2011, Estimating trends in alligator populations from nightlight survey data: Wetlands, v. 31, no. 1, p. 147-155, https://doi.org/10.1007/s13157-010-0120-0.","productDescription":"9 p.","startPage":"147","endPage":"155","costCenters":[],"links":[{"id":246489,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218474,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s13157-010-0120-0"}],"country":"United States","state":"Florida","otherGeospatial":"South Florida","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.2109375,\n 25.760319754713887\n ],\n [\n -80.9033203125,\n 25.264568475331583\n ],\n [\n -80.8154296875,\n 25.12539261151203\n ],\n [\n -80.2001953125,\n 25.363882272740256\n ],\n [\n -80.26611328125,\n 26.194876675795218\n ],\n [\n -80.37597656249999,\n 26.686729520004036\n ],\n [\n -81.1669921875,\n 26.64745870265938\n ],\n [\n -80.9912109375,\n 25.859223554761407\n ],\n [\n -81.2109375,\n 25.760319754713887\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"31","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-11","publicationStatus":"PW","scienceBaseUri":"505a0b6be4b0c8380cd526f7","contributors":{"authors":[{"text":"Fujisaki, Ikuko","contributorId":38359,"corporation":false,"usgs":false,"family":"Fujisaki","given":"Ikuko","affiliations":[],"preferred":false,"id":453776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mazzotti, F.J.","contributorId":10136,"corporation":false,"usgs":true,"family":"Mazzotti","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":453774,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dorazio, R.M. 0000-0003-2663-0468","orcid":"https://orcid.org/0000-0003-2663-0468","contributorId":23475,"corporation":false,"usgs":true,"family":"Dorazio","given":"R.M.","affiliations":[],"preferred":false,"id":453775,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rice, Kenneth G. 0000-0001-8282-1088 krice@usgs.gov","orcid":"https://orcid.org/0000-0001-8282-1088","contributorId":117,"corporation":false,"usgs":true,"family":"Rice","given":"Kenneth","email":"krice@usgs.gov","middleInitial":"G.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":453777,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cherkiss, M. 0000-0002-7802-6791","orcid":"https://orcid.org/0000-0002-7802-6791","contributorId":103496,"corporation":false,"usgs":true,"family":"Cherkiss","given":"M.","affiliations":[],"preferred":false,"id":453779,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jeffery, B.","contributorId":53638,"corporation":false,"usgs":true,"family":"Jeffery","given":"B.","email":"","affiliations":[],"preferred":false,"id":453778,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70035461,"text":"70035461 - 2011 - Geodynamic interpretation of the 40Ar/39Ar dating of ophiolitic and arc-related mafics and metamafics of the northern part of the Anadyr-Koryak region","interactions":[],"lastModifiedDate":"2020-10-03T16:17:02.259076","indexId":"70035461","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1826,"text":"Geotectonics","onlineIssn":"1556-1976","printIssn":"0016-8521","active":true,"publicationSubtype":{"id":10}},"title":"Geodynamic interpretation of the 40Ar/39Ar dating of ophiolitic and arc-related mafics and metamafics of the northern part of the Anadyr-Koryak region","docAbstract":"Isotope datings of amphibole-bearing mafics and metamafics in the northern part of the Anadyr-Koryak region allow clarification of the time of magmatic and metamorphic processes, which are synchronous with certain stages of the geodynamic development of the northwest segment of the Pacific mobile belt in the Phanerozoic. To define the 40Ar/39Ar age of amphiboles, eight samples of amphibole gabbroids and metamafics were selected during field work from five massifs representing ophiolites and mafic plutons of the island arc. Rocks from terranes of three foldbelts: 1) Pekulnei (Chukotka region), 2) Ust-Belaya (West Koryak region), and 3) the Tamvatnei and El’gevayam subterranes of the Mainits terrane (Koryak-Kamchatka region), were studied. The isotope investigations enabled us to divide the studied amphiboles into two groups varying in rock petrographic features. The first was represented by gabbroids of the Svetlorechensk massif of the Pekulnei Range and by ophiolites of the Tamvatnei Mts.; their magmatic amphiboles show the distribution of argon isotopes in the form of clearly distinguished plateau with an age ranging within 120–129 Ma. The second group includes metamorphic amphiboles of metagabbroids and apogabbro amphibolites of the Ust-Belaya Mts., Pekulnei and Kenkeren ranges (El’gevayam subterranes). Their age spectra show loss of argon and do not provide well defined plateaus the datings obtained for them are interpreted as minimum ages. Dates of amphiboles from the metagabbro of the upper tectonic plate of the Ust-Belaya allochthon points to metamorphism in the suprasubduction environment in the fragment of Late Neoproterozoic oceanic lithosphere in Middle-Late Devonian time, long before the Uda-Murgal island arc system was formed. The amphibolite metamorphism in the dunite-clinopyroxenite-metagabbro Pekulnei sequence was dated to occur at the Permian-Triassic boundary. The age of amphiboles from gabbrodiorites of the Kenkeren Range was dated to be Early Jurassic that confirmed their assignment to the El’gevayam volcanic-plutonic assemblage. These data are consistent with geological concepts and make more precise the available age dates. Neocomian-Aptian 40Ar/39Ar age of amphibolites from the Pekulnei and Tamvatnei gabbroids make evident that mafics of these terranes (varying in geodynamic formation settings and in petrogenesis) were generated in later stages of the development of the West Pekulnei and Mainits-Algan Middle-Late Jurassic-Early Cretaceous island arc systems, presumably due to breakup of island arcs in the Neocomian.
