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Page 6029, results 150701 - 150725

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Specific Yield--Column drainage and centrifuge moisture content
A.I. Johnson, R.C. Prill, D. A. Morris
1963, Water Supply Paper 1662-A
The specific yield of a rock or soil, with respect to water, is the ratio of (1) the volume of water which, after being saturated, it will yield by gravity to (2) its own volume. Specific retention represents the water retained against gravity drainage. The specific yield and retention when...
Ground-water levels in observation wells in Oklahoma, 1956-1960
D.L. Hart Jr.
1963, Open-File Report 63-150
The investigation of the ground-water resources of Oklahoma by the U.S. Geological Survey in cooperation with the Oklahoma Water Resources Board includes a continuing program to collect on a systematic basis records of water levels in selected observation wells. These water-level records: (1) provide an index to available ground-water supplies;...
A field method for measurement of infiltration
A.I. Johnson
1963, Water Supply Paper 1544-F
The determination of infiltration--the downward entry of water into a soil (or sediment)--is receiving increasing attention in hydrologic studies because of the need for more quantitative data on all phases of the hydrologic cycle. A measure of infiltration, the infiltration rate, is usually determined in the field by flooding basins...