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Rain-flagging of the Envisat altimeter

Quartly, Graham D.; Srokosz, Meric A. ORCID: https://orcid.org/0000-0002-7347-7411. 2003 Rain-flagging of the Envisat altimeter. In: IEEE Geoscience and Remote Sensing Symposium, Toulouse, France, 21-25 Jul 2003.

Abstract

As the goals for altimetric measurements become ever
more precise, there is concern about the reliable detection and
discarding of rain contaminated data. A dual-frequency rain
detection technique developed for the Ku- and C-band TOPEX
altimeter, is adapted for the Ku- and S-band RA-2 altimeter on
Envisat. Of particular concern is the selection of a suitable
threshold to minimise the quantity of good data inadvertently
discarded.

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