Monoterpenes are an important class of biogenic hydrocarbons that influence ambient air quality and are a principle source of secondary organic aerosol (SOA). Emitted from vegetation, monoterpenes are a product of photosynthesis and act as a response to a variety of environmental factors. Most parameterizations of monoterpene emissions are based on clear weather models that do not take into account episodic conditions that can drastically change production and release rates into the atmosphere. Here, the monoterpene dataset from the rural Thompson Farm measurement site in Durham, New Hampshire is examined in the context of a set of known severe storm events. While some storm systems had a negligible influence on ambient monoterpene mixing ratios, the average storm event increased mixing ratios by 0.59 ± 0.21 ppbv, a factor of 93 % above pre-storm levels. In some events, mixing ratios reached the 10’s of ppbv range and persisted overnight. These mixing ratios correspond to increases in the monoterpene emission rate, ranging from 120 to 1240 g km−2 h −1 compared to an estimated clear weather rate of 116 to 193 g km−2 h −1 . Considering the regularity of storm events over most forested areas, this could be an important factor to consider when modeling global monoterpene emissions and their resulting influence on the formation of organic aerosols.
","language":"English","publisher":"European Geosciences Union","doi":"10.5194/acpd-11-20631-2011","issn":"16807367","usgsCitation":"Haase, K.B., Jordan, C., Mentis, E., Cottrell, L., Mayne, H., Talbot, R., and Sive, B., 2011, Changes in monoterpene mixing ratios during summer storms in rural New Hampshire (USA): Atmospheric Chemistry and Physics Discussions, v. 11, no. 7, p. 20631-20665, https://doi.org/10.5194/acpd-11-20631-2011.","productDescription":"35 p.","startPage":"20631","endPage":"20665","costCenters":[],"links":[{"id":475295,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/acpd-11-20631-2011","text":"Publisher Index Page"},{"id":245627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217669,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/acpd-11-20631-2011"}],"country":"United States","state":"New 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B.C.","contributorId":66518,"corporation":false,"usgs":true,"family":"Sive","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":456704,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70036958,"text":"70036958 - 2011 - Monitoring carnivore populations at the landscape scale: occupancy modelling of tigers from sign surveys","interactions":[],"lastModifiedDate":"2014-07-29T10:31:46","indexId":"70036958","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring carnivore populations at the landscape scale: occupancy modelling of tigers from sign surveys","docAbstract":"1. Assessing spatial distributions of threatened large carnivores at landscape scales poses formidable challenges because of their rarity and elusiveness. As a consequence of logistical constraints, investigators typically rely on sign surveys. Most survey methods, however, do not explicitly address the central problem of imperfect detections of animal signs in the field, leading to underestimates of true habitat occupancy and distribution.
\n2. We assessed habitat occupancy for a tiger Panthera tigris metapopulation across a c. 38 000-km2 landscape in India, employing a spatially replicated survey to explicitly address imperfect detections. Ecological predictions about tiger presence were confronted with sign detection data generated from occupancy sampling of 205 sites, each of 188 km2.
\n3. A recent occupancy model that considers Markovian dependency among sign detections on spatial replicates performed better than the standard occupancy model (ΔAIC = 184·9). A formulation of this model that fitted the data best showed that density of ungulate prey and levels of human disturbance were key determinants of local tiger presence. Model averaging resulted in a replicate-level detection probability [inline image] = 0·17 (0·17) for signs and a tiger habitat occupancy estimate of [inline image] = 0·665 (0·0857) or 14 076 (1814) km2 of potential habitat of 21 167 km2. In contrast, a traditional presence-versus-absence approach underestimated occupancy by 47%. Maps of probabilities of local site occupancy clearly identified tiger source populations at higher densities and matched observed tiger density variations, suggesting their potential utility for population assessments at landscape scales.
\n4. Synthesis and applications. Landscape-scale sign surveys can efficiently assess large carnivore spatial distributions and elucidate the factors governing their local presence, provided ecological and observation processes are both explicitly modelled. Occupancy sampling using spatial replicates can be used to reliably and efficiently identify tiger population sources and help monitor metapopulations. Our results reinforce earlier findings that prey depletion and human disturbance are key drivers of local tiger extinctions and tigers can persist even in human-dominated landscapes through effective protection of source populations. Our approach facilitates efficient targeting of tiger conservation interventions and, more generally, provides a basis for the reliable integration of large carnivore monitoring data between local and landscape scales.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Blackwell Scientific Publications","publisherLocation":"Oxford, United Kingdom","doi":"10.1111/j.1365-2664.2011.02002.x","issn":"00218901","usgsCitation":"Karanth, K.U., Gopalaswamy, A., Kumar, N.S., Vaidyanathan, S., Nichols, J., and MacKenzie, D.I., 2011, Monitoring carnivore populations at the landscape scale: occupancy modelling of tigers from sign surveys: Journal of Applied Ecology, v. 48, no. 4, p. 1048-1056, https://doi.org/10.1111/j.1365-2664.2011.02002.x.","productDescription":"9 p.","startPage":"1048","endPage":"1056","numberOfPages":"9","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":475282,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-2664.2011.02002.x","text":"Publisher Index Page"},{"id":245807,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217835,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2664.2011.02002.x"}],"country":"India","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 72.01,10.83 ], [ 72.01,19.94 ], [ 79.91,19.94 ], [ 79.91,10.83 ], [ 72.01,10.83 ] ] ] } } ] }","volume":"48","issue":"4","noUsgsAuthors":false,"publicationDate":"2011-05-11","publicationStatus":"PW","scienceBaseUri":"505a5d93e4b0c8380cd70481","contributors":{"authors":[{"text":"Karanth, Kota Ullas","contributorId":42815,"corporation":false,"usgs":true,"family":"Karanth","given":"Kota","email":"","middleInitial":"Ullas","affiliations":[],"preferred":false,"id":458667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gopalaswamy, Arjun M.","contributorId":12167,"corporation":false,"usgs":true,"family":"Gopalaswamy","given":"Arjun