Global Acoustic Mapping of Ocean Temperatures (GAMOT)
Quarterly progress rept. no. 2, 1 Jul-30 Sep 1993
WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
Pagination or Media Count:
Work continues on all GAMOT Tasks as described in ARPA Grant No MDA972-93-1-0004 and remains on schedule with the exception of Tasks C and D. Task C work is behind schedule and there will be a delay in the initial deployment of the operational SSARs of approximately six weeks. Task D, the autonomous mooring, is behind schedule and the total delay cannot be calculated until the impact of the increased scope of Task D, which now includes procurement of a 70 Hz source, can be determined. Task A involves the success of ray theory in identifying multipaths arrivals at basin scales. The Task B tasks and deliverables are on schedule. Remote forced NE Pacific NEP model runs have been completed for 1961-1991 driven by equatorial Kelvin waves. Rossby waves propagating off the coast are shown to significantly alter acoustic travel times. All elements of the SSAR development are underway and on schedule. The initial SSAR prototype test deployment was conducted. Guidelines for the scope of Task D include 1 Frequency of the source will be 70 Hz 2 The schedule could be extended to accommodate the additional engineering and source procurement lead time and 3 Consider both m-sequence and FM coding sources.
- Physical and Dynamic Oceanography