A generalized finite-difference formulation for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model
Arlen W. Harbaugh
1992, Open-File Report 91-494
The U.S. Geological Survey's Modular Ground-Water Flow Model assumes that model nodes are in the center of cells and that transmissivity is constant within a cell. Based on these assumptions, the model calculates coefficients, called conductance, that are multiplied by head difference to determine flow between cells. Although these are...
Bedrock geologic map of the Unionville quadrangle, Orange County, New York, and Sussex County, New Jersey
Avery Ala Drake, Donald H. Monteverde
1992, Geologic Quadrangle 1699
Shaded relief and surface markings maps of the polar regions of Ganymede
Water Resources Division, U.S. Geological Survey
1992, IMAP 2331
Geologic map of the MTM 90000 area, Planum Australe region of Mars
Ken Herkenhoff, B. C. Murray
1992, IMAP 2304
Published geologic maps of the south polar region of Mars, made using either Mariner 9 (Condit and Soderbloom, 1978) or Viking Orbiter (Tanaka and Scott, 1987)...
Water-supply potential of major streams and the upper Floridan Aquifer in the vicinity of Savannah, Georgia
Reggina Garza, R.E. Krause
1992, Open-File Report 92-629
Long-term pumping from the Upper Floridan aquifer in the Savannah, Georgia, area has lowered ground-water levels, resulting in increased salinity of ground water by seawater encroachment at Hilton Head Island, S.C., and by saltwater intrusion at Brunswick, Ga. Increased pumpage could cause further salinization of the ground-water resources. The Savannah...
Preliminary geologic map of the Riverside Quadrangle, Clark County, Nevada
D. L. Hoover, R. G. Bohannon, F. W. Simonds
1992, Open-File Report 92-554
Surficial geologic map of the Wasatch fault zone, eastern part of Utah Valley, Utah County and parts of Salt Lake and Juab counties, Utah
M. N. Machette
1992, IMAP 2095
Geology of the central Roan Plateau area, northwestern Colorado
William J. Hail Jr.
1992, Bulletin 1787-R
Flow duration and low-flow characteristics of selected Arkansas streams
A. H. Ludwig
1992, Water-Resources Investigations Report 92-4026
Quality-assurance data for routine water analysis in the National Water-Quality Laboratory of the US Geological Survey for water year 1989
T. J. Maloney, A. S. Ludtke, T.L. Krizman
1992, Water-Resources Investigations Report 92-4075
Soil moisture and remotely sensed spectral data in a partial canopy cotton field at the Maricopa Agricultural Center, Pinal County, Arizona, 1988
Sandra J. Owen-Joyce
1992, Water-Resources Investigations Report 92-4133
Rates of water movement through the floors of selected stormwater basins in Nassau County, Long Island, New York
Henry F. Ku, Donald B. Aaronson
1992, Water-Resources Investigations Report 91-4012
Are fertilizers and pesticides in the ground water? A case study of the Delmarva Peninsula, Delaware, Maryland, and Virginia
Pixie A. Hamilton, Robert J. Shedlock
1992, Circular 1080
National Energy Research Seismic Library; processed seismic data for 29 lines in the National Petroleum Reserve in Alaska
F. N. Zihlman, Russell A. Ambroziak
1992, Data Series 5
Limnology of Big Lake, south-central Alaska, 1983-84
Paul F. Woods
1992, Water Supply Paper 2382
The limnological characteristics and trophic state of Big Lake in south-central Alaska were determined from the results of an intensive study during 1983-84. The study was begun in response to concern over the potential for eutrophication of Big Lake, which has experienced substantial residential development and recreational use because of...
Areal and temporal variations in surface-water quality in the Upper Potomac River basin
T. J. Trombley
1992, Water-Resources Investigations Report 89-4139
Water resources and aquifer yields in the Charles River basin, Massachusetts
Charles F. Myette, Alison C. Simcox
1992, Water-Resources Investigations Report 88-4173
In 1984, about 66 Mgal/d (million gallons per day) of municipally supplied water was used by towns in the middle and upper Charles River basin and by the city of Cambridge in the lower basin. The Division of Water Resources of the Massachusetts Department of Environmental Management estimates that by...
Map of recently active traces of the Hayward fault, Alameda and Contra Costa Counties, California
James J. Lienkaemper
1992, Miscellaneous Field Studies Map 2196
Petrology and reservoir paragenesis in the Sussex "B" sandstone of the Upper Cretaceous Cody Shale, House Creek and Porcupine fields, Powder River basin, Wyoming
Debra K. Higley
1992, Bulletin 1917-G
Relation of change in water levels in surficial and upper Floridan aquifers and lake stage to climatic conditions and well-field pumpage in northwest Hillsborough, northeast Pinellas, and south Pasco Counties, Florida
M. A. Lopez, J. D. Fretwell
1992, Water-Resources Investigations Report 91-4158
No abstract available....
Physical processes, salinity characteristics, and potential salinity changes due to freshwater withdrawals in the Tidal Myakka River, Florida
K.M. Hammett
1992, Water-Resources Investigations Report 90-4054
Map showing interpretation of geophysical anomalies of the northwestern Uncompahgre uplift and vicinity, Grand County, Utah, and Mesa County, Colorado
J. E. Case, R. L. Morin, R. P. Dickerson
1992, Geophysical Investigations Map 997
No abstract available....
Digital topographic map centered on the Idaho Batholith and Challis volcanic field, northwestern United States
J. W. Cady
1992, Geophysical Investigations Map 996
No abstract available....
Geologic map of the Heart Rock quadrangle, McKinley County, New Mexico
Jacques F. Robertson
1992, Geologic Quadrangle 1697
Geohydrologic systems in Kansas physical framework of the western interior plains confining system
R. J. Wolf, Harold E. McGovern, Joseph M. Spinazola
1992, Hydrologic Atlas 722-C
The purpose of this Hydrologic Investigations Atlas is to provide a description of the principal geohydrologic systems in the Upper Cambrian through Lower Cretaceous rocks in Kansas. This investigation was made as part of the Central Midwest Regional Aquifer-System Analysis (CMRASA). The CMRASA is one of several major investigations by...
