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Calibration and maintenance of vertical-axis type current meters
George F. Smoot, Charles E. Novak
1968, Techniques of Water-Resources Investigations 08-B2
The purpose of this chapter is to describe the procedures used in the manufacture and calibration of current meters and to present in detail information pertinent to their proper maintenance and repair. Recent intensive studies on the calibration of current meters and the effects of wear of the component parts...
Some statistical tools in hydrology
H. C. Riggs
1968, Techniques of Water-Resources Investigations 04-A1
This chapter of 'Techniques of Water-Resources Investigations' provides background material needed for understanding the statistical procedures most useful in hydrology; it furnishes detailed procedures, with examples, of regression analyses; it describes analysis of variance and covariance and discusses the characteristics of hydrologic data....
Preliminary lunar exploration plan of the Marius Hills region of the moon
Thor Nels Vincent Karlstrom, John Francis McCauley, G.A. Swann
1968, Open-File Report 68-155
This report presents a preliminary Lunar Exploration Plan (LEP) for the Marius Hills region of the Moon. The Marius Hills region is one of the six sites considered by the GLEP site selection group as a candidate for manned exploration using mobility systems allowing a radius of operation of at...
Potential for potash and other evaporite mineral resources in West Pakistan
C.L. Jones
1968, Open-File Report 68-153
Reconnaissance examination of marine evaporites in West Pakistan has revealed a highly favorable resource situation with respect to anhydrite, and a potentially favorable position for potash and sulfur. Further work is needed to evaluate the preliminary interpretations made during the present study. The establishment of a potash resource organization within...
Mineral investigations between Khamis Mushayt and Bi'r Idimah, Saudi Arabia
William C. Overstreet, U.S. Geological Survey Saudi Arabian Project
1968, Open-File Report 68-208
Mineral investigations between Khamis Mushayt and Bi'r Idimah in the Asir quadrangle, sheet 1-217 (Brown and Jackson, 1959) began September 24, 1964 and ended November 20. Total distance travelled was 6264 kilometers. Sixteen camps were set, and 483 samples of various geologic materials, principally wadi sands, laterite, and gossan, were...
Electrical analog analysis of ground-water depletion in central Arizona
T. W. Anderson
1968, Water Supply Paper 1860
The Salt River Valley and the lower Santa Cruz River basin are the two largest agricultural areas in Arizona. The extensive use of ground water for irrigation has resulted in the need for a thorough appraisal of the present and future ground-water resources. The ground-water reservoir provides 80 percent (3.2...
Effects of the Alaska earthquake of March 27, 1964, on shore processes and beach morphology
Kirk W. Stanley
1968, Professional Paper 543-J
Some 10,000 miles of shoreline in south-central Alaska was affected by the subsidence or uplift associated with the great Alaska earthquake of March 27, 1964. The changes in shoreline processes and beach morphology that were suddenly initiated by the earthquake were similar to those ordinarily caused by gradual changes in...