The Original Data as Observed by R/V COLUMBUS ISELIN during the Equatorial Oceanographic Experiment GATE 1974,
Abstract
During the second phase of GATE, a current profiling experiment was carried out by research vessels from four nations. The vessels operated at or near the equator in the vicinity of the following longitudes: R/V COLUMBUS ISELIN (U.S.A.) near 28 deg W; R/V ALEXANDER von HUMBOLDT (G.D.R.) near 24 deg W; R/V ACADEMICIAN KURCHATOV (U.S.S.R) near 23 deg 30 min W; and R/V CAPRICORNE (France) near 10 deg W KURCHATOV worked at a fixed position; the other three vessels operated as roving ships. All vessels were equipped with profiling current meters (PCM's), provided by the University of Miami (see Dueing and Johnson, 1972 for details on instrumentation). Current and temperature profiles were taken in the vicinity of anchored radar reference buoys. Profiling operations were routinely carried out to a water depth of 600 meters, lasting about 2-1/2 hours per profile. During the observation of a relative current profile, radar distance and azimuth to a reference buoy were observed at 10 minute intervals. A mean drift vector over ground was computed and subsequently used to transform the relative current profile into an absolute profile. The relative error of the measurements made by the ISELIN is approximately + or - 8% of the values of the flow components.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1978
- Accession Number
- ADA065105
Entities
People
- Otis Brown
- Robert Evans
- Walter Dueing
- Zachariah Hallock
Organizations
- Rosenstiel School of Marine, Atmospheric, and Earth Science