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Atmospheric correction to IRS-P6 AWiFS data and its validation with ground measurements: a study over the semi-arid region / Ashu Sharma in Geocarto international, vol 25 n° 7 (November 2010)  

Public [article]  inGeocarto international > vol 25 n° 7 (November 2010) . - pp 581 - 594 Titre : Atmospheric correction to IRS-P6 AWiFS data and its validation with ground measurements: a study over the semi-arid region Type de document : Article/Communication Auteurs : Ashu Sharma, Auteur ; S. Karol, Auteur ; K. Badarinath, Auteur Année de publication : 2010 Article en page(s) : pp 581 - 594 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] aérosol [Termes IGN] correction atmosphérique [Termes IGN] données de terrain [Termes IGN] image IRS-AWIFS [Termes IGN] image Terra-MODIS [Termes IGN] zone semi-aride Résumé : (Auteur) In this study, we have implemented a fast atmospheric correction algorithm to IRS-P6 advanced wide field sensor (AWiFS) satellite data for retrieving surface reflectance under different atmospheric and surface conditions. The algorithm is based on MODIS climatology products and simplified use of Second Simulation of Satellite Signal in Solar Spectrum (6S) radiative transfer code. The algorithm requires information on aerosol optical depth (AOD) for correcting the satellite dataset. The atmospheric correction algorithm has been tested for IRS-P6 AWiFS False colour composites covering the International Crops Research Institute for the Semi-Arid Tropics Farm, Patancheru, Hyderabad, India, under varying atmospheric conditions. Ground measurements of surface reflectance representing different land use/land cover, i.e. red soil, chick pea, groundnut and pigeon pea crops were conducted to validate the algorithm. Terra MODIS AOD550 validated with Microtops-II sun photometer-derived AOD500 over the urban region of Hyderabad exhibited very good correlation of ?0.92, suggesting possible use of satellite-derived AOD for atmospheric correction. Numéro de notice : A2010-472 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2010.516842 Date de publication en ligne : 25/08/2010 En ligne : https://doi.org/10.1080/10106049.2010.516842 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30665 [article]

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