A simple iterative method to improve Geosat along track sea surface height data

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Abstract
Collinear processing of Geosat altimeter data has been undertaken by several workers, many of whom have noted the problem of gaps in the data stream which can produce steps in the resultant height residuals due to repeat-specific orbit errors. The basic method of collinear analysis is explained and the problem of introduced steps discussed. A simple iterative method for significantly reducing this effect is presented, together with the resultant height residual profiles.

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