M.","affiliations":[],"preferred":false,"id":458665,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kumar, Narayanarao Samba","contributorId":102307,"corporation":false,"usgs":true,"family":"Kumar","given":"Narayanarao","email":"","middleInitial":"Samba","affiliations":[],"preferred":false,"id":458669,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vaidyanathan, Srinivas","contributorId":15444,"corporation":false,"usgs":true,"family":"Vaidyanathan","given":"Srinivas","email":"","affiliations":[],"preferred":false,"id":458666,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nichols, James D. 0000-0002-7631-2890 jnichols@usgs.gov","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":405,"corporation":false,"usgs":true,"family":"Nichols","given":"James D.","email":"jnichols@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":458664,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"MacKenzie, Darryl I.","contributorId":94436,"corporation":false,"usgs":true,"family":"MacKenzie","given":"Darryl","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":458668,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70036530,"text":"70036530 - 2011 - A novel member of the family Hepeviridae from cutthroat trout (Oncorhynchus clarkii)","interactions":[],"lastModifiedDate":"2012-12-30T20:14:06","indexId":"70036530","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3699,"text":"Virus Research","active":true,"publicationSubtype":{"id":10}},"title":"A novel member of the family Hepeviridae from cutthroat trout (Oncorhynchus clarkii)","docAbstract":"Beginning in 1988, the Chinook salmon embryo (CHSE-214) cell line was used to isolate a novel virus from spawning adult trout in the state of California, USA. Termed the cutthroat trout (Oncorhynchus clarkii) virus (CTV), the small, round virus was not associated with disease, but was subsequently found to be present in an increasing number of trout populations in the western USA, likely by a combination of improved surveillance activities and the shipment of infected eggs to new locations. Here, we report that the full length genome of the 1988 Heenan Lake isolate of CTV consisted of 7269 nucleotides of positive-sense, single-stranded RNA beginning with a 5' untranslated region (UTR), followed by three open reading frames (ORFs), a 3' UTR and ending in a polyA tail. The genome of CTV was similar in size and organization to that of Hepatitis E virus (HEV) with which it shared the highest nucleotide and amino acid sequence identities. Similar to the genomes of human, rodent or avian hepeviruses, ORF 1 encoded a large, non-structural polyprotein that included conserved methyltransferase, protease, helicase and polymerase domains, while ORF 2 encoded the structural capsid protein and ORF 3 the phosphoprotein. Together, our data indicated that CTV was clearly a member of the family Hepeviridae, although the level of amino acid sequence identity with the ORFs of mammalian or avian hepeviruses (13-27%) may be sufficiently low to warrant the creation of a novel genus. We also performed a phylogenetic analysis using a 262. nt region within ORF 1 for 63 isolates of CTV obtained from seven species of trout reared in various geographic locations in the western USA. While the sequences fell into two genetic clades, the overall nucleotide diversity was low (less than 8.4%) and many isolates differed by only 1-2 nucleotides, suggesting an epidemiological link. Finally, we showed that CTV was able to form persistently infected cultures of the CHSE-214 cell line that may have use in research on the biology or treatment of hepevirus infections of humans or other animals.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Virus Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.virusres.2011.03.019","issn":"01681702","usgsCitation":"Batts, W., Yun, S., Hedrick, R., and Winton, J., 2011, A novel member of the family Hepeviridae from cutthroat trout (Oncorhynchus clarkii): Virus Research, v. 158, no. 1-2, p. 116-123, https://doi.org/10.1016/j.virusres.2011.03.019.","productDescription":"8 p.","startPage":"116","endPage":"123","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":217809,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.virusres.2011.03.019"},{"id":245781,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"158","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4c7e4b0c8380cd4690f","contributors":{"authors":[{"text":"Batts, William","contributorId":101337,"corporation":false,"usgs":true,"family":"Batts","given":"William","affiliations":[],"preferred":false,"id":456575,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yun, Susan","contributorId":7540,"corporation":false,"usgs":true,"family":"Yun","given":"Susan","affiliations":[],"preferred":false,"id":456572,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hedrick, Ronald","contributorId":17455,"corporation":false,"usgs":true,"family":"Hedrick","given":"Ronald","affiliations":[],"preferred":false,"id":456573,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Winton, James","contributorId":53897,"corporation":false,"usgs":true,"family":"Winton","given":"James","affiliations":[],"preferred":false,"id":456574,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70036269,"text":"70036269 - 2011 - Spatial connectivity in a highly heterogeneous aquifer: From cores to preferential flow paths","interactions":[],"lastModifiedDate":"2021-01-20T18:13:23.674799","indexId":"70036269","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Spatial connectivity in a highly heterogeneous aquifer: From cores to preferential flow paths","docAbstract":"This study investigates connectivity in a small portion of the extremely heterogeneous aquifer at the Macrodispersion Experiment (MADE) site in Columbus, Mississippi. A total of 19 fully penetrating soil cores were collected from a rectangular grid of 4 m by 4 m. Detailed grain size analysis was performed on 5 cm segments of each core, yielding 1740 hydraulic conductivity (K) estimates. Three different geostatistical simulation methods were used to generate 3‐D conditional realizations of the K field for the sampled block. Particle tracking calculations showed that the fastest particles, as represented by the first 5% to arrive, converge along preferential flow paths and exit the model domain within preferred areas. These 5% fastest flow paths accounted for about 40% of the flow. The distribution of preferential flow paths and particle exit locations is clearly influenced by the occurrence of clusters formed by interconnected cells with K equal to or greater than the 0.9 decile of the data distribution (10% of the volume). The fraction of particle paths within the high‐K clusters ranges from 43% to 69%. In variogram‐based K fields, some of the fastest paths are through media with lower K values, suggesting that transport connectivity may not require fully connected zones of relatively homogenous K. The high degree of flow and transport connectivity was confirmed by the values of two groups of connectivity indicators. In particular, the ratio between effective and geometric mean K (on average, about 2) and the ratio between the average arrival time and the arrival time of the fastest particles (on average, about 9) are consistent with flow and advective transport behavior characterized by channeling along preferential flow paths.