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Page 1523, results 38051 - 38075

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Not all publications have extents, not all extents are completely accurate
Diffusivity of a glacial-outwash aquifer by the floodwave- response technique
R.J. Reynolds
1987, Groundwater (25) 290-299
Aquifer diffusivity (transmissivity divided by storage coefficient) was calculated for three sites in a glacial-autwash valley aquifer near Cortland, New York from water-level fluctuations induced by rises in stream stage. The observed response data were analyzed through use of a one-dimensional floodwave-response model to calculate the theoretical head response in...
Design of a spatial data structure using the relational normal forms
Jan W. van Roessel
1987, International Journal of Geographical Information Systems (1) 33-50
In previous work, a relational data structure aimed at the exchange of spatial data between systems was developed. As this data structure was relational it was of first normal form, but compliance with the higher normal forms was not investigated. Recently, a new procedural method for composing fully normalized data...
Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys
E.A. Horvath, E. A. Fosnight, A. A. Klingebiel, D. G. Moore, J.E. Stone
W.U. Reybold, G.W. Petersen, editor(s)
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
A methodology has been developed to create a spatial database by referencing digital elevation, Landsat multispectral scanner data, and digitized soil premap delineations of a number of adjacent 7.5-min quadrangle areas to a 30-m Universal Transverse Mercator projection. Slope and aspect transformations are calculated from elevation data and grouped according...
Composition of fluid inclusions in Permian salt beds, Palo Duro Basin, Texas, U.S.A.
E. Roedder, W. M. d’Angelo, A. F. Dorrzapf Jr., P. J. Aruscavage
1987, Chemical Geology (61) 79-90
Several methods have been developed and used to extract and chemically analyze the two major types of fluid inclusions in bedded salt from the Palo Duro Basin, Texas. Data on the ratio K: Ca: Mg were obtained on a few of the clouds of tiny inclusions in "chevron" salt, representing...
ECONOMICS AND THE SEARCH FOR OFFSHORE HEAVY MINERAL DEPOSITS.
E. D. Attanasi, J.H. DeYoung Jr.
1987, Marine Mining (6) 323-337
This paper examines the relative importance, in terms of a deposit's commercial status, of physical characteristics of onshore titanium-bearing heavy-mineral placer deposits, and applies these findings to the search for and evaluation of offshore deposits. Results obtained by applying statistical discriminant analysis show that the characteristics most useful for predicting...
US GEOLOGICAL SURVEY'S NATIONAL SYSTEM FOR PROCESSING AND DISTRIBUTION OF NEAR REAL-TIME HYDROLOGICAL DATA.
William G. Shope Jr.
Rodda J.C.Matalas N.C., editor(s)
1987, Conference Paper, IAHS Publication (International Association of Hydrological Sciences)
The US Geological Survey is utilizing a national network of more than 1000 satellite data-collection stations, four satellite-relay direct-readout ground stations, and more than 50 computers linked together in a private telecommunications network to acquire, process, and distribute hydrological data in near real-time. The four Survey offices operating a satellite...
Alaska interim land cover mapping program
Water Resources Division, U.S. Geological Survey
1987, Data Users Guide 7
In order to meet the requirements of the Alaska National Interest Lands Conservation Act (ANILCA) for comprehensive resource and management plans from all major land management agencies in Alaska, the USGS has begun a program to classify land cover for the entire State using Landsat digital data. Vegetation and land...
Ground-water resources of the Laura area, Majuro Atoll, Marshall Islands
S. N. Hamlin, S. S. Anthony
1987, Water-Resources Investigations Report 87-4047
The water system that supplies the heavily populated Dalap-Uliga-Darrit (DUD) area of Majuro atoll, Marshall Island, relies almost entirely upon airstrip catchment of rain water. Droughts cause severe water supply problems and water rationing is required, even during periods of normal rainfall. The Laura area contains a substantial lens of...
Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, southeastern Chester County, Pennsylvania, July and August 1986
John A. Garges
1987, Water-Resources Investigations Report 86-4352
A water table contour map of the lower Paleozoic and Precambrian crystalline rocks of southeastern Chester County, Pennsylvania was constructed on the basis of water levels measured in 261 wells in July and August 1986, elevations of 11 springs that were flowing in July and August 1986, and water levels...
Partitioning potential fish yields from the Great Lakes
D.H. Loftus, C.H. Olver, Edward H. Brown, P.J. Colby, Wilbur L. Hartman, D.H. Schupp
1987, Canadian Journal of Fisheries and Aquatic Sciences (44) 417-424
We proposed and implemented procedures for partitioning future fish yields from the Great Lakes into taxonomic components. These projections are intended as guidelines for Great Lakes resource managers and scientists. Attainment of projected yields depends on restoration of stable fish communities containing some large piscivores that will use prey efficiently,...
Acute bioassays and hazard evaluation of representative contaminants detected in Great Lakes fish
Dora R. May Passino, Stephen B. Smith
1987, Environmental Toxicology and Chemistry (6) 901-907
We have provided a hazard ranking for 19 classes of compounds representing many of the nearly 500 organic compounds identified by gas chromatography-mass spectrometry in lake trout (Salvelinus namaycush) and walleye (Stizostedion vitreum vitreum) from the Great Lakes and Lake St. Clair. We initially made a provisional hazard ranking based...
