Vicarious calibration of the ASTER SWIR sensor including crosstalk correction

Stuart F. Biggar; Kurtis J. Thome; Joel T. McCorkel; Jessica M. D'Amico

doi:10.1117/12.620090

22 August 2005 Vicarious calibration of the ASTER SWIR sensor including crosstalk correction

Stuart F. Biggar, Kurtis J. Thome, Joel T. McCorkel, Jessica M. D'Amico

Proceedings Volume 5882, Earth Observing Systems X; 588217 (2005) https://doi.org/10.1117/12.620090
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) sensor on the Terra spacecraft has been providing remote sensing data for the past five years. ASTER has three separate sensor sections including a sensor with six bands in the shortwave infrared section of the spectrum. The radiometric calibration of the SWIR sensor has been updated from preflight values based on the on-board calibration sources. The SWIR sensor shows evidence of crosstalk between SWIR bands which is probably optical in origin. The crosstalk was present during preflight calibration and is present in all data collected in-flight including calibration data. The effects of crosstalk can be partially removed by applying a crosstalk correction program. This correction changes the calibration of the system. In this paper we apply a vicarious calibration to crosstalk corrected ASTER imagery over high reflectance desert test sites using a reflectance based method. The updated calibration provides for better retrieval of spectral reflectance or radiance of ground targets in ASTER SWIR imagery.

Citation Download Citation

Stuart F. Biggar, Kurtis J. Thome, Joel T. McCorkel, and Jessica M. D'Amico "Vicarious calibration of the ASTER SWIR sensor including crosstalk correction", Proc. SPIE 5882, Earth Observing Systems X, 588217 (22 August 2005); https://doi.org/10.1117/12.620090

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