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Evaluation of upper tropospheric humidity forecasts from ECMWF using AIRS and CALIPSO data
upper tropospheric humidity forecasts ECMWF AIRS CALIPSO
2009/3/13
An evaluation of the upper tropospheric humidity from the European Centre of Medium-Range Weather Forecasts (ECMWF) Integrated Forecast System (IFS) is presented. We first make an analysis of the spin...
Retrieval of upper tropospheric water vapor and upper tropospheric humidity from AMSU radiances
tropospheric water vapor tropospheric humidity AMSU radiances
2009/2/13
A regression method was developed to retrieve upper tropospheric water vapor (UTWV in kg/m2) and upper tropospheric humidity (UTH in % RH) from radiances measured by the Advanced Microwave Sounding Un...
A practical demonstration on AMSU retrieval precision for upper tropospheric humidity by a non-linear multi-channel regression method
AMSU retrieval precision upper tropospheric humidity non-linear multi-channel regression method
2009/2/6
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 netwo...
A cloud filtering method for microwave upper tropospheric humidity measurements
cloud filtering method microwave tropospheric humidity measurements
2008/12/24
The paper presents a cloud filtering method for upper tropospheric humidity (UTH) measurements at 183.31±1.00 GHz. The method uses two criteria: a viewing angle dependent threshold on the brightness t...
Diurnal variation of upper tropospheric humidity and its relations to convective activities over tropical Africa
Diurnal variation upper tropospheric humidity tropical Africa
2008/12/10
Diurnal variations of upper tropospheric humidity (UTH) as well as middle tropospheric humidity (MTH) were examined in conjunction with the diurnal cycle of convection over tropical Africa and the adj...
Analysis of Atmospheric Infrared Sounder (AIRS) measurements for five years shows significant longitudinal variations in the winter subtropical upper tropospheric relative humidity (RH), not only in t...