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Estuarine studies in upper Grays Harbor, Washington
Joseph P. Beverage, Milton N. Swecker
1969, Water Supply Paper 1873-B
Improved management of the water resources of Grays Harbor, Wash., requires more data on the water quality of the harbor and a better understanding of the influences of industrial and domestic wastes on the local fisheries resources. To provide a more comprehensive understanding of these influences, the U.S. Geological Survey...
Optical method for determining particle sizes of coarse sediment
John R. Ritter, Edward J. Helley
1969, Techniques of Water-Resources Investigations 05-C3
A particle-size analyzer was used to determine particle sizes of sediment by an optical technique based on an adjustable circle of light which determines the intermediate axis of the sediment particles shown on a photograph. Data from counting particles in various size ranges can be presented either in the form...
Seismic activity in the Sunnyside mining district, Utah, during 1967
Barton K. Barnes, C. Richard Dunrud, Jerome Hernandez
1969, Open-File Report 69-15
A seismic monitoring network near Sunnyside, Utah, consisting of a triangular array of seismometer stations that encompasses most of the mine workings in the district, recorded over 50,000 local earth tremors during 1967. About 540 of the tremors were of sufficient magnitude to be accurately located. Most of these were...
Rapid heat-flowing surveying of geothermal areas, utilizing individual snowfalls as calorimeters
Donald E. White
1969, Journal of Geophysical Research (74) 5191-5201
Local differences in rate of heat transfer in vapor and by conduction through the ground in hot spring areas are difficult and time-consuming to measure quantitatively. Individual heavy snowfalls provide a rapid low-cost means of measuring total heat flow from such ground. After a favorable snowfall (heavy, brief duration, little...
Airborne fluorometer applicable to marine and estuarine studies
George E. Stoertz, William R. Hemphill, David A. Markle
1969, Marine Technology Society Journal (3) 11-26
An experimental Fraunhofer line discriminator detected solar-stimulated yellow fluorescence (5890 A) emitted by Rhodamine WT dye in aqueous solutions. Concentration of 1 part per billion was detected in tap water 1/2-meter deep. In extremely turbid San Francisco Bay, dye was monitored in concentrations of less than 5 parts per billion...
Some guidelines for remote sensing in hydrology
Charles J. Robinove, Daniel G. Anderson
1969, Journal of the American Water Resources Association (5) 10-19
Remote sensing in the field of hydrology is beginning to be applied to significant problems, such as thermal pollution, in many programs of the Federal and State Governments as well as in operation of many private organizations. The purpose of this paper is to guide the hydrologist to a better...
Structural geologic interpretations from radar imagery
Robert G. Reeves
1969, Geological Society of America Bulletin (80) 2159-2164
Certain structural geologic features may be more readily recognized on sidelooking airborne radar (SLAR) images than on conventional aerial photographs, other remote sensor imagery, or by ground observations. SLAR systems look obliquely to one or both sides and their images resemble aerial photographs taken at low sun angle with the...
Surveying the earth's resources from space
William T. Pecora
1969, TRW Space Log (9) 2-15
During the past 4 years, scientists of the Geological Survey, in cooperation with NASA, have been investigating the feasibility and practicality of using remote-sensor data collected during conventional aircraft flights. This work is aimed at developing techniques for gathering facts about the earth's natural resources from satellites carrying sophisticated remote-sensing...