Vicarious calibration of the ASTER SWIR sensor including crosstalk correction

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

Research output: Contribution to journalConference article

7 Scopus citations

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.

Original languageEnglish (US)
Article number588217
Pages (from-to)1-8
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5882
DOIs
StatePublished - Dec 29 2005
EventEarth Observing Systems X - San Diego, CA, United States
Duration: Jul 31 2005Aug 2 2005

Keywords

  • ASTER
  • Crosstalk
  • Radiometry
  • SWIR
  • Vicarious calibration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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