The Advanced Microwave Radiometer (AMR) aboard the Surface Water and Ocean Topography (SWOT) platform provides measurements of the range delay due to water vapor and liquid water content in the atmosphere by measuring the 18.7 GHz, 23.8 GHz, and 34.0 GHz sea surface microwave brightness temperatures. The 18.7 GHz channel provides the wind-induced effects in the sea surface background emissions correction. The 23.8 GHz channel measures water vapor. The 34.0 GHz channel measures the cloud liquid water to be corrected. AMR has two simultaneously operating strings that facilitate measurements on the left and right sides of the satellite nadir point, approximately half way across each of the two Ka-band Radar Interferometer (KaRIn) swaths.
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