OBSERVATIONS OF THE MF OCEAN TIDE FROM GEOSAT ALTIMETRY

被引:16
作者
CARTWRIGHT, DE
RAY, RD
机构
[1] Stx, Goddard Space Flight Center, Greenbelt, Maryland
关键词
D O I
10.1029/GL017i005p00619
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Zonal averages of the 13.66‐day Mf tide are derived from one year of Geosat altimetry records. The orbit errors are reduced by 1/revolution corrections taken over long (several day) arcs. The short‐period tides are removed using a model previously derived by us from the same data. The Mf zonal averages indicate definite nonequilibrium character at nearly all latitudes. The imaginary admittances indicate a Q of at least 8; such a value is consistent with a simplified theory of coupled gravitational and vorticity modes and suggests a value for Proudman's ‘friction period’ about 123 days. Copyright 1990 by the American Geophysical Union.
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页码:619 / 622
页数:4
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