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Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection

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  • Journal Title:
    Geophysical Research Letters
  • Personal Author:
    Wang, Yu ORCID ICON IMG ; You, Yalei ORCID ICON IMG ; Kulie, Mark ORCID ICON IMG
  • NOAA Program & Office:
    CICS (Cooperative Institute for Climate and Satellites)
  • Description:
    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
  • Keywords:
  • Source:
    Geophysical Research Letters, 45(9), 4446-4455
  • DOI:
    https://doi.org/10.1029/2018gl077891
  • ISSN:
    0094-8276
  • Format:
    PDF
  • Publisher:
    American Geophysical Union (AGU)
  • Document Type:
    Journal Article
  • Rights Information:
    Other
  • Compliance:
    Library
  • Download URL:
    https://repository.library.noaa.gov/view/noaa/54991/noaa_54991_DS1.pdf
  • File Type:
    Filetype[PDF - 2.23 MB]
  • Collection(s):
    NOAA Cooperative Institutes
  • Main Document Checksum:
    urn:sha256:93b7bb1d010ef1b659feb4d935b1eaa27dd95e5c490a4d90d4108f6b179ada28
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