风云三号B星中分辨率光谱成像仪响应衰变分析

搭载于风云三号B星(FY-3B)的中分辨率光谱成像仪(MERSI)安装了由积分球和监视探测器组成的太阳反射通道星上定标器。分析了2010年11月 13日至2013年4月11日期间的星上定标数据,评估了FY-3B星上定标器和MERSI的响应衰变情况。结果表明,星上定标器的输出和MERSI的响应均存在衰变,且衰变程度与波长有关。除星上定标器除通道1(470 nm)年衰变率超过7.0%外,其余通道年衰变率小于5.0%。 MERSI 470～565 nm等短波通道衰变较大,年衰变率超过10.0%;长波通道衰变较小,年衰变率小于4.0%。

Abstract

An onboard calibrator which consists of integrating minisphere and surveillance detectors for solar reflective bands is carried on the Medium Resolution Spectral Imager (MERSI). Based on the onboard calibration data from November 13, 2010 to April 11, 2013 of satellite FY-3B, it is proved that the degradation of MERSI on FY-3B is wavelength dependent. The annual degradation rate of channels on visible onboard calibrator (VOC) is less than 5.0%/year expect for Band 1(470 nm) which has noticeably annual degradation rate over 7.0%/year. The short wavelength bands (470～565 nm) of MERSI have an annual degradation rate performance more than 10.0%/year while the longer wavelength bands with annual degradation rate less than 4.0%/year during the past two years.

参考文献

[1] 陈福春, 陈桂林, 王淦泉. 卫星遥感仪器的可见光星上定标［J］. 海洋科学进展, 2004, 22: 34-38.

Chen Fuchun, Chen Guilin, Wang Ganquan. On-orbit visble calibration for satellite remote sensing instrument ［J］. Advances in Marine Science, 2004, 22: 34-38(in Chinese).

[2] Xiong X X, Sun J Q, Barnes W, et al. Multiyear on-orbit calibration and performance of Terra MODIS reflective solar bands ［J］. IEEE Trans. Geosci. Rem. Sens., 2007, 45(4): 879-889.

[3] Xiong X X, Sun J Q, Xie X B, et al. On-orbit calibration and performance of Aqua MODIS reflective solar bands ［J］. IEEE Trans. Geosci. Rem. Sens., 2010, 48: 535-546.

[4] 顾名澧. 星载遥感器在飞行时的绝对辐射定标方法［J］. 航天返回与遥感, 2000, 21(1): 16-21.

Guo Mingli. Methods for the in-flight absolute radiation calibration of space-borne remote sensors ［J］. Spacecraft Recovery & Remote Sensing, 2000, 21(1): 16-21(in Chinese).

[5] Borgne P L, Marsouin A. Meteosat and GOES-East imager visible channel calibration ［J］. J. Atmos. Ocean. Tech., 2004, 21: 1701-1709.

[6] Crosby D, Baucom J G. Monitoring GOES imager visible -channel responsivities using empirical distribution functions of earth data ［C］. Proc. SPIE, 2005, 5882: 1-9.

[7] Bremer J C, Baucom J G. Estimation of long term throughput degradation of GOES 8 and 9 visible channels by statistical analysis of star measurement ［C］. Proc. SPIE, 1998, 3439: 14-154.

[8] Hu X Q, Sun L, Liu J J, et al. Calibration for the solar reflective bands of medium resolution spectral imager onboard FY-3A ［J］. IEEE Trans. Geosci. Rem. Sens., 2012, 50(12): 4915-4928.

[9] Biggar S F. In-Fflight Methods for Satellite Sensor Absolute Radiometric Calibration ［D］. USA: Doctorial Dissertation of University of Arizona, 1990.

[10] 李照洲. 基于辐亮度标准探测器的高精度辐射定标方法与应用研究［D］. 合肥:中国科学院合肥物质科学研究院博士论文, 2005.

Li Zhaozhou. Studies of Highly Accurate Radiometric Calibration and Application Based on Radiance Standard Detector ［D］. Hefei: Doctorial Dissertation of Hefei Institutes of Physical Science, Chinese Academy of Science, 2005(in Chinese).

[11] 郑小兵, 吴浩宇, 章骏平, 等. 不确定度优于0.035%的绝对光谱响应率标准探测器［J］. 光学学报, 2001, 21(6): 749-752.

Zheng Xiaobing, Wu Haoyu, Zhang Junping, et al. Absolute spectral responsivity standard detectors with uncertainty less than 0.035% ［J］. Acta Optica Sinica, 2001, 21(6): 749-752(in Chinese).

[12] Sun L, Hu X Q, Chen Lin. Long-term calibration monitoring of medium resolution spectral imager (MERSI) solar bands onboard FY-3 ［C］. Proc. SPIE, 2012, 8528: 852808-1-852808-9.

史剑民, 胡秀清, 徐文斌, 郑小兵. 风云三号B星中分辨率光谱成像仪响应衰变分析[J]. 大气与环境光学学报, 2014, 9(5): 376. SHI Jian-min, HU Xiu-qing, XU Wen-bin, ZHENG Xiao-bing. Analysis on Response Degradation of Medium Resolution Spectral Imager on FY-3B[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(5): 376.

风云三号B星中分辨率光谱成像仪响应衰变分析

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