A topographic feature taxonomy for a U.S. national topographic mapping ontology
Dalia E. Varanka
2009, Book, 24th International Cartographic Conference
Using legacy feature lists from the U.S. National Topographic Mapping Program of the twentieth century, a taxonomy of features is presented for purposes of developing a national topographic feature ontology for geographic mapping and analysis. After reviewing published taxonomic classifications, six basic classes are suggested; terrain, surface water, ecological regimes,...
Using a coupled groundwater/surface-water model to predict climate-change impacts to lakes in the Trout Lake Watershed, northern Wisconsin
Randall J. Hunt, John F. Walker, Steven L. Markstrom, Lauren E. Hay, John Doherty
Richard M. T. Webb, Darius J. Semmens, editor(s)
2009, Conference Paper, Planning for an uncertain future - monitoring, integration, and adaptation (SIR 2009-5049)
A major focus of the U.S. Geological Survey’s Trout Lake Water, Energy, and Biogeochemical Budgets (WEBB) project is the development of a watershed model to allow predictions of hydrologic response to future conditions including land-use and climate change. The coupled groundwater/surface-water model GSFLOW was chosen for this purpose because it...
Hindcasting of decadal‐timescale estuarine bathymetric change with a tidal‐timescale model
Neil K. Ganju, David H. Schoellhamer, Bruce E. Jaffe
2009, Journal of Geophysical Research F: Earth Surface (114)
Hindcasting decadal-timescale bathymetric change in estuaries is prone to error due to limited data for initial conditions, boundary forcing, and calibration; computational limitations further hinder efforts. We developed and calibrated a tidal-timescale model to bathymetric change in Suisun Bay, California, over the 1867–1887 period. A general, multiple-timescale calibration ensured robustness...
Importance of light, temperature, zooplankton, and fish in predicting the nighttime vertical distribution of Mysis diluviana
Brent Boscarino, Lars G. Rudstam, S.A. Ellenberger, Robert O’Gorman
2009, Aquatic Biology (5) 263-279
The opossum shrimp Mysis diluviana (formerly M. relicta) performs large amplitude diel vertical migrations in Lake Ontario and its nighttime distribution is influenced by temperature, light and the distribution of its predators and prey. At one location in southeastern Lake Ontario, we measured the vertical distribution of mysids, mysid predators (i.e. planktivorous fishes)...
Quantifying terrestrial ecosystem carbon dynamics in the Jinsha watershed, Upper Yangtze, China from 1975 to 2000
Shuqing Zhao, Shuguang Liu, Runsheng Yin, Zhengpeng Li, Yulin Deng, Kun Tan, Xiangzheng Deng, David Rothstein, Jiaguo Qi
Runsheng Yin, editor(s)
2009, Book chapter, An integrated assessment of China’s ecological restoration programs
Quantifying the spatial and temporal dynamics of carbon stocks in terrestrial ecosystems and carbon fluxes between the terrestrial biosphere and the atmosphere is critical to our understanding of regional patterns of carbon storage and loss. Here we use the General Ensemble Biogeochemical Modeling System to simulate the terrestrial ecosystem carbon...
Estimated land-surface subsidence in Harris County, Texas, 1915-17 to 2001
Mark C. Kasmarek, Robert K. Gabrysch, Michaela R. Johnson
2009, Scientific Investigations Map 3097
Land-surface subsidence, or land subsidence, in Harris County, Texas, which encompasses much of the Houston area, has been occurring for decades. Land subsidence has increased the frequency and extent of flooding, damaged buildings and transportation infrastructure, and caused adverse environmental effects. The primary cause of land subsidence in the Houston...
Geomorphology and river dynamics of the lower Copper River, Alaska
Timothy P. Brabets, Jeffrey S. Conaway
2009, Scientific Investigations Report 2009-5257
Located in south-central Alaska, the Copper River drains an area of more than 24,000 square miles. The average annual flow of the river near its mouth is 63,600 cubic feet per second, but is highly variable between winter and summer. In the winter, flow averages approximately 11,700 cubic feet per...
