DocumentCode :
1248941
Title :
Environmental Data Records From FengYun-3B Microwave Radiation Imager
Author :
Yang, Hu ; Zou, Xiaolei ; Li, Xiaoqing ; You, Ran
Author_Institution :
Nat. Satellite Meteorol. Center, China Meteorol. Adm., Beijing, China
Volume :
50
Issue :
12
fYear :
2012
Firstpage :
4986
Lastpage :
4993
Abstract :
Microwave Radiation Imagers (MWRIs) onboard the FengYun (FY)-3A/B satellites of China Meteorological Administration were launched on May 28, 2008, and November 5, 2010, respectively. They both observe the Earth atmosphere and land surface at 10.65, 18.7, 23.8, 36.5, and 89.0 GHz with dual polarization. After extensive on-orbit calibrations, the MWRI Level-1 data were collocated in space and time with the data from Aqua Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E), F18 Special Sensor Microwave Imager Sounder (SSMIS), and Tropical Rainfall Measuring Mission Microwave Imager for cross-calibration. A forward radiative transfer model was used to simulate the clear sky brightness temperatures at the MWRI frequencies over ocean. The differences between MWRI observations and model simulations, referred to as “O-A,” and the double difference results from pairs of MWRI and AMSR-E were examined. Comparing to the biases between AMSR-E/SSMIS measurements and model simulations, the biases for MWRI are small and stable. Atmospheric and surface geophysical parameters are retrieved from MWRI observations using the heritage algorithms. It is shown that these environmental data records from MWRI are comparable with those similar data products from AMSR-E and SSMIS. Their biases from each other seemed to be minimal.
Keywords :
atmospheric techniques; atmospheric temperature; brightness; calibration; geophysical image processing; image retrieval; microwave measurement; radiometers; AMSR-E; AMSR-E/SSMIS measurements; Aqua Advanced Microwave Scanning Radiometer; China Meteorological Administration; Earth Observing System; Earth atmosphere; F18 Special Sensor Microwave Imager Sounder; FengYun-3A/B satellites; FengYun-3B microwave radiation imager; MWRI Level-1 data; MWRI observation data; Tropical Rainfall Measuring Mission Microwave Imager; atmospheric geophysical parameters; clear sky brightness temperatures; cross-calibration method; dual polarization analysis; environmental data records; forward radiative transfer model; frequency 10.65 GHz; frequency 18.7 GHz; frequency 23.8 GHz; frequency 36.5 GHz; frequency 89.0 GHz; land surface; on-orbit calibration method; surface geophysical parameters; Brightness temperature; Calibration; Microwave radiometry; Satellites; Sea surface; Calibration; FengYun (FY)-3; Microwave Radiation Imager (MWRI) retrieval; environmental data record (EDR);
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/TGRS.2012.2197003
Filename :
6246691
Link To Document :
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