Assessments of Doppler Velocity Errors of EarthCARE Cloud Profiling Radar Using Global Cloud System Resolving Simulations: Effects of Doppler Broadening and Folding
نویسندگان
چکیده
The Earth Clouds, Aerosol, and Radiation Explorer (EarthCARE) is a satellite mission jointly developed by the Japan Aerospace Exploration Agency (JAXA) European Space (ESA). One challenging feature of this observation Doppler velocity Cloud Profiling Radar (EC-CPR). measurement accuracy affected random errors induced broadening due to finite beamwidth folding caused pulse repetition frequency. We investigated impact horizontal (along-track) integration unfolding methods on reduction errors, in order improve data processing JAXA standard algorithm. simulated EC-CPR-observed velocities from pulse-pair covariances with latest EC-CPR specifications using radar reflectivity factor fields simulator global cloud system resolving simulation. Two representative cases cirrus precipitation were examined. In case, deviation error was decreased 0.5 m/s for −10 dB ${Z} _{\mathbf {e}}$ after 10-km integration. large falling speeds larger than that case. When −15 , deviations less 1.0 unfolding.
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ژورنال
عنوان ژورنال: IEEE Transactions on Geoscience and Remote Sensing
سال: 2022
ISSN: ['0196-2892', '1558-0644']
DOI: https://doi.org/10.1109/tgrs.2021.3060828