In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 94, No. 3_Supplement ( 1993-09-01), p. 1802-1802
Kurzfassung:
Certain problems in acoustic thermometry of ocean climate (ATOC) require evaluating the response of modal group speeds to perturbations in the ocean sound-speed profile. Two different approaches have been taken recently by researchers, resulting in two perturbation expressions whose equivalence is not immediately evident. The first approach, used by Lynch et al. [J. Acoust. Soc. Am. 89, 648 (1991)], results in an integral equation involving the frequency derivative of the eigenfunctions. The second approach, under current investigation, yields an integral equation involving the response of the eigenfunctions to sound-speed perturbations. The two expressions are shown to be equivalent by means of their projections onto the set of modal eigenfunctions. These results are discussed in relation to group travel-time tomography.
Materialart:
Online-Ressource
ISSN:
0001-4966
,
1520-8524
Sprache:
Englisch
Verlag:
Acoustical Society of America (ASA)
Publikationsdatum:
1993
ZDB Id:
1461063-2