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2009WR008966","issn":"00431397","usgsCitation":"Bianchi, M., Zheng, C., Wilson, C., Tick, G., Liu, G., and Gorelick, S., 2011, Spatial connectivity in a highly heterogeneous aquifer: From cores to preferential flow paths: Water Resources Research, v. 47, no. 5, W05524, 18 p., https://doi.org/10.1029/2009WR008966.","productDescription":"W05524, 18 p.","costCenters":[],"links":[{"id":475335,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009wr008966","text":"Publisher Index Page"},{"id":246542,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218522,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2009WR008966"}],"volume":"47","issue":"5","noUsgsAuthors":false,"publicationDate":"2011-05-19","publicationStatus":"PW","scienceBaseUri":"505b945ee4b08c986b31aa33","contributors":{"authors":[{"text":"Bianchi, M.","contributorId":39626,"corporation":false,"usgs":true,"family":"Bianchi","given":"M.","email":"","affiliations":[],"preferred":false,"id":455193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zheng, C.","contributorId":39976,"corporation":false,"usgs":true,"family":"Zheng","given":"C.","email":"","affiliations":[],"preferred":false,"id":455194,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, C.","contributorId":16260,"corporation":false,"usgs":true,"family":"Wilson","given":"C.","affiliations":[],"preferred":false,"id":455191,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tick, G.R.","contributorId":60065,"corporation":false,"usgs":true,"family":"Tick","given":"G.R.","affiliations":[],"preferred":false,"id":455195,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Liu, Gaisheng","contributorId":15158,"corporation":false,"usgs":true,"family":"Liu","given":"Gaisheng","email":"","affiliations":[],"preferred":false,"id":455190,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gorelick, S.M.","contributorId":21589,"corporation":false,"usgs":true,"family":"Gorelick","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":455192,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70036523,"text":"70036523 - 2011 - Multiplets: Their behavior and utility at dacitic and andesitic volcanic centers","interactions":[],"lastModifiedDate":"2012-12-12T11:01:30","indexId":"70036523","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Multiplets: Their behavior and utility at dacitic and andesitic volcanic centers","docAbstract":"Multiplets, or groups of earthquakes with similar waveforms, are commonly observed at volcanoes, particularly those exhibiting unrest. Using triggered seismic data from the 1980-1986 Mount St. Helens (MSH) eruption, we have constructed a catalog of multiplet occurrence. Our analysis reveals that the occurrence of multiplets is related, at least in part, to the viscosity of the magma. We also constructed catalogs of multiplet occurrence using continuous seismic data from the 2004 eruption at MSH and 2007 eruption at Bezymianny Volcano, Russia. Prior to explosions at MSH in 2004 and Bezymianny in 2007, the multiplet proportion of total seismicity (MPTS) declined, while the average amplitudes and standard deviations of the average amplitude increased. The life spans of multiplets (time between the first and last event) were also shorter prior to explosions than during passive lava extrusion. Dome-forming eruptions that include a partially solidified plug, like MSH (1983-1986 and 2004-2008), often possess multiplets with longer life spans and MPTS values exceeding 50%. Conceptually, the relatively unstable environment prior to explosions is characterized by large and variable stress gradients brought about by rapidly changing overpressures within the conduit. We infer that such complex stress fields affect the number of concurrent families, MPTS, average amplitude, and standard deviation of the amplitude of the multiplets. We also argue that multiplet detection may be an important new monitoring tool for determining the timing of explosions and in forecasting the type of eruption.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2010JB007924","issn":"01480227","usgsCitation":"Thelen, W., Malone, S., and West, M., 2011, Multiplets: Their behavior and utility at dacitic and andesitic volcanic centers: Journal of Geophysical Research B: Solid Earth, v. 116, no. 8, 16 p.; B08210, https://doi.org/10.1029/2010JB007924.","productDescription":"16 p.; B08210","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":475293,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2010jb007924","text":"Publisher Index Page"},{"id":217727,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010JB007924"},{"id":245689,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"116","issue":"8","noUsgsAuthors":false,"publicationDate":"2011-08-23","publicationStatus":"PW","scienceBaseUri":"505a6090e4b0c8380cd71547","contributors":{"authors":[{"text":"Thelen, W.","contributorId":15026,"corporation":false,"usgs":true,"family":"Thelen","given":"W.","email":"","affiliations":[],"preferred":false,"id":456546,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Malone, S.","contributorId":49512,"corporation":false,"usgs":true,"family":"Malone","given":"S.","affiliations":[],"preferred":false,"id":456547,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"West, M.","contributorId":54729,"corporation":false,"usgs":true,"family":"West","given":"M.","email":"","affiliations":[],"preferred":false,"id":456548,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70036522,"text":"70036522 - 2011 - Adapting generalization tools to physiographic diversity for the united states national hydrography dataset","interactions":[],"lastModifiedDate":"2012-03-12T17:22:01","indexId":"70036522","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1191,"text":"Cartography and Geographic Information Science","active":true,"publicationSubtype":{"id":10}},"title":"Adapting generalization tools to physiographic diversity for the united states national hydrography dataset","docAbstract":"This paper reports on generalization and data modeling to create reduced scale versions of the National Hydrographic Dataset (NHD) for dissemination through The National Map, the primary data delivery portal for USGS. Our approach distinguishes local differences in physiographic factors, to demonstrate that knowledge about varying terrain (mountainous, hilly or flat) and varying climate (dry or humid) can support decisions about algorithms, parameters, and processing sequences to create generalized, smaller scale data versions which preserve distinct hydrographic patterns in these regions. We work with multiple subbasins of the NHD that provide a range of terrain and climate characteristics. Specifically tailored generalization sequences are used to create simplified versions of the high resolution data, which was compiled for 1:24,000 scale mapping. Results are evaluated cartographically and metrically against a medium resolution benchmark version compiled for 1:100,000, developing coefficients of linear and areal correspondence.