Article
 

The sea state bias in altimeter estimates of sea level from collinear analysis of TOPEX data

Pubblico Deposited

Contenuto scaricabile

Scarica il pdf
https://ir.library.oregonstate.edu/concern/articles/02870x41r

Descriptions

Attribute NameValues
Creator
Abstract
  • The wind speed and significant wave height (H1/3) dependencies of the sea state is in altimeter estimates of sea level, expressed in the form ∆hSSB=bH1/3, are examined from least squares analysis of 21 cycles of collinear TOPEX data. The bias coefficient b is found to increase in magnitude with increasing wind speed up to about 12 m s–1 and decrease monotonically in magnitude with increasing H1/3. A parameterization of b as a quadratic function of wind speed only, as in the formulation used to produce the TOPEX geophysical data records (GDRs), is significantly better than a parameterization purely in terms of H1/3. However, a four-parameter combined wind speed and wave height formulation for b (quadratic in wind speed plus linear in H1/3) significantly improves the accuracy of the sea state bias correction. The GDR formulation in terms of wind speed only should therefore be expanded to account for a wave height dependence of b. An attempt to quantify the accuracy of the sea state bias correction ∆hSSB concludes that the uncertainty is a disconcertingly large 1% of H1/3.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Chelton, D.B., 1994, The sea state bias in altimeter estimates of sea level from collinear analysis of TOPEX data. Journal of Geophysical Research, Vol. 99, pg. 24,995–25,008
Journal Title
Journal Volume
  • 99
Journal Issue/Number
  • C12
Academic Affiliation
Dichiarazione dei diritti
Publisher
Language
Replaces
ISSN
  • 0148-0227

Le relazioni

Parents:

This work has no parents.

Elementi

Thumbnail Titolo Data caricata Visibilità Azioni
file details Chelton_JGR_1994.pdf 2017-07-24 Pubblico Scaricare