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SWOT Level 2 Nadir Altimeter and Advanced Microwave Radiometer Datasets Release

Posted: Wed Jun 28, 2023 1:34 pm America/New_York
by PODAAC - colleen
The PO.DAAC is pleased to announce the public release of Level 2 science data products from the Surface Water and Ocean Topography (SWOT) mission, which launched in December 2022. SWOT is a joint mission between NASA and CNES that aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. This release includes the Operational Geophysical Data Record (OGDR) and Interim Geophysical Data Record (IGDR) from the Poseidon-3C Nadir Altimeter (NALT), a Jason-class dual-frequency (Ku/C) radar altimeter that operates at 1- and 20-Hz, and the Advanced Microwave Radiometer (AMR), a two-beam passive radiometer that measures sea surface brightness temperatures for three microwave frequencies (18.7, 23.8 and 34 GHz) which are used to correct for altimeter range delays caused by water vapor and liquid water content in the....

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