Altimeter sea state bias: A new look at global range error estimates

Type Article
Date 2001-10
Language English
Author(s) Chapron Bertrand1, Vandemark D2, Elfouhaily T3, Thompson Dr3, Gaspar P4, Labroue S4
Affiliation(s) 1 : IFREMER, Ctr Brest, F-29280 Plouzane, France.
2 : NASA, Goddard Space Flight Ctr, Wallops Isl, VA 23337 USA.
3 : Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
4 : Collecte Localisat Satellites, Ramonville St Agne, France.
Source Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2001-10 , Vol. 28 , N. 20 , P. 3947-3950
WOS© Times Cited 12

A nonparametric SSB model, derived using the TOPEX altimeter, is analyzed to show a new decomposition of the form SSB = bH(s) + f(sigma (o)), where b is 0.03 and the function of radar cross section (sigma (o)) is an absolute second-order range correction residing outside the conventional nondimensional SSB model. Expected variability in the dominant bH(s) term and its ties to the long wave orbital velocity and shorter-scale slope variances are discussed using a physic ally-motivated restatement of recent EM bias theory. The geometry of steep near-breaking waves, neglected within current theory, is invoked as one plausible explanation for the observed H-s-independent SSB component.

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Chapron Bertrand, Vandemark D, Elfouhaily T, Thompson Dr, Gaspar P, Labroue S (2001). Altimeter sea state bias: A new look at global range error estimates. Geophysical Research Letters, 28(20), 3947-3950. Open Access version :