Revised Landsat-5 TM radiometric calibration procedures and postcalibration dynamic ranges
Revised Landsat-5 TM radiometric calibration procedures and postcalibration dynamic ranges
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DOI：
10.1109/tgrs.2003.818464
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发表时间：
2003-11-01
影响因子：
8.2
通讯作者：
Markham, B
中科院分区：
文献类型：
--
作者：
Chander, G;Markham, B
自2003年5月5日起，由美国地质调查局（USGS）地球资源观测系统（EROS）数据中心（EDC）处理和分发的Landsat-5 （L5）专题绘图仪（TM）数据将使用新的程序和修订的校准参数进行辐射校准。这一变化将提高绝对校准精度，随时间的一致性，以及与Landsat-7 (L7) Enhanced Thematic Mapper Plus （ETM+）数据的一致性。用户将需要使用新的参数将校准后的数据产品转换为亮度。反射带（1-5,7）的新程序基于仪器的寿命辐射校准曲线，该曲线来自仪器的内部校准器，与ETM+交叉校准，以及替代测量。热带将继续使用内部校准器进行校准。正在研究进一步更新以改进探测器对探测器的相对校准和热波段校准，以及Landsat-4 (L4) TM的校准。
Effective May 5, 2003, Landsat-5 (L5) Thematic Mapper (TM) data processed and distributed by the U.S. Geological Survey (USGS) Earth Resources Observation System (EROS) Data Center (EDC) will be radiometrically calibrated using a new procedure and revised calibration parameters. This change will improve absolute calibration accuracy, consistency over time, and consistency with Landsat-7 (L7) Enhanced Thematic Mapper Plus (ETM+) data. Users will need to use new parameters to convert the calibrated data products to radiance. The new procedure for the reflective bands (1-5,7) is based on a lifetime radiometric calibration curve for the instrument derived from the instrument's internal calibrator, cross-calibration with the ETM+, and vicarious measurements. The thermal band will continue to be calibrated using the internal calibrator. Further updates to improve the relative detector-to-detector calibration and thermal band calibration are being investigated, as is the calibration of the Landsat-4 (L4) TM.