Accession Number : AD0693132
Title : ON THE APPLICATION OF AIR-COUPLED SEISMIC WAVES.
Descriptive Note : Environmental research papers no. 302,
Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
Personal Author(s) : Crowley,Francis A. ; Ossing,Henry A.
Report Date : JUL 1969
Pagination or Media Count : 43
Abstract : Seismic measurements taken on Rogers Lake Playa, Edwards AFB, California, were prompted by a concern that ground vibrations excited by F-1 rocket engines might affect the role of playa cracking. These measurements relate to other Air Force interests. Specifically, the note characterizes seismic waves excited by F-1 rockets, sonic booms, and atmospheric explosions to: (1) Playa landing areas; (2) Ground conditions affecting sonic booms and rocket firings sensed in buildings; (3) Detection of accoustic sources using seismic systems; (4) The playa's selective distortion of acoustic wave characteristics; and (5) Consideration of a playa seismic alarm system. (Author)
Descriptors : (*ROCKET ENGINE NOISE, *SEISMIC WAVES), (*SEISMIC WAVES, SOILS), (*LANDING FIELDS, CRACK PROPAGATION), PLAYAS, CRACKS, SONIC BOOM, AIRBURST, LANDING FIELDS, SOIL MECHANICS
Subject Categories : Soil Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE