SRCA radiometric calibration tracking from pre-launch to on-orbit

被引：2
|
作者：
Montgomery, H [1 ]
Che, NZ [1 ]
Bowser, J [1 ]
机构：
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
来源：
EARTH OBSERVING SYSTEMS IV | 1999年 / 3750卷
关键词：
remote sensing; radiometric calibration;
D O I：
10.1117/12.363535
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The launch-related spectral band radiance change of the Spectro-Radiometric Calibration Assembly (SRCA) of MODurate Resolution Imaging Spectrometer (MODIS) is mainly attributable to its lamp temperature variations. Comparison of the spectral profiles, measured by the SRCA at different times, provides a way of tracking change in the band radiance while the integrated SRCA radiance remains constant. Prelaunch the SRCA was calibrated against a ground Spherical Integration Source(SIS(100). Meanwhile, the SRCA calibrations were run in spectral and radiometric modes. Comparison of the on-orbit data from the SRCA spectral and radiometric modes to prelaunch data will transfer SIS(100) ground calibration to orbit. For validation, data from TV at nominal temperature plateau will define the radiometric transfer; this transfer will be applied to SRCA data measured at other temperature plateaus and compared with the measured SIS(100) radiance values.
引用
收藏
页码：388 / 394
页数：7
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