In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 88, No. S1 ( 1990-11-01), p. S118-S118
Abstract:
Mesoscale variability of the Gulf Stream southern recirculation gyre has been investigated via acoustic tomography. A reciprocal tomographic experiment was carried out in the region just south of the Gulf Stream mean path at 37N, 55W. A pentagonal array of transceivers, with a nominal leg separation of 100 km, transmitted a pseudorandom sequence at a frequency of 400 Hz, with a bandwidth of 100 Hz. The experiment lasted for 10 months from October 1988 through August 1989. Travel-time inversions for temperature, current velocity, and vorticity have been calculated for the array. The oceanography of the region is shown to be largely influenced by local meandering of the GulfStream and its associated Rossby wave radiation field. The estimated time series of area-averaged relative vorticity shows the most important fluctuations to occupy the mesoscale frequency band.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1990
detail.hit.zdb_id:
1461063-2
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