Seismicity map of the state of Pennsylvania
C. W. Stover, B.G. Reagor, S. T. Algermissen
1987, Miscellaneous Field Studies Map 1280
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Pennsylvania, even though earthquakes...
Water Resources Data for West Virginia, Water Year 1985
W.N. Embree, E.A. Friel, F.M. Taylor
1987, Water Data Report WV-85-1
Water resources data for the 1985 water year for West Virginia consist of records of stage, discharge, and water quality of streams; contents of reservoirs; and water levels and water quality of observation wells. This report contains discharge records for 75 streamflow-gaging stations; stage only records for 12 gaging stations,...
Seismicity map of the state of Florida
B. Glen Reagor, Carl W. Stover, Sylvester Theodore Algermissen
1987, Miscellaneous Field Studies Map 1056
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Florida, even though earthquakes...
The role of stand history in assessing forest impacts
V.H. Dale, T.W. Doyle
1987, Environmental Management (11) 351-357
Air pollution, harvesting practices, and natural disturbances can affect the growth of trees and forest development. To make predictions about anthropogenic impacts on forests, we need to understand how these factors affect tree growth. In this study the effect of disturbance history on tree growth and stand structure was examined...
Effects of feeding and fasting on wolf blood and urine characteristics
Glenn D. DelGiudice, Ulysses S. Seal, L. David Mech
1987, Journal of Wildlife Management (51) 1-10
Feeding and fasting trials were conducted with 2 groups (A and B) of 4 gray wolves (Canis lupus) each during January 1980. The groups were fed for 9 days and fasted for 10 days in a cross-over design. Blood and urine samples and weight data were collected every 2-3 days...
Immunization of salmonids against Yersinia ruckeri: Significance of humoral immunity and cross protection between serotypes
R. C. Cipriano, T. Ruppenthal
1987, Journal of Wildlife Diseases (23) 545-550
Brook trout (Salvelinus fontinalis) were immunized with bacterins containing either Serotype 1 or 2 isolates of Yersinia ruckeri to determine the relative degree of cross-protection afforded when the fish were challenged with the homologous or heterologous serotype. While fish immunized with pH-lysed bacterins produced highly...
Survival of striped bass larvae and yearlings in relation to contaminants and water quality in the upper Chesapeake Bay
L. W. Hall Jr., Alfred E. Pinkney, L. Herman, Susan E. Finger
1987, Archives of Environmental Contamination and Toxicology (16) 391-400
This study was designed to evaluate survival of striped bass yolk-sac larvae and yearlings at three locations in their natural spawning habitat in the upper Chesapeake Bay (Chesapeake and Delaware Canal) using “in-situ” chambers; correlate larval and yearling survival with the presence of 11 water quality parameters, 10 inorganic contaminants...
Design of airlift pumps for water circulation and aeration in aquaculture
N. C. Parker, M. A. Suttle
1987, Aquacultural Engineering (6) 97-110
Water flow rates were measured in airlift pumps 3·75-30 cm in diameter to develop performance data that might be useful to aquaculturists. Flows were determined when submergence of airlifts was 100% and when the center-line of the discharge was between 12·5 cm above and 5 cm below the water surface....
Re-registration of rotenone: A state/federal cooperative effort
R.J. Sousa, F. P. Meyer, R. A. Schnick
1987, Fisheries (12) 9-13
Rotenone is an effective fish toxicant used by virtually all states to manage fish populations. In response to an allegation that rotenone might cause mammary tumors, the U.S. Environmental Protection Agency, in 1976, announced that it was considering listing rotenone as an unsafe substance. To determine if these allegations were...
Sedimentation in Lake Onalaska, Navigation Pool 7, Upper Mississippi River, since impoundment
C. E. Korschgen, G. A. Jackson, L.F. Muessig, D. Southworth
1987, Journal of the American Water Resources Association (23) 221-226
Sediment accumulation was evaluated in Lake Onalaska a 2800-ha backwater impoundment on the Upper Mississippi River. Computer programs were used to process fathometric charts and generate an extensive data set on water depth for the lake. Comparison of 1983 survey data with pre-impoundment (before 1937) data showed that Lake Onalaska...
An empirical model for estimating phytoplankton productivity in estuaries
B.E. Cole, J. E. Cloern
1987, Marine Ecology Progress Series (396) 299-305
e have previously shown that primary productivity in San Francisco Bay, USA, is highly correlated with phytoplankton biomass B (chlorophyll a concentration) and an index of light avallability in the photic zone, 2, I, (photic depth times surface irradiance). To test the generality of this relation, we compiled data from...
Use of slope, aspect, and elevation maps derived from digital elevation model data in making soil surveys
A. A. Klingebiel, E. H. Horvath, D. G. Moore, W.U. Reybold
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
Maps showing different classes of slope, aspect, and elevation were developed from U.S. Geological Survey digital elevation model data. The classes were displayed on clear Mylar at 1:24 000-scale and registered with topographic maps and orthophotos. The maps were used with aerial photographs, topographic maps, and other resource data to...
Dehydration of seabird prey during transport to the colony: Effects on wet weight energy densities
W.A. Montevecchi, John F. Piatt
1987, Canadian Journal of Zoology (65) 2822-2824
We present evidence to indicate that dehydration of prey transported by seabirds from capture sites at sea to chicks at colonies inflates estimates of wet weight energy densities. These findings and a comparison of wet and dry weight energy densities reported in the literature emphasize the importance of (i) accurate...