In-situ transfer standard and coincident-view intercomparisons for sensor cross-calibration

Kurt Thome, Joel McCorkel, Jeff Czapla-Myers

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

There exist numerous methods for accomplishing on-orbit calibration. Methods include the reflectance-based approach relying on measurements of surface and atmospheric properties at the time of a sensor overpass as well as invariant scene approaches relying on knowledge of the temporal characteristics of the site. The current work examines typical cross-calibration methods and discusses the expected uncertainties of the methods. Data from the Advanced Land Imager (ALI), Advanced Spaceborne Thermal Emission and Reflection and Radiometer (ASTER), Enhanced Thematic Mapper Plus (ETM+), Moderate Resolution Imaging Spectroradiometer (MODIS), and Thematic Mapper (TM) are used to demonstrate the limits of relative sensor-to-sensor calibration as applied to current sensors while Landsat-5 TM and Landsat-7 ETM+ are used to evaluate the limits of in situ site characterizations for SI-traceable cross calibration. The current work examines the difficulties in trending of results from cross-calibration approaches taking into account sampling issues, site-to-site variability, and accuracy of the method. Special attention is given to the differences caused in the cross-comparison of sensors in radiance space as opposed to reflectance space. The results show that cross calibrations with absolute uncertainties < 1.5% (1σ) are currently achievable even for sensors without coincident views.

Original languageEnglish (US)
Article number6464573
Pages (from-to)1088-1097
Number of pages10
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume51
Issue number3
DOIs
StatePublished - Feb 26 2013

Keywords

  • Advanced Land Imager (ALI)
  • Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)
  • Enhanced Thematic Mapper Plus (ETM+)
  • Moderate Resolution Imaging Spectroradiometer (MODIS)
  • SI-traceability
  • Thematic Mapper (TM)
  • cross-calibration
  • vicarious calibration

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Earth and Planetary Sciences(all)

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