Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection Geophysical Research Letters
收藏NOAA Institutional Repository2023-09-13 更新2026-04-25 收录
下载链接：
https://doi.org/10.1029/2018gl077891
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资源简介：
This study first quantifies the virga precipitation occurrence percentage using three spaceborneradarobservations,includingTropicalRainfallMeasuringMissionPrecipitationRadar(PR), Global Precipitation Measurement dual-frequency PR (Ku-band PR/Ka-band PR [KuPR/KaPR]), and CloudSatCloudProfilingRadar(CPR).PRandKuPR/KaPRshowthatvirgaoccurrencepercentageisover30% in arid regions (e.g., Sahara desert and deserts of Australia). CPR reveals similar virga geospatial distribution.However,thevirgapercentagebasedonCPRisabouttwiceaslargeasthatbasedonPRand KuPR/KaPRduetobetterdetectionsensitivity.Resultsalsoshowthatthemajorityofthevirgacloudsarealtostratusandcirrus.Second,weinvestigatethevirgaprecipitationcontributiontothepassivemicrowave radiometer false precipitation detection. Virga precipitation accounts for as much as 50% (30%) of
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NOAA
创建时间：
2023-09-13
