Slope correction for ocean radar altimetry

TitleSlope correction for ocean radar altimetry
Publication TypeJournal Article
Year of Publication2014
AuthorsSandwell DT, Smith W.HF
JournalJournal of Geodesy
Volume88
Pagination765-771
Date Published2014/08
Type of ArticleArticle
ISBN Number0949-7714
Accession NumberWOS:000339421400004
Keywordscontinental ice; Marine gravity; Ocean circulation; Radar altimetry
Abstract

We develop a slope correction model to improve the accuracy of mean sea surface topography models as well as marine gravity models. The correction is greatest above ocean trenches and large seamounts where the slope of the geoid exceeds 100 rad. In extreme cases, the correction to the mean sea surface height is 40 mm and the correction to the along-track altimeter slope is 1-2 rad which maps into a 1-2 mGal gravity error. Both corrections are easily applied using existing grids of sea surface slope from satellite altimetry.

DOI10.1007/s00190-014-0720-1
Short TitleJ. Geodesy
Integrated Research Themes: 
Student Publication: 
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