Pore-water chemistry from the ICDP-USGS coer hole in the Chesapeake Bay impact structure--Implications for paleohydrology, microbial habitat, and water resources
Ward E. Sanford, Mary A. Voytek, David S. Powars, Blair F. Jones, Isabelle M. Cozzarelli, Robert P. Eganhouse, Charles S. Cockell
2009, Special Paper of the Geological Society of America (458) 867-890
We investigated the groundwater system of the Chesapeake Bay impact structure by analyzing the pore-water chemistry in cores taken from a 1766-m-deep drill hole 10 km north of Cape Charles, Virginia. Pore water was extracted using high-speed centrifuges from over 100 cores sampled from a 1300 m section of...
Effects of Groundwater Development on Uranium: Central Valley, California, USA
Bryant C. Jurgens, Miranda S. Fram, Kenneth Belitz, Karen R. Burow, Matthew K. Landon
2009, Ground Water (48) 913-928
Uranium (U) concentrations in groundwater in several parts of the eastern San Joaquin Valley, California, have exceeded federal and state drinking water standards during the last 20 years. The San Joaquin Valley is located within the Central Valley of California and is one of the most productive agricultural areas in...
2008 Spawning Cisco Investigations in the Canadian Waters of Lake Superior
Daniel L. Yule, Peter A. Addison, Lori M. Evrard, Ken I. Cullis, Gary A. Cholwek
2009, Report
The Great Lakes Science Center of the United States Geological Survey (USGS) is working cooperatively with the Ontario Ministry of Natural Resources (OMNR) on a threeyear study to develop standard procedures for acoustic and midwater trawl (AC-MT) assessments of spawning cisco Coregonus artedi that the OMNR can carry forward as...
Geochemical Evolution of Great Salt Lake, Utah, USA
Blair F. Jones, David L. Naftz, Ronald J. Spencer, Charles G. Oviatt
2009, Aquatic Geochemistry (15) 95-121
"The Great Salt Lake (GSL) of Utah, USA, is the largest saline lake in North America, and its brines are some of the most concentrated anywhere in the world. The lake occupies a closed basin system whose chemistry reflects solute inputs from the weathering of a diverse suite of rocks in its drainage...
Geochemistry of inorganic nitrogen in waters released from coal-bed natural gas production wells in the Powder River Basin, Wyoming
Richard L. Smith, Deborah A. Repert, Charles P. Hart
2009, Environmental Science & Technology (43) 2348-2354
Water originating from coal-bed natural gas (CBNG) production wells typically contains ammonium and is often disposed via discharge to ephemeral channels. A study conducted in the Powder River Basin, Wyoming, documented downstream changes in CBNG water composition, emphasizing nitrogen-cycling processes and the fate of ammonium. Dissolved ammonium concentrations from 19...
Maximum length and age of round gobies (Apollonia melanostomus) in Lake Huron
John R. P. French III, M. Glen Black
2009, Journal of Freshwater Ecology (24) 173-175
The round goby (Apollonia [Neogobius] melanostomus,) an invasive species, is generally smaller and shorter-lived in the Great Lakes than it native range. We examined 30 large male round gobies from trawl samples taken in Lake Huron and used otoliths to determine their age and back-calculated growth. Standard lengths ranged from...
Organochlorine pesticides residue in lakes of Khorezm, Uzbekistan
Michael R. Rosen, Bakhriddin Nishonov, Dilorom Fayzieva, L. Saito, J. Lamers
2009, Book, 10th International HCH and pesticide forum book of papers: how many obsolete pesticides have been disposed of 8 years after signature of Stockholm Convention
The Khorezm province in northwest Uzbekistan is a productive agricultural area within the Aral Sea Basin that produces cotton, rice and wheat. Various organochlorine pesticides were widely used for cotton production before Uzbekistan's independence in 1991. In Khorezm, small lakes have formed in natural depressions that receive inputs mostly from...
Transport of tritium contamination to the atmosphere in an arid environment
C. Amanda Garcia, Brian J. Andraski, Michael J. Johnson, David A. Stonestrom, Robert L. Michel, C.A. Cooper, S.W. Wheatcraft
2009, Vadose Zone Journal (8) 450-461
Soil–plant–atmosphere interactions strongly influence water movement in desert unsaturated zones, but little is known about how such interactions affect atmospheric release of subsurface water-borne contaminants. This 2-yr study, performed at the U.S. Geological Survey's Amargosa Desert Research Site in southern Nevada, quantified the magnitude and spatiotemporal variability of tritium (3H)...
Potential Inundation due to Rising Sea Levels in the San Francisco Bay Region
Noah Knowles
2009, Report
An increase in the rate of sea level rise is one of the primary impacts of projected global climate change. To assess potential inundation associated with a continued acceleration of sea level rise, the highest resolution elevation data available were assembled from various sources and mosaicked to cover the land...
