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Title: Seismic and Environmental Characteristics of the Sensor Test Areas in the Panama Canal Zone. Report 1, Dry-Season Condition
Authors: Link, Lewis E. (Lewis Edward), 1946-
West, Harold W.
Benn, Bob O.
Mobility and Environmental Systems Laboratory (U.S.)
Keywords: Seismic waves
Publisher: U.S. Army Engineer Waterways Experiment Station
Series/Report no.: Technical Report (U.S. Army Engineer Waterways Experiment Station);no. M-72-2 rept.1
Abstract: Field data were collected in the first part of a two-part study to establish seismic response characteristics, their distribution, and the environmental factors that control. them in two U. S. Army Tropic Test Center seismic sensor test areas (Gamboa and Alpha) in the Panama Canal Zone. The data are assumed to represent dry-season conditions. Detailed seismic and environmental data collected are presented, and special seismic response tests (drop-hammer, man-walking, and ambient-noise) conducted in various environmental conditions at 9 sites in the Gamboa test area and 13 sites in the Alpha test area are described. Also discussed are the results (empirical regression equations) of a multicorrelation analysis used to relate the seismic response descriptors (peak particle velocity, peak summed particle velocity, and frequency) to the environmental parameters; the techniques used for mapping the seismic responses in the test areas; and the techniques for interpreting the seismic responses and terrain factor maps in terms of seismic intrusion detector performance. Results show that the seismic response from a drop-hammer energy source can be correlated with basic environmental parameters, and that sensor performance for one walking man can be approximated for dry-season conditions. The empirical equations, combined with the terrain factor complex maps, are shown to be a means of extrapolating seismic response characteristics to other test areas ·within the limits of the dry-season data used to generate the equations. The techniques used for evaluating the performance of seismic intrusion detectors do not represent the true inter-action of the seismic signal and the sensor logic.
Description: Technical Report
Gov't Doc #: Technical Report M-72-2 Report 1
Rights: Approved for public release; distribution is unlimited
Appears in Collections:Technical Report

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