Retrieving Layer-Averaged Tropospheric Humidity From Advanced Technology Microwave Sounder Water Vapor Channels
نویسندگان
چکیده
منابع مشابه
Comparison of upper tropospheric water vapor observations from theMicrowave Limb Sounder and Atmospheric Infrared Sounder
[1] We compare matched retrievals of upper tropospheric water vapor (UTWV) mixing ratios from the Microwave Limb Sounder (MLS) instrument on the Aura satellite, and the Atmospheric Infrared Sounder (AIRS) instrument on the Aqua satellite. Because each instrument’s sampling is affected by tropical conditions, about half of mutually observed scenes in the tropics yield simultaneous successful ret...
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[1] Microwave humidity measurements from polar orbiting satellites are affected by diurnal sampling biases which are caused by changes in the local observation time of the satellites. The long-term data records available from these satellites thus have spurious trends, which must be corrected. Diurnal cycles of the microwave measurements have been constructed by combining data over the period 2...
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The Microwave Humidity Sounder (MHS) has similar scan characteristics to the Advanced Microwave Sounding Unit-B (AMSU-B). However, the radiometric characteristics are somewhat different, particularly for two channels. Both of these channels will sense somewhat deeper into the atmosphere for the MHS than the AMSU-B. The MHS also has higher information content than the AMSU-B due to its improved ...
متن کاملIntercomparison of tropical tropospheric humidity in GCMs with AMSU-B water vapor data
[1] We make use of microwave measurements of the tropical free tropospheric relative humidity (FTH) to evaluate the extent to which the water vapor distribution in four general circulation models is faithful to reality. The comparison is performed in the tropics by sorting the FTH in dynamical regimes defined upon the 500 hPa vertical velocity. Because microwave radiation penetrates non-rainy a...
متن کاملTropospheric Water Vapor, Convection and Climate
Recent progress is reviewed in the understanding of convective interaction with water vapor, and changes associated with water vapor in warmer climates. Progress includes new observing techniques (including isotopic methods) that are helping to illuminate moistureconvection interaction, better-observed humidity trends, new modeling approaches, and clearer expectations as to the hydrological con...
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ژورنال
عنوان ژورنال: IEEE Transactions on Geoscience and Remote Sensing
سال: 2015
ISSN: 0196-2892,1558-0644
DOI: 10.1109/tgrs.2015.2445832