Global sensitivity analysis of water vapour and visibility for atmospheric correction

N. Bhatia, J. Biesemans, V.A. Tolpekin, I. Reusen, S. Sterckx, A. Stein

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review


This study aims to quantify sensitivity of two atmospheric condition parameters: water vapour concentration (wv) and visibility in atmospheric correction processes in an operational processing chain. wv and visibility are important atmospheric condition parameters when retrieving surface reflectance from at-sensor radiance. To save cost, these parameters are often estimated using an image-based method. Their values are therefore uncertain, which in turn propagates to the surface reflectance in the atmospheric correction process. This study proposes an e-FAST based methodology that quantifies sensitivity of the two parameters in order to calculate their relative importance. The methodology is demonstrated with HyMap data. The results show that the two parameters have high sensitivity indices (> 0.8) and are dependent on the wavelength. This indicates that both parameters are important. The uncertainty in the parameters can possibly be further reduced by improving the estimation method.
Original languageEnglish
Title of host publication2014 6th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS)
Subtitle of host publication24-27 June 2014, Lausanne, Switzerland
Place of PublicationLausanne
ISBN (Electronic)978-1-4673-9012-5
Publication statusPublished - 2014
Event6th Workshop On Hyperspectral Image And Signal Processing 2014: Evolution In Remote Sensing - Lausanne, Switzerland
Duration: 24 Jun 201427 Jun 2014
Conference number: 6


Conference6th Workshop On Hyperspectral Image And Signal Processing 2014
Abbreviated titleWHISPERS 2014
Internet address


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