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cartography and Geographic Information Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1559/15230406382289","issn":"15230406","usgsCitation":"Buttenfield, B., Stanislawski, L., and Brewer, C., 2011, Adapting generalization tools to physiographic diversity for the united states national hydrography dataset: Cartography and Geographic Information Science, v. 38, no. 3, p. 289-301, https://doi.org/10.1559/15230406382289.","startPage":"289","endPage":"301","numberOfPages":"13","costCenters":[],"links":[{"id":217726,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1559/15230406382289"},{"id":245688,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e6e2e4b0c8380cd476cd","contributors":{"authors":[{"text":"Buttenfield, B.P.","contributorId":94895,"corporation":false,"usgs":true,"family":"Buttenfield","given":"B.P.","affiliations":[],"preferred":false,"id":456545,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanislawski, L.V.","contributorId":73442,"corporation":false,"usgs":true,"family":"Stanislawski","given":"L.V.","affiliations":[],"preferred":false,"id":456543,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brewer, C.A.","contributorId":87786,"corporation":false,"usgs":true,"family":"Brewer","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":456544,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035836,"text":"70035836 - 2011 - Comparison of Bayesian clustering and edge detection methods for inferring boundaries in landscape genetics","interactions":[],"lastModifiedDate":"2021-02-10T13:20:36.400367","indexId":"70035836","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2059,"text":"International Journal of Molecular Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of Bayesian clustering and edge detection methods for inferring boundaries in landscape genetics","docAbstract":"Recently, techniques available for identifying clusters of individuals or boundaries between clusters using genetic data from natural populations have expanded rapidly. Consequently, there is a need to evaluate these different techniques. We used spatially-explicit simulation models to compare three spatial Bayesian clustering programs and two edge detection methods. Spatially-structured populations were simulated where a continuous population was subdivided by barriers. We evaluated the ability of each method to correctly identify boundary locations while varying: (i) time after divergence, (ii) strength of isolation by distance, (iii) level of genetic diversity, and (iv) amount of gene flow across barriers. To further evaluate the methods’ effectiveness to detect genetic clusters in natural populations, we used previously published data on North American pumas and a European shrub. Our results show that with simulated and empirical data, the Bayesian spatial clustering algorithms outperformed direct edge detection methods. All methods incorrectly detected boundaries in the presence of strong patterns of isolation by distance. Based on this finding, we support the application of Bayesian spatial clustering algorithms for boundary detection in empirical datasets, with necessary tests for the influence of isolation by distance
","language":"English","publisher":"MDPI","doi":"10.3390/ijms12020865","issn":"14220067","usgsCitation":"Safner, T., Miller, M.P., McRae, B., Fortin, M., and Manel, S., 2011, Comparison of Bayesian clustering and edge detection methods for inferring boundaries in landscape genetics: International Journal of Molecular Sciences, v. 12, no. 2, p. 865-889, https://doi.org/10.3390/ijms12020865.","productDescription":"25 p.","startPage":"865","endPage":"889","costCenters":[{"id":38131,"text":"WMA - Office of Planning and Programming","active":true,"usgs":true}],"links":[{"id":475131,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/ijms12020865","text":"Publisher Index Page"},{"id":244276,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-01-25","publicationStatus":"PW","scienceBaseUri":"5059f840e4b0c8380cd4cf8c","contributors":{"authors":[{"text":"Safner, T.","contributorId":35980,"corporation":false,"usgs":true,"family":"Safner","given":"T.","email":"","affiliations":[],"preferred":false,"id":452667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Mark P. 0000-0003-1045-1772 mpmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-1045-1772","contributorId":1967,"corporation":false,"usgs":true,"family":"Miller","given":"Mark","email":"mpmiller@usgs.gov","middleInitial":"P.","affiliations":[{"id":38131,"text":"WMA - Office of Planning and Programming","active":true,"usgs":true}],"preferred":true,"id":452669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McRae, B.H.","contributorId":41658,"corporation":false,"usgs":true,"family":"McRae","given":"B.H.","email":"","affiliations":[],"preferred":false,"id":452668,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fortin, M.-J.","contributorId":96489,"corporation":false,"usgs":true,"family":"Fortin","given":"M.-J.","email":"","affiliations":[],"preferred":false,"id":452670,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Manel, S.","contributorId":23785,"corporation":false,"usgs":true,"family":"Manel","given":"S.","affiliations":[],"preferred":false,"id":452666,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035621,"text":"70035621 - 2011 - Innate immune response development in nestling tree swallows","interactions":[],"lastModifiedDate":"2021-02-17T21:29:33.666168","indexId":"70035621","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3784,"text":"Wilson Journal of Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Innate immune response development in nestling tree swallows","docAbstract":"We tracked the development of innate immunity in nestling Tree Swallows (Tachycineta bicolor) and compared it to that of adults using blood drawn from nestlings during days 6, 12, and 18 of the ∼20-day nestling period and from adults. Innate immunity was characterized using an in vitro assay of the ability of whole blood to kill Escherichia coli. The ability of whole blood to kill E. coli increased as nestlings matured. Neither this component of innate immunity nor right wing chord length on day18 were as developed as in adults indicating that development of the innate immune system and growth both continued after fledging. Narrow sense heritability analyses suggest that females with strong immune responses produced nestlings with strong immune responses. These data suggest nestling Tree Swallows allocated sufficient energy to support rapid growth to enable fledging by day 18, but that further development of innate immunity occurred post-fledging.
