Accession Number : AD0705190

Title :   RESEARCH IN SEISMOLOGY.

Descriptive Note : Final rept. 31 Oct 68-30 Nov 69,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF GEOPHYSICS

Personal Author(s) : Gangi,Anthony F.

Report Date : 16 JAN 1970

Pagination or Media Count : 68

Abstract : A microseism frequency and amplitude tracker has been designed, analyzed, constructed and tested in the laboratory. The microseism tracker demonstrates that it is possible to construct a wide band frequency tracker at microseism frequencies. A relationship between the auto-correlation and cross-correlation of noise in seismic arrays has been obtained and tested using noise data from LASA. The impedance and radiated displacements of a wide band, seismic modelling theorem has been derived starting from seismic reciprocity. Babinet's principlefor elastic waves has been derived using the seismic representation theorem. (Author)

Descriptors :   (*SEISMOLOGICAL STATIONS, NOISE), PHASED ARRAYS, MICROSEISMS, BROADBAND, STATISTICAL FUNCTIONS, MATHEMATICAL MODELS

Subject Categories : Seismology
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE