Seasonal cycles of zooplankton from San Francisco Bay
Julie W. Ambler, James E. Cloern, Anne Hutchinson
1985, Hydrobiologia (129) 177-197
The two estuarine systems composing San Francisco Bay have distinct zooplankton communities and seasonal population dynamics. In the South Bay, a shallow lagoon-type estuary, the copepods Acartia spp. and Oithona davisae dominate. As in estuaries along the northeast coast of the U.S., there is a seasonal succession involving the replacement...
Remote sensing of tidal chlorophyll-a variations in estuaries
Glenn P. Catts, Siamak Khorram, James E. Cloern, Allen W. Knight, Stephen D. Degloria
1985, International Journal of Remote Sensing (6) 1685-1706
Simultaneous acquisition of surface chlorophyll-a concentrations for 39 samples from boats and Daedalus 1260 Multispectral Scanner data from a U-2 aircraft was conducted in the northern reaches of San Francisco Bay on 28 August 1980. These data were used to develop regression models for predicting surface chlorophyll-a concentrations over the...
Automated derivation of hydrologic basin characteristics from digital elevation model data
Susan K. Jenson
1985, Conference Paper, Auto-Carto VII: Proceedings of the digital representations of spatial knowledge
Digital elevation model (DEM) data in a raster format can be used to automatically derive the drainage characteristics of an area. A procedure has been designed that is capable of operating on matrices of elevation data having no algorithmically imposed size limit, while performing within the resolution and accuracy tolerances...
An investigation of hydraulic conductivity estimation in a ground-water flow study of Northern Long Valley, New Jersey
Mary C. Hill
1985, Thesis
The purpose of this study was to develop a methodology to be used to investigate the aquifer characteristics and water supply potential of an aquifer system. In particular, the geohydrology of northern Long Valley, New Jersey, was investigated. Geohydrologic data were collected and analyzed to characterize the site. Analysis was...
Population biology of bluegills, Lepomis macrochirus, in lotic habitats on the irrigated San Joaquin Valley floor
M. K. Saiki, C. J. Schmitt
1985, California Fish and Game (71) 225-244
Rapid expansion of irrigated agriculture in the western United States has prompted concerns for aquatic resources. Although the impacts of irrigation activities on quality and quantity of river water are well documented (e.g., high turbidity from soil erosion, eutrophication from nutrient runoff, pesticide contamination, reduced dis- charge), their effects on...
Iowa: a summary of water-resources activities of the United States Department of the Interior Geological Survey
R.A. Karsten
1985, Report
No abstract available....
Plant water status relationships among major floodplain sites of the Flathead River, Montana
L.C. Lee, T.M. Hinckley, M. L. Scott
1985, Wetlands (5) 15-34
Water status measurements of dominant species from major floodplain plant community types of the North Fork Flathead River, Montana were used to test the accuracy of site moisture gradient relationships postulated from floristic ordinations and site water balance estimates. Analysis of variance tests showed significant differences among the average predawn...
Interspecific relationships between American coots and waterfowl during fall migration
William R. Eddleman, Craig T. Patterson, Fritz L. Knopf
1985, The Wilson Bulletin (97) 463-472
Interactions between American Coots (Fulica americana) and water-fowl during the breeding season are well-documented (Ryder 1959, Nudds 1981). Ducks and coots use similar nesting, feeding, brooding, and loafing sites during the breeding season (Munro 1939, Sooter 1945, Ryder 1959). Coots create potential nest sites, repulse predators, provide predation...
Disturbance in a cypress-tupelo wetland: an interaction between thermal loading and hydrology
Michael L. Scott, Rebecca R. Sharitz, Lyndon C. Lee
1985, Wetlands (5) 53-68
The interaction between thermal loading and hydrology was examined in a forested wetland. As a result of flooding, portions of the wetland are periodically exposed to elevated water temperatures, resulting in progressive deterioration of the canopy. We chose three study sites along a gradient of canopy disturbance: most disturbed, intermediate...
Water resources activities of the U.S. Geological Survey
Dallas L. Peck
1985, Journal of the American Water Resources Association (21) 901-907
No abstract available. ...
Concentration of trace elements in water samples by reductive precipitation
R. K Skogerboe, W.A. Hanagan, Howard E. Taylor
1985, Analytical Chemistry (57) 2815-2818
No abstract available....
Simulation of ground-water flow in the Prairie du Chien-Jordan aquifer and relation to ground-water contamination by coal-tar derivatives, St. Louis Park, Minnesota
J. R. Stark, M. F. Hult
1985, Conference Paper
No abstract available....
Tsunamis – Scourge of the Pacific
Patricia Lockridge
1985, Earthquake Information Bulletin (USGS) (17) 211-217
Although tsunamis occur most often in the Pacific Ocean, they can be generated by major earthquakes in other areas. The most frequent cause of tsunamis…is crustal movement along a fault: a large mass of rock drops or rises and displaces the column of water above it. This column of water...
