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Sensitivity analysis for the aerosol retrieval over land for MERIS

Authors :
Jean-Claude Roger
Richard Santer
Catherine Schmechtig
Philippe Dubuisson
Veronique Carrere
Ecosystèmes littoraux et côtiers (ELICO)
Université de Lille, Sciences et Technologies-Université du Littoral Côte d'Opale (ULCO)-Centre National de la Recherche Scientifique (CNRS)
Ecosystèmes littoraux et côtiers - UMR 8013 (ELICO)
Source :
International Journal of Remote Sensing, International Journal of Remote Sensing, Taylor & Francis, 2010, 24 (14), pp.2921-2944. ⟨10.1080/01431160210163137⟩, International Journal of Remote Sensing, 2010, 24 (14), pp.2921-2944. ⟨10.1080/01431160210163137⟩
Publication Year :
2003
Publisher :
Informa UK Limited, 2003.

Abstract

The inversion of aerosol characteristics over DDV (Dark Dense Vegetation) targets is an intermediate and important step whenever atmospheric correction over land for the Envisat/MERIS instrument is performed. We present here the results of an error budget for every step of this inversion. We show that the crucial step is DDV selection based on a threshold on the ARVI (Atmospherically Resistant Vegetation Index). The cornerstone of this inversion is aerosol climatology, as aerosol scattering properties depend on the aerosol refractive index. Finally, we conclude that the major source of uncertainty is the imaginary part of the aerosol refractive index. This is critical as the atmospheric correction over land algorithm handles it with difficulty.

Details

ISSN :
13665901 and 01431161
Volume :
24
Database :
OpenAIRE
Journal :
International Journal of Remote Sensing
Accession number :
edsair.doi.dedup.....53eb71fef75a76aaea3e284274d8bfe3
Full Text :
https://doi.org/10.1080/01431160210163137