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Page 4345, results 108601 - 108625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A joint NOAA/USGS study to evaluate satellite assessment of land surface features and climatic variables
Kevin P. Gallo, J.D. Tarpley, Stephen M. Howard, D. G. Moore
1987, Conference Paper, Pecora XI Symposium
Data collection and preliminary analyses have begun for a study that will evaluate the usefulness of satellite data for assessment of land surface features and climatic variables. The objective of the study is to determine what relationships exist between routinely available ground-based climatic and land surface information and satellite-obtained...
Age-specificity of black-capped chickadee survival rates: Analysis of capture-recapture data
G. Loery, James D. Nichols, Kenneth H. Pollock, James E. Hines
1987, Ecology (68) 1038-1044
The ornithological literature indicates a widespread belief in two generalizations about the age—specificity of avian survival rates: (1) survival rates of young birds for some period following fledging are lower than those of adults, and (2) after reaching adulthood survival rates are constant for birds of all ages. There is...
Producing Alaska interim land cover maps from Landsat digital and ancillary data
Katherine Fitzpatrick-Lins, Eileen Flanagan Doughty, Mark Shasby, Thomas R. Loveland, Susan Benjamin
1987, Conference Paper, Pecora XI Symposium
In 1985, the U.S. Geological Survey initiated a research program to produce 1:250,000-scale land cover maps of Alaska using digital Landsat multispectral scanner data and ancillary data and to evaluate the potential of establishing a statewide land cover mapping program using this approach. The geometrically corrected and resampled Landsat...
Data integration using color space transforms
Jay W. Feuquay
1987, Pecora XI Symposium 326-326
The demand for increased spatial resolution without sacrificing spectral discrimination can be fulfilled by integration of data from different sensor systems and satellite programs. Data of high spatial resolution are frequently available in panchromatic (black-and-white) form rather than multispectral. Techniques gave been developed to combine the higher resolution...
Digital processing techniques and film density calibration for printing image data
Pat S. Chavez, Joseph A. McSweeney, Douglas R. Binnie
1987, Conference Paper, Pecora XI Symposium
Satellite image data that cover a wide range of environments are being used to make prints that represent a map type product. If a wide distribution of these products is desired, they are printed using lithographic rather than photographic procedures to reduce the cost per print. Problems are...
BIA interpretation techniques for vegetation mapping using thematic mapper false color composites (interim report for San Carlos Reservation)
W.J. Bonner, T.C. English, R. H. Haas, T.R. Feagan, R.A. McKinley
1987, Pecora XI Symposium 291-292
The Bureau of Indian Affairs (BIA) is responsible for the natural resource management of approximately 52 million acres of Trust lands in the contiguous United States. The lands are distributed in a "patchwork" fashion throughout the country. Management responsibilities on these areas include: minerals, range, timber, fish and...
A color-communication scheme for digital imagery
Alex Acosta
1987, Pecora XI Symposium 253-272
Color pictures generated from digital images are frequently used by geologists, foresters, range managers, and others. These color products are preferred over black and white pictures because the human eye is more sensitive to color differences than to various shades of gray. Color discrimination is a function of...
Overview of the land analysis system (LAS)
Bruce K. Quirk, Lyndon R. Olseson
1987, Conference Paper, Pecora XI Symposium
The Land Analysis System (LAS) is a fully integrated digital analysis system designed to support remote sensing, image processing, and geographic information systems research. LAS is being developed through a cooperative effort between the National Aeronautics and Space Administration Goddard Space Flight Center and the U. S. Geological Survey...
New techniques for the quantification and modeling of remotely sensed alteration and linear features in mineral resource assessment studies
C. M. Trautwein, L. C. Rowan
1987, Pecora XI Symposium 86-87
Linear structural features and hydrothermally altered rocks that were interpreted from Landsat data have been used by the U.S. Geological Survey (USGS) in regional mineral resource appraisals for more than a decade. In the past, linear features and alterations have been incorporated into models for assessing mineral resources potential...
Application of combined Landsat thematic mapper and airborne thermal infrared multispectral scanner data to lithologic mapping in Nevada
M. H. Podwysocki, W. J. Ehmann, D.W. Brickey
1987, Pecora XI Symposium 79-82
Future Landsat satellites are to include the Thematic Mapper (TM) and also may incorporate additional multispectral scanners. One such scanner being considered for geologic and other applications is a four-channel thermal-infrared multispectral scanner having 60-m spatial resolution. This paper discusses the results of studies using combined Landsat TM...
Mapping contact metamorphic aureoles in Extremadura, Spain, using Landsat thematic mapper images
L. C. Rowan, C. Anton-Pacheco, D.W. Brickey, M.J. Kingston, A. Payas
1987, Pecora XI Symposium 77-78
In the Extremadura region of western Spain, Ag, Pb, Zn, and Sn deposits occur in the pieces of late Hercynian granitic plutons and near the pluton contacts in late Proterozoic slate and metagraywacke that have been regionally metamorphosed to the green schist facies. The plutons generally are well exposed...
Opportunities to protect instream flows in Colorado and Wyoming
Terrence L. Trembly
1987, Report
This document combines the efforts of several individuals, agencies, and organizations toward a common objective: the identification, description, and preliminary evaluation of promising opportunities for protecting instream uses of water under existing laws in Colorado and Wyoming. This report is intended for the use of State and Federal planning and management...
