Articles | Volume 18, issue 16
Atmos. Chem. Phys., 18, 11697–11708, 2018
https://doi.org/10.5194/acp-18-11697-2018
Atmos. Chem. Phys., 18, 11697–11708, 2018
https://doi.org/10.5194/acp-18-11697-2018

Research article 17 Aug 2018

Research article | 17 Aug 2018

Assessment of global navigation satellite system (GNSS) radio occultation refractivity under heavy precipitation

Ramon Padullés et al.

Data sets

TRMM Combined Precipitation Radar and Microwave Imager Rainfall Profile L2 1.5 hours V7 Tropical Rainfall Measuring Mission (TRMM) https://disc.gsfc.nasa.gov/datacollection/TRMM_2B31_7.html

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Short summary
In this paper we have assessed the positive difference observed between radio-occultation-retrieved refractivity and that of weather analyses and reanalyses when heavy precipitation is present. The impact of the precipitation media on the refractivity observable has been evaluated, showing that precipitation itself cannot explain the magnitude of the observed difference. Instead, the difference is shown to be linked to high specific-humidity conditions, which in turn are linked to rain.
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