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Not all publications have extents, not all extents are completely accurate
The United States Geological Survey in Alaska; accomplishments during 1975
Edward Huntington Cobb, editor(s)
1976, Circular 733
This report of accomplishments of the U.S. Geological Survey in Alaska during 1975 is organized in two chapters. The first consists of short summaries of the important results of research projects and the second lists those reports and maps covering various phases of the geology and mineral and water resources...
Flood frequency: expected and unexpected probabilities
D. M. Thomas
1976, Open-File Report 76-775
Flood-frequency curves may be defined either with or without an ' expeced probability ' adustment; and the two curves differ in the way that they attempt to average the time-sampling uncertainties. A curve with no adustment is shown to estimate a median value of both discharge and frequency of occurrence,...
Availability of ground water in the area surrounding the Trident submarine construction facility, Kitsap County, Washington
Arnold J. Hansen, Dee Molenaar
1976, Open-File Report 76-351
General information is presented on water resources--with emphasis on ground-water occurrence and availability--in that part of Kitsap County (referred to as Trident Impact Area) that would be most affected by the development of the Trident submarine construction facility at Bangor, Washington. The estimated 1970 water use in the study area...
Geohydrology of the lowland lakes area, Anchorage, Alaska
Chester Zenone
1976, Water-Resources Investigations Report 76-22
Unconsolidated deposits, chiefly of glacial origin, make up the surficial geologic materials in the Anchorage lowland lakes area , the western part of the Anchorage glacial outwash plain. Postglacial accumulation of peat, commonly 5 to 10 feet thick, and the presence of ground water at or very near the surface...
Numerical model of the salt-wedge reach of the Duwamish River estuary, King County, Washington
Edmund A. Prych, W.L. Haushild, J.D. Stoner
1976, Professional Paper 990
A numerical model of a salt-wedge estuary developed by Fischer (1974) has been expanded and used to calculate the distributions of salinity, temperature, chlorophyll a concentration, biochemical oxygen demand, and dissolved-oxygen concentration in the Duwamish River estuary, King County, Wash. The model was used to predict the dissolved-oxygen concentrations in...
Preliminary space image lineament maps of Alaska
Ernest Hartwell Lathram, Robert G.H. Raynolds
1976, Open-File Report 76-341
Examination of images from Nimbus, NOAA and Landsat satellites has revealed a series of lineaments in the earth's surface in Alaska 1000 km or more in length (fig. 1). These lineaments occur as alinements of surface geologic structures, linear valleys or ridges, and linear changes in tonal contrast marking differences...
Monitoring irrigated land acreage using Landsat imagery: an application example
William C. Draeger
1976, Open-File Report 76-630
A demonstration of the utility of Landsat imagery for quickly and cheaply estimating irrigated land area was conducted in the Klamath River basin of Oregon. Landsat color composite images, at 1:250,000 scale and acquired on two dates during the 1975 growing season, were interpreted. Irrigated lands were delineated manually, and...
Machine-assisted analysis of Landsat data in the study of crop-soils relationships
William C. Draeger
1976, Open-File Report 76-603
To date, relatively few studies have dealt with crop-soil interactions as they affect the appearance of agricultural areas on Landsat imagery, and hence crop and soil classification or the analysis of agricultural land use.The Image 100, a computer-based data analysis system which allows an interpreter to interact directly and rapidly with Landsat computer...