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National Institute for Global Environmental Change. Semi-annual report, July 1, 1991--December 31, 1991

Description: This document is the Semi-Annual Report of the National Institute for Global Environmental Change for the reporting period July 1 to December 31, 1991. The report is in two parts. Part I presents the mission of the Institute, examples of progress toward that mission, a brief description of the revised management plan, and the financial report. Part II presents the statements of the Regional Center Directors along with progress reports of the projects written by the researchers themselves.
Date: April 1, 1992
Creator: Werth, G. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Post-piledriver concept letter

Description: This is the concept for a series of post-shot investigations at the Piledriver site, Area 15, Nevada Test Site (NTS), to gain information on: Chimney geometry and associated wall rock conditions resulting from a deeply buried (1500-ft) nuclear explosion in granite; The characteristics and distribution of rubble and radioactivity in the chimney; and Data pertinent to in-situ leaching. These categories define the three phases of this proposal in chronological order. The technical programs under P… more
Date: July 1, 1967
Creator: Werth, G. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On reducing the amplitude of surface waves by source arrays

Description: The Geneva conference of experts stated that surface waves help define the nature of a seismic perturbation. A `phase equalization` method has been proposed by several seismologists to determine the polarity of the source using crustal surface waves. In this report a horizontal source array is designed which will reduce the amplitude of the crustal surface waves by a factor of five. Experimental data from Geophysical Prospecting is cited to support the effectiveness of such arrays. It is though… more
Date: November 23, 1959
Creator: Werth, G. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental evidence to support the double head wave method of generating a rare faction first motion

Description: An earlier report suggested a double headwave method of generating a rarefaction first motion. In this method a geologic situation is selected so that energy that has been critically refracted once above the shot and once below shot arrives first. Since the theory of headwaves gives in the usual stationary phase approximation a ninety degree phase shift for each critical refraction, energy that has been critically refracted twice produces a 180 degree phase shift. Oil well data was presented to… more
Date: November 25, 1959
Creator: Werth, G. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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