Desert Dust Storm Microbiology: Issues in Planetary Health
Dale W. Griffin
2009, Book chapter, Yearbook of Science and Technology
A simple technique for continuous measurement of time-variable gas transfer in surface waters
Craig R. Tobias, John Karl Bohlke, Judson W. Harvey, Eurybiades Busenberg
2009, Limnology and Oceanography: Methods (7) 185-195
Mass balance models of dissolved gases in streams, lakes, and rivers serve as the basis for estimating wholeecosystem rates for various biogeochemical processes. Rates of gas exchange between water and the atmosphere are important and error-prone components of these models. Here we present a simple and efficient modification of the...
Predicting the natural flow regime: Models for assessing hydrological alteration in streams
D.M. Carlisle, J. Falcone, D.M. Wolock, M. R. Meador, R.H. Norris
2009, River Research and Applications (26) 118-136
Understanding the extent to which natural streamflow characteristics have been altered is an important consideration for ecological assessments of streams. Assessing hydrologic condition requires that we quantify the attributes of the flow regime that would be expected in the absence of anthropogenic modifications. The objective of this study was to...
Hatch Timing Variations Among Reservoir Gizzard Shad Populations: Implications for Stocked Sander spp. Fingerlings
Richard D. Zweifela, David B. Bunnell, Mary T. Bremiganc, R. Scott Hale
2009, North American Journal of Fisheries Management (29) 488-494
Growth and survival of stocked Sander spp. fingerlings can be influenced by timing of stocking in relation to the peak in density of larval gizzard shad Dorosoma cepedianum. However, coordinating stockings to coincide with peaks in gizzard shad density is difficult due to temporal variation in spawn timing among reservoirs....
Predicting organic floc transport dynamics in shallow aquatic ecosystems: Insights from the field, the laboratory, and numerical modeling
Judson W. Harvey, Gregory B. Noe, Laurel G. Larsen, John P. Crimaldi
2009, Water Resources Research (45)
Transport of particulate organic material can impact watershed sediment and nutrient budgets and can alter the geomorphologic evolution of shallow aquatic environments. Prediction of organic aggregate (“floc”) transport in these environments requires knowledge of how hydraulics and biota affect the entrainment, settling, and aggregation of particles. This study evaluated the...
Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA
J.K. Bohlke, Ronald C. Antweiler, Judson W. Harvey, Andrew E. Laursen, Lesley K. Smith, Richard L. Smith, Mary A. Voytek
2009, Biogeochemistry (93) 117-141
Denitrification is an important net sink for NO3− in streams, but direct measurements are limited and in situ controlling factors are not well known. We measured denitrification at multiple scales over a range of flow conditions and NO3− concentrations in streams draining agricultural land in the upper Mississippi River basin....
Climate change adaptation for the US National Wildlife Refuge System
Brad Griffith, J. Michael Scott, Robert S. Adamcik, Daniel Ashe, Brian Czech, Robert Fischman, Patrick Gonzalez, Joshua J. Lawler, A. David McGuire, Anna Pidgorna
2009, Environmental Management (44) 1043-1052
Since its establishment in 1903, the National Wildlife Refuge System (NWRS) has grown to 635 units and 37 Wetland Management Districts in the United States and its territories. These units provide the seasonal habitats necessary for migratory waterfowl and other species to complete their annual life cycles. Habitat conversion and...
Water-level conditions in selected confined aquifers of the New Jersey and Delaware Coastal Plain
Vincent T. DePaul, Robert Rosman, Pierre Lacombe
2009, Conference Paper, New Jersey Coastal Plain Stratigraphy & Coastal Processes Conference Proceedings
No abstract available...
Changes in the global water cycle
D.P. Lettenmaier, V. Aizen, A. Amani, T. Bohn, F. Giorgi, S. Harrison, Thomas G. Huntington, R. Lawford, P. Letitre, H. Lins, J. Magomi, G-K. Park, I. Severskiy, W.J. Shuttleworth, P. Singh, S. Sorooshian, W. Struckmeier, K. Takeuchi, L. Tallaksen, C. Vorosmarty, Tandorig Yan, T. Zhang
2009, Conference Paper, Water in a changing world : the United Nations World Water Development Report 3
No abstract available...
