Calibration and Validation of the InfraRed Atmospheric Sounder Onboard the FY3B Satellite

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	Calibration and Validation of the InfraRed Atmospheric Sounder Onboard the FY3B Satellite
	Qi, CL; Chen, Y; Liu, H; Wu, CQ; Yin, DK
刊名	IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
	2012
卷号	50 期号:12
英文摘要	InfraRed Atmospheric Sounder (IRAS) instruments were successfully launched onboard the FengYun-3A (FY3A) and FengYun-3B (FY3B) satellites on May 27, 2008, and November 5, 2010, respectively. They aim at providing multichannel radiances within the spectral range of visible to infrared (IR) wavelengths for many environmental applications, including data assimilation and retrievals of global atmospheric temperature and humidity profiles. However, the velocity of the filter wheel of the first IRAS onboard FY3A is unstable and, therefore, induced a discontinuity in the measurement. The IRAS onboard FY3B works well in normal and stable operational mode since its launch without any anomaly. A variety of postlaunch calibration/validation tasks are conducted using on-orbit data during a period of three months. This paper presents on-orbit verification of IRAS instrument performance, including long-term trends of the space and warm calibration counts and noise equivalent delta radiance. The Earth scenes observed simultaneously by IRAS and Meteorological Operational Satellite Programme (METOP)/Infrared Atmospheric Sounding Interferometer were obtained and compared to demonstrate a close similarity between the two measurements. Furthermore, the IR channel observations from FY3B/IRAS are compared with those from National Oceanic and Atmospheric Administration-19/High Resolution Infrared Radiation Sounder (HIRS) equivalent channels and simulations from a radiative transfer model. The results show that some of IRAS IR channels perform very well, particularly for channels 1-10, 15, 19, and 20, compared to those of HIRS. Several channels, such as 13, 16, and 18, however, display some large biases. The causes of these increased biases are still under investigation.
WOS记录号	WOS:000311791100008
公开日期	2013-03-18
内容类型	期刊论文
源URL	[http://202.127.1.142/handle/181331/6927]
专题	上海技术物理研究所_上海技物所
推荐引用方式 GB/T 7714	Qi, CL,Chen, Y,Liu, H,et al. Calibration and Validation of the InfraRed Atmospheric Sounder Onboard the FY3B Satellite[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2012,50(12).
APA	Qi, CL,Chen, Y,Liu, H,Wu, CQ,&Yin, DK.(2012).Calibration and Validation of the InfraRed Atmospheric Sounder Onboard the FY3B Satellite.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,50(12).
MLA	Qi, CL,et al."Calibration and Validation of the InfraRed Atmospheric Sounder Onboard the FY3B Satellite".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 50.12(2012).