","language":"English","publisher":"BioOne","doi":"10.1676/10-197.1","issn":"15594491","usgsCitation":"Stambaugh, T., Houdek, B., Lombardo, M., Thorpe, P., and Hahn, C., 2011, Innate immune response development in nestling tree swallows: Wilson Journal of Ornithology, v. 123, no. 4, p. 779-787, https://doi.org/10.1676/10-197.1.","productDescription":"9 p.","startPage":"779","endPage":"787","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":243882,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216043,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1676/10-197.1"}],"country":"United States","state":"Michigan","city":"Allendale","otherGeospatial":"Grand Valley State University","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -85.96973419189453,\n 42.95692504577836\n ],\n [\n -85.94098091125487,\n 42.95692504577836\n ],\n [\n -85.94098091125487,\n 42.981293052538355\n ],\n [\n -85.96973419189453,\n 42.981293052538355\n ],\n [\n -85.96973419189453,\n 42.95692504577836\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"123","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3bfae4b0c8380cd6298c","contributors":{"authors":[{"text":"Stambaugh, T.","contributorId":6448,"corporation":false,"usgs":true,"family":"Stambaugh","given":"T.","email":"","affiliations":[],"preferred":false,"id":451520,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houdek, B.J.","contributorId":32004,"corporation":false,"usgs":true,"family":"Houdek","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":451522,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lombardo, M.P.","contributorId":56060,"corporation":false,"usgs":true,"family":"Lombardo","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":451524,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thorpe, P.A.","contributorId":21363,"corporation":false,"usgs":true,"family":"Thorpe","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":451521,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hahn, Caldwell 0000-0002-5242-2059 chahn@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2059","contributorId":3203,"corporation":false,"usgs":true,"family":"Hahn","given":"Caldwell","email":"chahn@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":451523,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035988,"text":"70035988 - 2011 - Magma at depth: A retrospective analysis of the 1975 unrest at Mount Baker, Washington, USA","interactions":[],"lastModifiedDate":"2018-10-30T09:43:42","indexId":"70035988","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Magma at depth: A retrospective analysis of the 1975 unrest at Mount Baker, Washington, USA","docAbstract":"Mount Baker volcano displayed a short interval of seismically-quiescent thermal unrest in 1975, with high emissions of magmatic gas that slowly waned during the following three decades. The area of snow-free ground in the active crater has not returned to pre-unrest levels, and fumarole gas geochemistry shows a decreasing magmatic signature over that same interval. A relative microgravity survey revealed a substantial gravity increase in the ~30 years since the unrest, while deformation measurements suggest slight deflation of the edifice between 1981-83 and 2006-07. The volcano remains seismically quiet with regard to impulsive volcano-tectonic events, but experiences shallow (<3 km) low-frequency events likely related to glacier activity, as well as deep (>10 km) long-period earthquakes. Reviewing the observations from the 1975 unrest in combination with geophysical and geochemical data collected in the decades that followed, we infer that elevated gas and thermal emissions at Mount Baker in 1975 resulted from magmatic activity beneath the volcano: either the emplacement of magma at mid-crustal levels, or opening of a conduit to a deep existing source of magmatic volatiles. Decadal-timescale, multi-parameter observations were essential to this assessment of magmatic activity.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s00445-010-0441-0","issn":"02588900","usgsCitation":"Crider, J.G., Frank, D., Malone, S.D., Poland, M., Werner, C., and Caplan-Auerbach, J., 2011, Magma at depth: A retrospective analysis of the 1975 unrest at Mount Baker, Washington, USA: Bulletin of Volcanology, v. 73, no. 2, p. 175-189, https://doi.org/10.1007/s00445-010-0441-0.","productDescription":"15 p.","startPage":"175","endPage":"189","numberOfPages":"15","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":244287,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216418,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00445-010-0441-0"}],"country":"United States","otherGeospatial":"Mount Baker Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.0171,47.9503 ], [ -122.0171,49.0003 ], [ -120.6545,49.0003 ], [ -120.6545,47.9503 ], [ -122.0171,47.9503 ] ] ] } } ] }","volume":"73","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-02-27","publicationStatus":"PW","scienceBaseUri":"505a4b2ee4b0c8380cd6934c","contributors":{"authors":[{"text":"Crider, Juliet G.","contributorId":78580,"corporation":false,"usgs":true,"family":"Crider","given":"Juliet","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":453490,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frank, David","contributorId":13969,"corporation":false,"usgs":true,"family":"Frank","given":"David","affiliations":[],"preferred":false,"id":453487,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Malone, Stephen D.","contributorId":68135,"corporation":false,"usgs":true,"family":"Malone","given":"Stephen","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":453489,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":635,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","email":"mpoland@usgs.gov","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":453485,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Werner, Cynthia 0000-0003-3311-6694","orcid":"https://orcid.org/0000-0003-3311-6694","contributorId":11444,"corporation":false,"usgs":true,"family":"Werner","given":"Cynthia","affiliations":[],"preferred":false,"id":453486,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Caplan-Auerbach, Jacqueline","contributorId":17848,"corporation":false,"usgs":true,"family":"Caplan-Auerbach","given":"Jacqueline","affiliations":[],"preferred":false,"id":453488,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70032322,"text":"70032322 - 2011 - Wave-current interaction in Willapa