Ground-water recharge in the arid and semiarid southwestern United States: Climatic and geologic framework
David A. Stonestrom, James R. Harrill
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703-A
Ground-water recharge in the arid and semiarid southwestern United States results from the complex interplay of climate, geology, and vegetation across widely ranging spatial and temporal scales. Present-day recharge tends to be narrowly focused in time and space. Widespread water-table declines accompanied agricultural development during the twentieth century, demonstrating that...
Effects of Hardened Low-Water Crossings on Periphyton and Water Quality in Selected Streams at the Fort Polk Military Reservation, Louisiana, 1998-99 and 2003-04
Barbara W. Bryan, C. Frederick Bryan, John K. Lovelace, Roland W. Tollett
2007, Scientific Investigations Report 2007-5279
In 2003, the U.S. Geological Survey (USGS), at the request of the U.S. Army Joint Readiness Training Center and Fort Polk, began a follow-up study to determine whether installation and modification of hardened low-water crossings had short-term (less than 1 year) or long-term (greater than 1 year) effects on periphyton...
Native Fish Sanctuary Project - Sanctuary Development Phase, 2007 Annual Report
Gordon A. Mueller
2007, Open-File Report 2008-1126
Notable progress was made in 2007 toward the development of native fish facilities in the Lower Colorado River Basin. More than a dozen facilities are, or soon will be, online to benefit native fish. When this study began in 2005 no self-supporting communities of either bonytail or razorback sucker existed....
Digital mapping techniques '06 - Workshop proceedings
David R. Soller, editor(s)
2007, Open-File Report 2007-1285
The Digital Mapping Techniques '06 (DMT'06) workshop was attended by more than 110 technical experts from 51 agencies, universities, and private companies, including representatives from 27 state geological surveys (see Appendix A of these Proceedings). This workshop was similar in nature to the previous nine meetings, which were held in...
Surficial Geologic Map and Geochronologic Database, Fish Lake Valley, Esmeralda County, Nevada, and Mono County, California
Marith C. Reheis, Debra L. Block
2007, Data Series 277
Sedimentology and sequence stratigraphy of the Lower Cretaceous Fortress Mountain and Torok Formations exposed along the Siksikpuk River, North-Central Alaska
David W. Houseknecht, Christopher J. Schenk, Marwan A. Wartes
2007, Professional Paper 1739-D
An exposure of the Lower Cretaceous Fortress Mountain and Torok Formations along the Siksikpuk River in north-central Alaska provides a rare opportunity to observe the stratigraphic contact between these two formations and to interpret the depositional facies and sequence stratigraphy of the exposed strata. The Fortress Mountain Formation at the...
Geographic Information System Software to Remodel Population Data Using Dasymetric Mapping Methods
Rachel Sleeter, Michael Gould
2007, Techniques and Methods 11-C2
The U.S. Census Bureau provides decadal demographic data collected at the household level and aggregated to larger enumeration units for anonymity purposes. Although this system is appropriate for the dissemination of large amounts of national demographic data, often the boundaries of the enumeration units do not reflect the distribution of...
An initial-abstraction, constant-loss model for unit hydrograph modeling for applicable watersheds in Texas
William H. Asquith, Meghan C. Roussel
2007, Scientific Investigations Report 2007-5243
Estimation of representative hydrographs from design storms, which are known as design hydrographs, provides for cost-effective, riskmitigated design of drainage structures such as bridges, culverts, roadways, and other infrastructure. During 2001?07, the U.S. Geological Survey (USGS), in cooperation with the Texas Department of Transportation, investigated runoff hydrographs, design storms, unit...
EAARL topography: Cape Cod National Seashore
John Brock, C. Wayne Wright, Matt Patterson, Amar Nayegandhi, Laurinda J. Travers
2007, Open-File Report 2007-1375
This Web site contains 90 Lidar-derived bare earth topography maps and GIS files for the Cape Cod National Seashore. These Lidar-derived topography maps were produced as a collaborative effort between the U.S. Geological Survey (USGS) Florida Integrated Science Center (FISC) St. Petersburg, Florida, the National Park Service (NPS), Northeast Coastal and...
