2013, Volume 15, Issue 10
Strategic Study of CAE >> 2013, Volume 15, Issue 10
Processing and analysis of data from microwave humidity sounder onboard FY-3A satellite
Center for Space Science and Applied Research, Key Laboratory of Microwave Remote Sensing, Chinese Academy of Sciences, Beijing 100190, China
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Abstract
Microwave humidity sounder (MWHS) is one of payloads on the Fengyun-3A (FY-3A) satellite. This paper introduces its structure, operation status and data receiving and processing. The paper constructs an inversion model using artificial neural network (ANN) algorithm, and makes comparison with advanced microwave sounding unit advanced microwave sounding unit-B(AMSU-B). The results demonstrate that the model can be operated successfully. Using the simulated brightness temperatures from MWHS from July to December in 2008 in Beijing, the paper derives water vapor density profiles and gives analysis of root mean square. Meanwhile, the paper focuses on brightness temperature values of different scanning lines when the typhoon comes. The paper demonstrates that FY-3A satellite MWHS can retrieve the water vapor density profiles, cloud liquid water and other related information. Also, in the process of monitoring the tropical typhoon and cyclone and judging the trend of them, FY-3A satellite MWHS also plays a very important role.
Keywords
MWHS ; FY-3A ; ANN ; water vapor density
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References
[ 1 ] 张升伟，李 靖，姜景山，等. 风云三号卫星微波湿度计的系统 设计与研制[J]. 遥感学报，2008，12（2）：199-207.
[ 2 ] 董瑶海，孙允珠，王金华，等. FY-3A 极轨气象卫星[J]. 上海 航天，2008（5）：1-11. link1
[ 3 ] Ulaby F，Moore R，Fung A. Microwave Remote Sensing：Active and Passive- volume III： Passive Microwave Sensing of the Atmosphere [M]. Arench House，1986：1282-1378.
[ 4 ] Leishi. Retrieval of atmospheric temperature profiles from AMSU-A measurement using a neural network approach [J]. Journal of Atmospheric and Oceanic Technology，2001，18（3）： 340-347. link1
[ 5 ] Philip W Rosenkeanz. Retrieval of temperature and moisture profiles from AMSU-A and AMSU-B measurements [J]. IEEE Transactions on Geoscience and Remote Sensing，2001，39 （11）：2429-2435. link1
[ 6 ] Liebe H J. MPM—An atmospheric millimeter-wave propagation model[J]. International Journal of Infrared and Millimeter Waves，1989，10（6）：631-650. link1
[ 7 ] Fatima Karbou，Filipe Aires，Catherine Prigent，et al. Potential of advanced microwave sounding unit-A （AMSU-A） and AMSU-B measurements for atmospherictemperature and humidity profiling over land [J]. Journal of Geophysical Research，2005， 110：1-16. link1
[ 8 ] Zhang Shengwei，Li Jing，Jiang Jingshan，et al. In-orbit performance of microwave humidity sounder（MWHS）of Chinese FY-3 meteorological satellite [J]. IGARSS，2010（1）：574-577. link1
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