Bay","interactions":[],"lastModifiedDate":"2017-11-05T22:28:20","indexId":"70032322","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2315,"text":"Journal of Geophysical Research C: Oceans","active":true,"publicationSubtype":{"id":10}},"title":"Wave-current interaction in Willapa Bay","docAbstract":"This paper describes the importance of wave-current interaction in an inlet-estuary system. The three-dimensional, fully coupled, Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was applied in Willapa Bay (Washington State) from 22 to 29 October 1998 that included a large storm event. To represent the interaction between waves and currents, the vortex-force method was used. Model results were compared with water elevations, currents, and wave measurements obtained by the U.S. Army Corp of Engineers. In general, a good agreement between field data and computed results was achieved, although some discrepancies were also observed in regard to wave peak directions in the most upstream station. Several numerical experiments that considered different forcing terms were run in order to identify the effects of each wind, tide, and wave-current interaction process. Comparison of the horizontal momentum balances results identified that wave-breaking-induced acceleration is one of the leading terms in the inlet area. The enhancement of the apparent bed roughness caused by waves also affected the values and distribution of the bottom shear stress. The pressure gradient showed significant changes with respect to the pure tidal case. During storm conditions the momentum balance in the inlet shares the characteristics of tidal-dominated and wave-dominated surf zone environments. The changes in the momentum balance caused by waves were manifested both in water level and current variations. The most relevant effect on hydrodynamics was a wave-induced setup in the inner part of the estuary.
","language":"English","publisher":"Wiley","doi":"10.1029/2011JC007387","issn":"01480227","usgsCitation":"Olabarrieta, M., Warner, J., and Kumar, N., 2011, Wave-current interaction in Willapa Bay: Journal of Geophysical Research C: Oceans, v. 116, no. C12, Article C12014; 27 p., https://doi.org/10.1029/2011JC007387.","productDescription":"Article C12014; 27 p.","costCenters":[],"links":[{"id":475277,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/4991","text":"External Repository"},{"id":242583,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Willapa Bay","volume":"116","issue":"C12","noUsgsAuthors":false,"publicationDate":"2011-12-13","publicationStatus":"PW","scienceBaseUri":"505bcf98e4b08c986b32e9c1","contributors":{"authors":[{"text":"Olabarrieta, Maitane 0000-0002-7619-7992 molabarrieta@usgs.gov","orcid":"https://orcid.org/0000-0002-7619-7992","contributorId":81631,"corporation":false,"usgs":true,"family":"Olabarrieta","given":"Maitane","email":"molabarrieta@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":435605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warner, John C. 0000-0002-3734-8903 jcwarner@usgs.gov","orcid":"https://orcid.org/0000-0002-3734-8903","contributorId":2681,"corporation":false,"usgs":true,"family":"Warner","given":"John C.","email":"jcwarner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":435603,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kumar, Nirnimesh","contributorId":190663,"corporation":false,"usgs":false,"family":"Kumar","given":"Nirnimesh","email":"","affiliations":[],"preferred":false,"id":435604,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70032324,"text":"70032324 - 2011 - Pore morphology effect in microlog for porosity prediction in a mature field","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70032324","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Pore morphology effect in microlog for porosity prediction in a mature field","docAbstract":"In an matured field, developed during the 1950s, no porosity logs were available from sources other than invaded zone resistivity Rxo . The microresistivity porosity is calibrated with the core porosity to yield an accurate estimate of the porosity. However, the procedure of calibrating the porosity with Rxo for a linear regression model may not be predictive without an understanding of the pore types in the reservoir interval. A thorough investigation of the pore types, based on the lithofacies description obtained from the core analysis, and its role in obtaining a good estimate of porosity is demonstrated in the Ogallah field. Therefore, the objective of this paper is to separate the porosity-microlog data into pore-type based zones with characteristic cementation exponents (m) in this multi-petrotype reservoir with a complex mixture of Arbuckle dolomite and sandstone rock. The value of m is critical in making estimates of water saturation. \"Rule of thumb\" values of cementation might lead to errors in water saturation on either the optimistic or the pessimistic side. The rock types in the Ogallah contain interparticle/intercrystalline, vugs and fractures distributed through the rock-facies, which influence the values of cementation factor. We use the modern typed well to shed light on the Archie's equation parameter values. Rock fabric numbers and flow zone indices have been identified for classification of dolomite and sandstone, respectively. The analysis brings out characteristic cementation factors for distinct pore types in the Arbuckle rock. The porosity predictions The analysis results also compliment the petrofacies delineation using LDA in this complicated rock layout as a quality control of the statistical application. The comparison between the predicted and core porosities shows a significant improvement over using a single m value for carbonates and sandstones which will lead to improved description of a matured field. Copyright 2011, Society of Petroleum Engineers.","largerWorkTitle":"SPE Eastern Regional Meeting","conferenceTitle":"Society of Petroleum Engineers Eastern Regional Meeting 2011","conferenceDate":"17 August 2011 through 19 August 2011","conferenceLocation":"Columbus, OH","language":"English","isbn":"9781618390936","usgsCitation":"Teh, W., Willhite, G., Doveton, J., and Tsau, J., 2011, Pore morphology effect in microlog for porosity prediction in a mature field, in SPE Eastern Regional Meeting, Columbus, OH, 17 August 2011 through 19 August 2011, p. 