EAARL topography: Gulf Islands National Seashore: Florida
John Brock, C. Wayne Wright, Amar Nayegandhi, Matt Patterson, Iris Wilson, Laurinda J. Travers
2007, Open-File Report 2007-1422
This Web site contains 33 lidar-derived bare earth topography maps and GIS files for the Gulf Islands National Seashore-Florida.These lidar-derived topography maps were produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, FISC St. Petersburg, Florida, the National Park Service (NPS), Gulf Coast...
Ground-water recharge in the arid and semiarid southwestern United States
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703
Ground-water recharge in the arid and semiarid southwestern United States results from the complex interplay of climate, geology, and vegetation across widely ranging spatial and temporal scales. Present-day recharge tends to be narrowly focused in time and space. Widespread water-table declines accompanied agricultural development during the twentieth century, demonstrating that...
Consumptive Water-Use Coefficients for the Great Lakes Basin and Climatically Similar Areas
Kimberly H. Shaffer, Donna L. Runkle
2007, Scientific Investigations Report 2007-5197
Consumptive water use is the portion of water withdrawn (for a particular use) that is evaporated, transpired, incorporated into products or crops, consumed by humans or livestock, or otherwise removed from the immediate water environment. This report, which is organized by water?use categories, includes consumptive?use coefficients for the Great Lakes...
Streamflow Measurements in North-Central Nebraska, November 2006
Steven M. Peterson, Kellan R. Strauch
2007, Data Series 332
Streamflow measurements were made during November of 2006 in the Elkhorn and Loup River basins and selected streams in the Niobrara and Platte River basins in north-central Nebraska. At these 531 sites, flows ranging from no flow to 2,600 ft3/s were measured or observed. The data are presented in a...
Coastal-Change and Glaciological Map of the Northern Ross Ice Shelf Area, Antarctica: 1962-2004
Jane G. Ferrigno, Kevin M. Foley, Charles Swithinbank, Richard S. Williams Jr.
2007, IMAP 2600-H
Changes in the area and volume of polar ice sheets are intricately linked to changes in global climate, and the resulting changes in sea level could severely impact the densely populated coastal regions on Earth. Melting of the West Antarctic part alone of the Antarctic ice sheet would cause a...
Geologic Map of the Frederick 30' x 60' Quadrangle, Maryland, Virginia, and West Virginia
Scott Southworth, David K. Brezinski, Avery Drake Jr., William C. Burton, Randall C. Orndorff, Albert J. Froelich, James E. Reddy, Danielle Denenny, David L. Daniels
2007, Scientific Investigations Map 2889
The Frederick 30? ? 60? quadrangle lies within the Potomac River watershed of the Chesapeake Bay drainage basin. The map area covers parts of Montgomery, Howard, Carroll, Frederick, and Washington Counties in Maryland; Loudoun, Clarke, and Fairfax Counties in Virginia; and Jefferson and Berkeley Counties in West Virginia. Many geologic...
Hydrostratigraphic Framework and Selection and Correlation of Geophysical Log Markers in the Surficial Aquifer System, Palm Beach County, Florida
Ronald S. Reese, Michael A. Wacker
2007, Scientific Investigations Map 2971
The surficial aquifer system is the major source of freshwater for public water supply in Palm Beach County, Florida, yet many previous studies of the hydrogeology of this aquifer system have focused only on the eastern one-half to one-third of the county in the more densely populated coastal area (Land...
Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005
W. Barclay Shoemaker, Eve L. Kuniansky, Steffen Birk, Sebastian Bauer, Eric D. Swain
2007, Techniques and Methods 6-A24
This report documents the Conduit Flow Process (CFP) for the modular finite-difference ground-water flow model, MODFLOW-2005. The CFP has the ability to simulate turbulent ground-water flow conditions by: (1) coupling the traditional ground-water flow equation with formulations for a discrete network of cylindrical pipes (Mode 1), (2) inserting a high-conductivity...
