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Monitoring and Cross-Calibration of Altimeter σ0 through Dual-Frequency Backscatter Measurements
Publisher: American Meteorological Society
Abstract: The normalized backscatter, σ0, observed by an altimeter at its Ku band is used to infer wind speed above the ocean surface, and for the dual-frequency TOPEX altimeter, algorithms exist to calculate wind stress and rainfall ...
The Gate Dependence of Geophysical Retrievals from the TOPEX Altimeter
Publisher: American Meteorological Society
Abstract: Altimeter waveform data over the oceans are routinely processed to give sea surface height, h, significant wave height, Hs, and normalized signal strength, σ0 (from which wind speed is inferred). The onboard processing of ...
Determination of Oceanic Rain Rate and Rain Cell Structure from Altimeter Waveform Data. Part I: Theory
Publisher: American Meteorological Society
Abstract: The predominant effect of rain on altimeter data is through the attenuation it causes of radar pulses propagating through it. Both the ERS-1 and TOPEX/Poseidon have recorded sharp decreases in the observed backscatter σ0, ...
SST Observations of the Agulhas and East Madagascar Retroflections by the TRMM Microwave Imager
Publisher: American Meteorological Society
Abstract: The retroflections of the East Madagascar Current and Agulhas Current are complex rapidly evolving systems, the latter controlling the passage of warm salty water from the Indian Ocean to the Atlantic. The TRMM Microwave ...
Eddy Detection Inverted from Argo Profiles to Surface Altimetry
Publisher: American Meteorological Society
The Effects of Rain on ERS-1 Radar Altimeter Data
Publisher: American Meteorological Society
Abstract: An investigation into a potentially important, but little-studied effect on altimeter data?rain contamination?has been carried out using ERS-1. The method involves identifying large changes in the radar backscatter coefficient ...