477-488.","startPage":"477","endPage":"488","numberOfPages":"12","costCenters":[],"links":[{"id":242617,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7dcae4b0c8380cd7a169","contributors":{"authors":[{"text":"Teh, W.J.","contributorId":32002,"corporation":false,"usgs":true,"family":"Teh","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":435614,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Willhite, G.P.","contributorId":78511,"corporation":false,"usgs":true,"family":"Willhite","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":435615,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doveton, J.H.","contributorId":30237,"corporation":false,"usgs":true,"family":"Doveton","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":435613,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tsau, J.S.","contributorId":13053,"corporation":false,"usgs":true,"family":"Tsau","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":435612,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032327,"text":"70032327 - 2011 - Spatial variation in transient water table responses: Differences between an upper and lower hillslope zone","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70032327","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Spatial variation in transient water table responses: Differences between an upper and lower hillslope zone","docAbstract":"To better understand storage-runoff dynamics, transient groundwater responses were examined in one of the steep watersheds in British Columbia's coastal mountains. Streamflow and piezometric data were collected for 1year to determine the spatial and temporal relations between transient groundwater levels and discharge. Correlations between piezometer responses and lag-time analysis were used to identify and better understand runoff generation mechanisms in this watershed. Results showed a large spatial and temporal variation in transient water table dynamics and indicated that two distinct zones existed: a lower hillslope zone and an upslope zone. Each zone was characterized by very different water table responses. The upper hillslope was disconnected from the stream for the majority of time, suggesting that during most events, it does not directly contribute to streamflow. Piezometers in the lower hillslope zone showed hydrologically limited responses, suggesting rapid subsurface flow, likely through the many macropores and soil pipes. The lag time between peak streamflow and peak groundwater level decreased with increasing antecedent moisture conditions and was more variable for piezometers further away from the stream than for piezometers close to the stream. The study results indicate that a single storage-runoff model is not appropriate for this steep watershed and that a two- or three-compartment model would be more suitable. ?? 2011 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.8354","issn":"08856087","usgsCitation":"Haught, D., and Van Meerveld, H., 2011, Spatial variation in transient water table responses: Differences between an upper and lower hillslope zone: Hydrological Processes, v. 25, no. 25, p. 3866-3877, https://doi.org/10.1002/hyp.8354.","startPage":"3866","endPage":"3877","numberOfPages":"12","costCenters":[],"links":[{"id":214890,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.8354"},{"id":242648,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"25","noUsgsAuthors":false,"publicationDate":"2011-11-14","publicationStatus":"PW","scienceBaseUri":"505b94bde4b08c986b31ac1b","contributors":{"authors":[{"text":"Haught, D.R.W.","contributorId":80100,"corporation":false,"usgs":true,"family":"Haught","given":"D.R.W.","email":"","affiliations":[],"preferred":false,"id":435629,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Meerveld, H. J.","contributorId":107954,"corporation":false,"usgs":true,"family":"Van Meerveld","given":"H. J.","affiliations":[],"preferred":false,"id":435630,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035814,"text":"70035814 - 2011 - Estimating earthquake-rupture rates on a fault or fault system","interactions":[],"lastModifiedDate":"2013-04-04T10:54:14","indexId":"70035814","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Estimating earthquake-rupture rates on a fault or fault system","docAbstract":"Previous approaches used to determine the rates of different earthquakes on a fault have made assumptions regarding segmentation, have been difficult to document and reproduce, and have lacked the ability to satisfy all available data constraints. We present a relatively objective and reproducible inverse methodology for determining the rate of different ruptures on a fault or fault system. The data used in the inversion include slip rate, event rate, and other constraints such as an optional a priori magnitude-frequency distribution. We demonstrate our methodology by solving for the long-term rate of ruptures on the southern San Andreas fault. Our results imply that a Gutenberg-Richter distribution is consistent with the data available for this fault; however, more work is needed to test the robustness of this assertion. More importantly, the methodology is extensible to an entire fault system (thereby including multifault ruptures) and can be used to quantify the relative benefits of collecting additional paleoseismic data at different sites.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Seismological Society of America","publisherLocation":"El Cerrito, CA","doi":"10.1785/0120100004","issn":"00371106","usgsCitation":"Field, E.H., and Page, M., 2011, Estimating earthquake-rupture rates on a fault or fault system: Bulletin of the Seismological Society of America, v. 101, no. 1, p. 79-92, https://doi.org/10.1785/0120100004.","productDescription":"14 p.","startPage":"79","endPage":"92","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":244336,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216465,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120100004"}],"volume":"101","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-26","publicationStatus":"PW","scienceBaseUri":"505a0b17e4b0c8380cd52577","contributors":{"authors":[{"text":"Field, E. H.","contributorId":86915,"corporation":false,"usgs":true,"family":"Field","given":"E.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":452537,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Page, M.T.","contributorId":36771,"corporation":false,"usgs":true,"family":"Page","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":452536,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}