Habitat Suitability Index Models: Juvenile English sole
Christopher L. Toole, Roger A. Barnhart, Christopher P. Onuf
1987, FWS/OBS 82/10.133
English sole (Parophrys vetulus) is one of the major commercial groundfish species caught along the Pacific coast. Landings in the United States and Canada averaged 4,947 t/yr between 1975 and 1984, placing it third in importance among flatfish caught by Pacific coast trawlers (Pacific Marine Fisheries Commission 1985). Juvenile English...
Habitat Suitability Index Models: American alligator
John D. Newsom, Ted Joanen, Rebecca J. Howard
1987, FWS/OBS 82/10.136
A review and synthesis of existing information were used to develop a model for evaluating American alligator habitat quality. The model is applicable in marshes along the northern Gulf of Mexico. It is scaled to produce an index between 0 (unsuitable habitat) and 1.0 (optimal habitat). Habitat suitability index models...
Habitat Suitability Index Models: Black Bear, Upper Great Lakes Region
Lynn L. Rogers, Arthur W. Allen
1987, FWS/OBS 82/10.144
A review and synthesis of existing information were used to develop a Habitat Suitability Index (HSI) model for the black bear (Ursus americanus). The model consolidates habitat use information into a framework appropriate for field application, and is scaled to produce an index between 0.0 (unsuitable habitat) to 1.0 (optimum...
FASPUM metric version; analytic petroleum resource appraisal microcomputer programs for play analysis using a reservoir-engineering model; B, Program disk
Robert A. Crovelli, Richard H. Balay
1987, Open-File Report 87-414-B
Jabiluka-type gold deposits; text and slides for a talk presented at the international workshop on Gold deposit modeling in exploration
R. I. Grauch, C.J. Nutt
1987, Open-File Report 87-142
Analytically-derived sensitivities in one-dimensional models of solute transport in porous media
D.S. Knopman
1987, Open-File Report 86-605
Analytically-derived sensitivities are presented for parameters in one-dimensional models of solute transport in porous media. Sensitivities were derived by direct differentiation of closed form solutions for each of the odel, and by a time integral method for two of the models. Models are based on the advection-dispersion equation and include...
Sedimentary basin models documented on computer diskettes for USGS bulletin 1810 the muPETROL expert system for classifying world sedimentary basins
B.M. Miller
1987, Open-File Report 87-404
Surface water-quality assessment of the Kentucky River basin, Kentucky: Project description
K. D. White, J. L. Smoot, J. K. Jackson, Anne F. Choquette
1987, Open-File Report 87-234
In April 1986, the U.S. Geological Survey began the National Water Quality Assessment Program, which at present (1987) is in a pilot phase in which assessment concepts and approaches are being tested and modified to prepare for full implementation of the program in the future. Seven pilot projects (four surface...
Sensitivity analysis of a multilayer, finite-difference model of the southeastern Coastal Plain regional aquifer system: Mississippi, Alabama, Georgia, and South Carolina
Meribeth Pernik
1987, Water-Resources Investigations Report 87-4108
The sensitivity of a multilayer finite-difference regional flow model was tested by changing the calibrated values for five parameters in the steady-state model and one in the transient-state model. The parameters that changed under the steady-state condition were those that had been routinely adjusted during the calibration process as part...
Ground-water flow in the Navajo sandstone in parts of Emery, Grand, Carbon, Wayne, Garfield, and Kane counties, southeast Utah
Emanuel Weiss
1987, Water-Resources Investigations Report 86-4012
A finite-difference model of one layer was constructed to determine groundwater flow directions and magnitudes in the Navajo Sandstone of southeast Utah. Hydraulic head data, hydraulic conductivity data, precipitation data, and other data collected in the area were used in constructing and calibrating the model. Sensitivity of the model to...
Floods in Kansas and techniques for estimating their magnitude and frequency on unregulated streams
R.W. Clement
1987, Water-Resources Investigations Report 87-4008
Techniques are presented for generalizing the skewness coefficient of log-Pearson Type III distributions of annual maximum discharges and for flood magnitudes that have selected recurrence intervals from 2 to 100 yr. A weighted least-square (WLS) regression model was used to generalize the coefficients of station skewness that resulted in a...
Calibration of a dissolved-solids model for the Yampa River basin between Steamboat Springs and Maybell, northwestern Colorado
R. S. Parker, D. W. Litke
1987, Water-Resources Investigations Report 86-4190
The cumulative effects of changes in dissolved solids from a number of coal mines are needed to evaluate effects on downstream water use. A model for determining cumulative effects of streamflow, dissolved-solids concentration, and dissolved-solids load was calibrated for the Yampa River and its tributaries in northwestern Colorado. The model...
Geochemical map of the Pond Mountain and Pond Mountain Addition Roadless Areas, Carter County, Tennessee
K.A. Duttweiler, W. R. Griffitts, E.F. Cooley, J. W. Whitlow
1987, Miscellaneous Field Studies Map 1648-B
In the spring of 1980, K. A. Duttweiler, J. W. Whitlow, and W. R. Griffitts of the U.S. Geological Survey conducted a reconnaissance geochemical survey of the Pond Mountain and Pond Mountain Addition Roadless Areas. The purpose of the study was to determine the geochemical nature of the study area...