Assessment of the instantaneous unit hydrograph derived from the theory of topologically random networks
M.R. Karlinger, B.M. Troutman
1985, Water Resources Research (21) 1693-1702
An instantaneous unit hydrograph (iuh) based on the theory of topologically random networks (topological iuh) is evaluated in terms of sets of basin characteristics and hydraulic parameters. Hydrographs were computed using two linear routing methods for each of two drainage basins in the southeastern United States and are the basis...
Field determination of the three-dimensional hydraulic conductivity tensor of anisotropic media: 1. Theory
Paul A. Hsieh, Shlomo P. Neuman
1985, Water Resources Research (21) 1655-1665
A field method is proposed for determining the three-dimensional hydraulic conductivity tensor and specific storage of an anisotropic porous or fractured medium. The method, known as cross-hole testing (to distinguish it from conventional single-hole packer tests), consists of injecting fluid into (or withdrawing fluid from) packed-off intervals in a number...
Detectability of step trends in the rate of atmospheric deposition of sulfate
R.M. Hirsch, E.J. Gilroy
1985, Journal of the American Water Resources Association (21) 773-784
A method is presented to assist policy makers in determining the combination of number of sampling stations and number of years of sampling necessary to state with a given probability that a step reduction in atmospheric deposition rates of a given magnitude has occurred at a pre-specified time. This pre-specified...
Periodic autoregressive-moving average (PARMA) modeling with applications to water resources
A. V. Vecchia
1985, Journal of the American Water Resources Association (21) 721-730
Results involving correlation properties and parameter estimation for autoregressive-moving average models with periodic parameters are presented. A multivariate representation of the PARMA model is used to derive parameter space restrictions and difference equations for the periodic autocorrelations. Close approximation to the likelihood function for Gaussian PARMA processes results in efficient...
Tracer test for evaluating nonpumping intraborehole flow in fractured media
Devin L. Galloway, J.R. Erickson
1985, Transactions of the American Nuclear Society (50) 192-193
Contaminant residues in fish and sediments from lakes in the Atchafalaya River Basin (Louisiana)
Parley V. Winger, J. K. Andreasen
1985, Archives of Environmental Contamination and Toxicology (14) 579-586
Conversion of bottomland hardwood forests ℴ agricultural land has reduced habitat and water quality in many lakes in the floodplain of the lower Mississippi River. The objectives of this study were to ascertain current contaminant residue concentrations in fish and sediment from lakes in the Atchafalaya River Basin and to...
Comment on “Evaluation of slug tests in wells containing a finite-thickness skin” by C. R. Faust and J. W. Mercer
Allen F. Moench, Paul A. Hsieh
1985, Water Resources Research (21) 1459-1461
No abstract available....
Landsat-faciliated vegetation classification of the Kenai National Wildlife Refuge and adjacent areas, Alaska
Stephen S. Talbot, M.B. Shasby, T.N. Bailey
1985, Conference Paper, Pecora 10 Symposium
A Landsat-based vegetation map was prepared for Kenai National Wildlife Refuge and adjacent lands, 2 million and 2.5 million acres respectively. The refuge lies within the middle boreal sub zone of south central Alaska. Seven major classes and sixteen subclasses were recognized: forest (closed needleleaf, needleleaf woodland, mixed);...
New horizons in remote sensing for forest and range resource management
D. T. Lauer
1985, Conference Paper, Pecora 10 Symposium
Forest and range resource scientists were among the first to recognize the potential of aircraft and satellite remote sensing for management of timber, forage, water, and wildlife resource. Today, data from a variety of sensor systems are being put to practical use for inventorying, monitoring, and assessing forest and...
Ground-water data for the alluvial, buried channel, Basel Pleistocene and Dakota aquifer in west-central Iowa
Pamela K. B. Hunt, Donna L. Runkle
1985, Open-File Report 84-819
The purpose of this investigation was to determine the availability, quantity and quality of groundwater from three principal aquifers in West-Central Iowa, the alluvial, buried channel, Basal Pleistocene and the Dakota aquifers. Specific objectives were to: (1) determine the location, extent and the nature of these aquifers; (2) evaluate the...
Application of a ground-water flow digital model in evaluating alternate dewatering systems in the Río Grande de Arecibo alluvial valley, Puerto Rico
Vicente Quinones-Aponte, Heriberto Torres-Sierra
1985, Conference Paper, American Water Resources Association, Technical Publication Series TPS-85-1
Rate and depth of pedogenic-carbonate accumulation in soils: Formation and testing of a compartment model.
Leslie D. McFadden, John Tinsley
1985, GSA Special Papers (203) 23-41
The rate and depth of pedogenic carbonate accumulation in soils formed in Quaternary alluvium may be viewed as a theoretical problem that involves the mutual interaction of several independent and dependent soil-forming variables. We propose a model for carbonate accumulation in which the soil column is defined by a vertical...
