Comparison of Simulated Radiances, Jacobians and Information Content for the Microwave Humidity Sounder and the Advanced Microwave Sounding Unit–B
نویسنده
چکیده
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 noise characteristics.
منابع مشابه
Relative Information Content of the
There is considerable concern in the numerical weather prediction (NWP) community that the Advanced Technology Microwave Sounder (ATMS) is merely being built to the noise specifications of the Advanced Microwave Sounding Unit (AMSU) and the Microwave Humidity Sounder (MHS). Since the AMSU/MHS have greatly exceeded the noise specification, the NWP community is worried that the ATMS in fact would...
متن کاملA microwave satellite water vapour column retrieval for polar winter conditions
A new microwave satellite water vapour retrieval for the polar winter atmosphere is presented. The retrieval builds on the work of Miao et al. (2001) and Melsheimer and Heygster (2008), employing auxiliary information for atmospheric conditions and numerical optimization. It was tested using simulated and actual measurements from the Microwave Humidity Sounder (MHS) satellite instruments. Groun...
متن کاملComparison of AIRS and AMSU-B monthly mean estimates of upper tropospheric humidity
Satellite-borne measurements provide valuable information on the global distribution of upper tropospheric humidity (UTH), which represents the mean relative humidity in a layer approximately enclosed by the atmospheric pressure levels 500 and 200 hPa. Monthly mean distributions of microwave observations of UTH obtained from the Advanced Microwave Sounding Unit-B (AMSU-B) and the Humidity Sound...
متن کاملRadiative transfer calculations for a passive microwave satellite sensor: Comparing a fast model and a line-by-line model
[1] A comparison between the fast radiative transfer model Radiative Transfer for the TIROS Operational Vertical Sounder (RTTOV-7) and the physical radiative transfer model Atmospheric Radiative Transfer Simulator (ARTS) was carried out. Radiances were simulated for the sounding channels of the Advanced Microwave Sounding Unit B (AMSU-B) for the whole globe for a single time of a single day (1 ...
متن کاملA practical demonstration on AMSU retrieval precision for upper tropospheric humidity by a non-linear multi-channel regression method
A neural network algorithm inverting selected channels from the Advance Microwave Sounding Unit instruments AMSU-A and AMSU-B was applied to retrieve layer averaged relative humidity. The neural network was trained with a global synthetic dataset representing clear-sky conditions. A precision of around 6% was obtained when retrieving global simulated radiances, the precision deteriorated less t...
متن کامل