Hydrologic monitoring of selected streams in coal fields of central and southern Utah — Summary of data collected, August 1978-September 1984
Don Price, G.G. Plantz
1987, Water-Resources Investigations Report 86-4017
The U.S. Geological Survey conducted a coal-hydrology monitoring program in coal-field areas of central and southern Utah during August 1978-September 1984 to determine possible hydrologic impacts of future mining and to provide a better understanding of the hydrologic systems of the coal resource areas monitored. Data were collected at 19...
Hydrology of the U.S. Army Pinon Canyon maneuver site, Las Animas County, Colorado
Paul Von Guerard, P.O. Abbott, Raymond C. Nickless
1987, Water-Resources Investigations Report 87-4227
The U.S. Department of the Army (Fort Carson Military Reservation) has acquired 381 sq mi of semiarid rangeland in southeastern Colorado for mechanized military maneuvers. The study area, known as the Pinon Canyon Maneuver Site, drains into the Purgatoire River, a major tributary of the upper Arkansas River. A multidisciplined...
Simulation of unsteady flow in the Milwaukee Harbor Estuary at Milwaukee, Wisconsin
L. B. House
1987, Water-Resources Investigations Report 86-4050
This report describes the application and results of an unsteady-flow model for the Milwaukee Harbor Estuary. The model simulates unsteady and upstream flow occurring in the estuary as a result of Lake Michigan Seiche. The discharge computed by the model indicates that upstream flow occurs throughout the estuary during periods...
Flow model for open-channel reach or network
R.W. Schaffranek
1987, Professional Paper 1384
Formulation of a one-dimensional model for simulating unsteady flow in a single open-channel reach or in a network of interconnected channels is presented. The model is both general and flexible in that it can be used to simulate a wide range of flow conditions for various channel configurations. It is...
Possible changes in ground-water flow to the Pecos River caused by Santa Rosa Lake, Guadalupe County, New Mexico
D. W. Risser
1987, Water-Resources Investigations Report 85-4291
In 1980 Santa Rosa Dam began impounding water on the Pecos River about 7 miles north of Santa Rosa, New Mexico, to provide flood control, sediment control, and storage for irrigation. Santa Rosa Lake has caused changes in the groundwater flow system, which may cause changes in the streamflow of...
Habitat Suitability Index Models: Bullfrog
Brent M. Graves, Stanley H. Anderson
1987, FWS/OBS 82/10.138
A review and synthesis of existing information were used to develop a Habitat Suitability Index (HSI) model for the bullfrog (Rana catesbeiana). The model consolidates habitat use information into a framework appropriate for field application, and is scaled to produce an index between 0.0 (unsuitable habitat) to 1.0 (optimum habitat)....
Surface water-quality assessment of the lower Kansas River basin, Kansas and Nebraska; project description
J. K. Stamer, P. R. Jordan, R. A. Engberg, J. T. Dugan
1987, Open-File Report 87-105
In 1986 the U.S. Geological Survey began a National Water-Quality Assessment Program to: (1) provide nationally consistent descriptions of the current status of water quality for a large, diverse, and geographically distributed part of the Nation 's surface water resources; (2) where possible, define trends in water quality; and (3)...
Geology and hydrology of the Onondaga aquifer in eastern Erie County, New York, with emphasis on ground-water-level declines since 1982
W. W. Staubitz, Todd S. Miller
1987, Water-Resources Investigations Report 86-4317
The Onondaga aquifer is a nearly flat-lying, 25- to 110-foot-thick, cherty limestone with moderately developed karst features such as sinkholes, disappearing streams, and solution-widened joints. Most groundwater moves through solution-widened bedding planes, although some moves through vertical joints. The yield of water from 42 wells ranges from 3 to 100...
Base of moderately saline ground water in the Uinta Basin, Utah, with an introductory section describing the methods used in determining its position
Lewis Howells, M.S. Longson, G.L. Hunt
1987, Open-File Report 87-394
No abstract available....
Effect of grid size on digital simulation of ground-water flow in the southern High Plains of Texas and New Mexico
R. R. Luckey, D.M. Stephens
1987, Water-Resources Investigations Report 87-4085
Three models of the aquifer in the southern High Plains were compared to determine the effect of grid size on simulated water levels. The first model, calibrated prior to this study, had 10-mi grid spacing. The mean difference between the simulated and measured pre-development water levels in this model was...
Hydrology of the White Tail Butte area, northern Campbell County, Wyoming
M.E. Lowry, J.G. Rankl
1987, Water-Resources Investigations Report 82-4117
Quantity of runoff and peak discharge from one small basin in the White Tail Butte area, determined from a calibrated rainfall-runoff model, is less than the quantity computed using results of a regional study. The difference is caused by the extensive beds of exposed, permeable clinker in the area. Potentiometric...
Review of literature on the finite-element solution of the equations of two-dimensional surface-water flow in the horizontal plane
Jonathan K. Lee, David C. Froehlich
1987, Circular 1009
Published literature on the application of the finite-element method to solving the equations of two-dimensional surface-water flow in the horizontal plane is reviewed in this report. The finite-element method is ideally suited to modeling two-dimensional flow over complex topography with spatially variable resistance. A two-dimensional finite-element surface-water flow model with...
