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Slope correction for ocean 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 $$\mu $$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 $$\mu $$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.
Slope correction for ocean 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 $$\mu $$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 $$\mu $$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.
Slope correction for ocean radar altimetry
Sandwell, David T. (author) / Smith, Walter H. F. (author)
Journal of Geodesy ; 88
2014
Article (Journal)
English
BKL:
38.73
Geodäsie
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