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165626 results.

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Page 4392, results 109776 - 109800

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Predictive spatial modeling of narcotic crop growth patterns
Frederick A. Waltz, D. G. Moore
1986, Open-File Report 86-7
Spatial models for predicting the geographic distribution of marijuana crops have been developed and are being evaluated for use in law enforcement programs. The models are based on growing condition preferences and on psychological inferences regarding grower behavior. Experiences of local law officials were used to derive the initial model,...
Geohydrologic data along the Salt-Gila aqueduct of the central Arizona project in Maricopa and Pinal counties, Arizona
B.L. Wallace, B.M. Wrege, H. H. Schumann
1986, Open-File Report 86-236
The U.S. Geological Survey, in cooperation with the U.S. Bureau of Reclamation, is conducting an investigation of land subsidence and earth fissures along the Salt-Gila aqueduct to identify hazard zones and to provide design data for the Central Arizona Project aqueducts. Thirty-three test holes were drilled along the Salt-Gila aqueduct...
Water resources scientific information center
C. William Cardin, J.T. Campbell
1986, Open-File Report 86-303
The Water Resources Scientific Information Center (WRSIC) acquires, abstracts and indexes the major water resources related literature of the world, and makes information available to the water resources community and the public. A component of the Water Resources Division of the US Geological Survey, the Center maintains a searchable computerized...
Chemical quality of ground water in Salt Lake Valley, Utah, 1969-85
K.M. Waddell, R. L. Seiler, D. K. Solomon
1986, Open-File Report 86-138
During 1979-84, 35 wells completed in the principal aquifer in the Salt Lake Valley, Utah, that had been sampled during 1962-67 were resampled to determine if water quality changes had occurred. The dissolved solids concentration of the water from 13 of the wells has increased by more than 10% since...
Vector data structure conversion at the EROS Data Center
Jan W. van Roessel, S. W. Doescher
1986, Open-File Report 87-309
With the increasing prevalence of GIS systems and the processing of spatial data, conversion of data from one system to another has become a more serious problem. This report describes the approach taken to arrive at a solution at the EROS Data Center. The report consists of a main section...
Use and availability of continuous streamflow records in Wyoming
J.R. Schuetz
1986, Open-File Report 85-685
This report documents a survey that identifies local, State, and Federal uses of data from 139 continuous-record, surface-water stations, presently (1984) operated by the Wyoming District of the U. S. Geological Survey; identifies sources of funding pertaining to collections of streamflow data; and presents frequency of data availability. Uses of...