Calculation of nonlinear confidence and prediction intervals for ground-water flow models
Richard L. Cooley, Aldo V. Vecchia
1987, Journal of the American Water Resources Association (23) 581-599
A method is derived to efficiently compute nonlinear confidence and prediction intervals on any function of parameters derived as output from a mathematical model of a physical system. The method is applied to the problem of obtaining confidence and prediction intervals for manually-calibrated ground-water flow models. To...
Bedform alignment in directionally varying flows
D. M. Rubin, R. E. Hunter
1987, Science (237) 276-278
Many kinds of sediment bedforms are presumed to trend either normal or parallel to the direction of sediment transport. For this reason, the trend of bedforms observed by remote sensing or by field observations is commonly used as an indicator of the direction of sediment transport. Such presumptions regarding bedform...
Preliminary results from a study of natural slope failures triggered by the storm of November 3.5.1985, Germany Valley, West Virginia and Virginia: Chapter 4 in Landslides of eastern North America
Robert B. Jacobson, Elizabeth D. Cron, John P. McGeehin
1987, Circular 1008-4
During the first five days of November 1985, a low-pressure system in the Ohio River valley combined with a low-pressure system referred to as Tropical Storm Juan to produce heavy rainfall in the Potomac, James, and Rappahannock River basins. Severe flooding accompanied the rainfall; 43 lives were lost and the...
Seismology of the continental crust and upper mantle
Walter D. Mooney
1987, Reviews of Geophysics (25) 1168-1176
More seismological studies of the continental crust and sub‐crustal lithosphere of the United States have been completed in the past four years than at any other similar period, and a continued growth in activity is likely to continue for years to come. Several trends account for this...
Fracture characterization by means of attenuation and generation of tube waves in fractured crystalline rock at Mirror Lake, New Hampshire
E.L. Hardin, C.H. Cheng, F.L. Paillet, J.D. Mendelson
1987, Journal of Geophysical Research B: Solid Earth (92) 7989-8006
Results are presented from experiments carried out in conjunction with the U. S. Geological Survey at the Hubbard Brook Experimental Forest near Mirror Lake, New Hampshire. The study focuses on our ability to obtain orientation and transmissivity estimates of naturally occurring fractures. The collected data set includes a four-offset hydrophone...
Site 612
Claude (Wylie) Poag, Anthony B. Watts
1987, Initial reports of the Deep Sea Drilling Project (95) 31-153
No abstract available. ...
Middle to late Miocene canyon cutting on the New Jersey continental slope: Biostratigraphic and seismic stratigraphic evidence (DSDP/Site 612)
K.G. Miller, A.J. Melillo, Gregory S. Mountain, J.A. Farre, Claude (Wylie) Poag
1987, Geology (15) 509-512
We have identified and dated a major Miocene erosional surface (M1) on the New Jersey continental slope. This surface was penetrated at Deep Sea Drilling Project (DSDP) Site 612, which was drilled near the thalweg of a buried V-shaped canyon. Biostratigraphic data at Site 612 firmly constrain the age of...
Modeling potential impacts of the Garrison Diversion Unit project on Sand Lake and Arrowwood National Wildlife Refuges: a feasibility analysis
David B. Hamilton, Gregor T. Auble, Adrian H. Farmer, James E. Roelle
1987, Report
The Garrison Diversion Unit (GDU) of the Pick-Sloan Missouri Basin program was authorized in 1965, with the purpose of diverting Missouri River water to the James River for irrigation, municipal and industrial water supply, fish and wildlife habitat, recreation, and flood control. The project was reauthorized in 1986, with the...
Persistence of DDT and metabolites in wildlife from Washington State orchards
L. J. Blus, Charles J. Henny, C. J. Stafford, R. A. Grove
1987, Archives of Environmental Contamination and Toxicology (16) 467-476
Residues of the DDT group, particularly p,p′-DDT (DDT) were detected in high or unusual amounts in some wildlife samples collected in fruit orchards near Wenatchee, Washington from 1979 to 1983. Samples of birds contained p,p′-DDE (DDE) and DDT in ratios (DDE:DDT) as low as 2.6:1 in eggs and 1.9:1 in brains....
Big Soda Lake (Nevada). 2. Pelagic sulfate reduction
Richard L. Smith, Ronald S. Oremland
1987, Limnology and Oceanography (32) 794-803
The epilimnion of hypersaline, alkaline, meromictic Big Soda Lake contains an average 58 mmol sulfate liter−1 and 0.4 µmol dissolved iron liter−1. The monimolimnion, which is permanently anoxic, has a sulfide concentration ranging seasonally from 4 to 7 mmol liter−1. Depth profiles of sulfate reduction in the monimolimnion, assayed with a 35S tracer...
Big Soda Lake (Nevada). 3. Pelagic methanogenesis and anaerobic methane oxidation
Niels Iversen, Ronald S. Oremland, Michael J. Klug
1987, Limnology and Oceanography (32) 804-814
In situ rates of methanogenesis and methane oxidation were measured in meromictic Big Soda Lake. Methane production was measured by the accumulation of methane in the headspaces of anaerobically sealed water samples; radiotracer was used to follow methane oxidation. Nearly all the methane oxidation occurred in the anoxic zones of...
Rapid assay for microbially reducible ferric iron in aquatic sediments
Derek R. Lovely, Elizabeth Philips
1987, Applied and Environmental Microbiology (53) 1536-1540
The availability of ferric iron for microbial reduction as directly determined by the activity of iron-reducing organisms was compared with its availability as determined by a newly developed chemical assay for microbially reducible iron. The chemical assay was based on the reduction of poorly crystalline ferric iron by hydroxylamine under...