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题名: COMPARISON SIMULATED BRIGHTNESS TEMPERATURE BY RTTOV-11 WITH THE MEASUREMENTS FROM MWHS-II ONBOARD FY-3C SATELLITE
作者: Huang Yingzhu; Wang Zhenzhan
作者部门: 微波遥感部
通讯作者: Huang, YZ (reprint author), Chinese Acad Sci, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China. ; Huang, YZ (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China.
会议名称: 36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期: JUL 10-15, 2016
会议地点: Beijing, PEOPLES R CHINA
会议录: 2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
出版日期: 2016
收录类别: CPCI
页码: 392-395
ISSN号: 2153-6996
ISBN号: 978-1-5090-3332-4
关键词: Microwave Humidity Sounder(MWHS-II) ; calibration ; non-linear coefficient correction ; hot bias correction ; atmosphere radiative transfer model (RTTOV-11) ; FY-3C satellite
英文摘要: The new generation Microwave Humidity Sounder (MWHS-II) is a fifteen-channel microwave radiometer working at central frequency of 89, 118.75, 150 and 183.31GHz onboard FengYun 3C satellite (FY-3C). This paper provides an extensive evaluation of the measurements of MWHS-II with the radiances simulated by atmospheric radiative transfer model RTTOV-11 using ECMWF ERA data in 0.75 degrees grid at 37 vertical levels during 1, Feb 2014 and 31, Dec 2014. Because the brightness temperature over ocean surface is more stable than that over land surface and the emissivity of ocean surface is more accurate than land surface's, only the clear sky data over ocean surface is used for analysis. The analysis was conducted by two part. One is a global comparison of the TB products [1] of MWHS-II with the simulations by RTTOV-11, and the other is analyzing the effects of in-orbit calibration method on TB combined prelaunch thermal vacuum calibration[1]. The results shows that the monthly STD of TB products minor simulations by RTTOV-11 (TB differences) kept stable during the period calculated. And the monthly STD of TB differences are very close to the calibration sensitivity. The monthly means of TB differences is more stable in the channel of 1 similar to 5 and 10 similar to 12. However in the channel of 7 similar to 9 and 13 similar to 15, the monthly means of TB differences is more stable in cases corrected by hot bias. The antenna pattern correction contributes to decrease variety range of monthly means of TB differences in the channel of 5 similar to 6 and 11 similar to 13. A further evaluation on the measurements is progressing.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.nssc.ac.cn/handle/122/5794
Appears in Collections:微波遥感部_会议论文

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