Bathymetric survey of the nearshore from Belle Pass to Caminada Pass, Louisiana: Methods and data report
Nancy T. DeWitt, James G. Flocks, Mark Hansen, Mark Kulp, B.J. Reynolds
2007, Data Series 312
The U.S. Geological Survey (USGS), in cooperation with the University of New Orleans (UNO) and the Louisiana Department of Natural Resources (LDNR), conducted a high-resolution, single-beam bathymetric survey along the Louisiana southern coastal zone from Belle Pass to Caminada Pass. The survey consisted of 483 line kilometers of data acquired...
Earth science and public health: Proceedings of the Second National Conference on USGS Health-Related Research
Herbert T. Buxton, Dale W. Griffin, Brenda S. Pierce
2007, Scientific Investigations Report 2008-5022
The mission of the U.S. Geological Survey (USGS) is to serve the Nation by providing reliable scientific information to describe and understand the earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our quality of life. As the...
Relations of Environmental Factors with Mussel-Species Richness in the Neversink River, New York
Barry P. Baldigo, Anne G. Ernst, George E. Schuler, Colin D. Apse
2007, Open-File Report 2007-1283
INTRODUCTION Declines in the distribution, abundance, and diversity of freshwater-mussel species (family Unionidae1) have been reported worldwide (Bogan, 1993; Strayer and Jirka, 1997). The principal causes of the observed declines are difficult to confirm, however, because only a few of the many factors that affect mussel-species populations have been identified (Strayer...
EL68D Wasteway Watershed Land-Cover Generation
Sheila Ruhl, E. Lynn Usery, Michael P. Finn
2007, Open-File Report 2007-1143
Classification of land cover from Landsat Enhanced Thematic Mapper Plus (ETM+) for the EL68D Wasteway Watershed in the State of Washington is documented. The procedures for classification include use of two ETM+ scenes in a simultaneous unsupervised classification process supported by extensive field data collection using Global Positioning System receivers...
ASTER-Derived 30-Meter-Resolution Digital Elevation Models of Afghanistan
Peter G. Chirico, Michael B. Warner
2007, Data Series 318
INTRODUCTION The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is an imaging instrument aboard the Terra satellite, launched on December 19, 1999, as part of the National Aeronautics and Space Administration's (NASA) Earth Observing System (EOS). The ASTER sensor consists of three subsystems: the visible and near infrared (VNIR), the...
Geologic, hydrologic, and geochemical identification of flow paths in the Edwards Aquifer, northeastern Bexar and southern Comal Counties, Texas
Cassi L. Otero
2007, Scientific Investigations Report 2007-5285
The U.S. Geological Survey, in cooperation with the San Antonio Water System, conducted a 4-year study during 2002?06 to identify major flow paths in the Edwards aquifer in northeastern Bexar and southern Comal Counties (study area). In the study area, faulting directs ground water into three hypothesized flow paths that...
Generalized potentiometric surface of the Arikaree aquifer, Pine Ridge Indian Reservation and Bennett County, South Dakota
Janet M. Carter, Allen J. Heakin
2007, Scientific Investigations Map 2993
INTRODUCTION The Pine Ridge Indian Reservation and Bennett County are located in southwest South Dakota. The Pine Ridge Indian Reservation includes all of Shannon County and the part of Jackson County south of the White River. Extensive Indian trust lands are in Bennett County. For purposes of this map, the...
Vegetation Response to the 1995 Drawdown of the Navigation Pool at Felsenthal National Wildlife Refuge, Crossett, Arkansas
Rebecca J. Howard, Christopher J. Wells
2007, Open-File Report 2007-1379
Felsenthal Navigation Pool (?the pool?) at Felsenthal National Wildlife Refuge near Crossett, Ark., was continuously flooded to a baseline elevation of 19.8 m (65.0 ft) mean sea level (m.s.l.) from late fall 1985, when the final in a series of locks and dams was constructed, until the summer of 1995....
