Seasonal variability of the Gulf Stream from satellite altimetry
作者:
Lee‐lueng Fu,
Jorge Vazquez,
Michael E. Parke,
期刊:
Journal of Geophysical Research: Oceans
(WILEY Available online 1987)
卷期:
Volume 92,
issue C1
页码: 749-754
ISSN:0148-0227
年代: 1987
DOI:10.1029/JC092iC01p00749
数据来源: WILEY
摘要:
The nearly continuous 3.5 years of altimeter data in the western North Atlantic Ocean from the GEOS 3 mission (April 1975 to November 1978) have been used to study the seasonal variability of the Gulf Stream. The differences between altimetric measurements of sea surface height made at satellite ground track intersections, called crossovers, are utilized to construct time series of sea level variations. The results indicate that the Gulf Stream in the region off Cape Hatteras has a pronounced seasonal variability. The peak‐to‐peak amplitude of the seasonal cycle in terms of cross‐stream sea level difference is about 15 cm, with a maximum in April and a minimum in December. The result is in good agreement with historic hydrographic observations and recent direct measurements of the Gulf Stream. The mechanisms responsible for the observed seasonal variability are disc
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