Atmospheric correction and inherent optical property estimation in the southwest New Caledonia lagoon using AVNIR-2 high-resolution data

Hiroshi Murakami (1) , Cecile Dupouy (2)

1 EORC - Earth Observation Research Center [Saitama]
2 MIO - Institut méditerranéen d'océanologie

Retrievals of inherent optical properties (IOPs) and Chlorophyll-a concentration (Chla) was investigated for AVNIR-2 images with 30-m spatial resolution and four bands in the southwest tropical lagoon of New Caledonia. We corrected the atmospheric and sea-surface reflectance iteratively through the retrieval of IOPs. After an additional correction of sea floor reflectance, the estimated IOPs and Chla agreed well with the in situ measurements even in the lagoon areas. This study provides a method to allowing a local optimal estimation of IOPs and Chla with a high resolution sensor by preparation of the candidate spectra for the target areas.

Mots clés: LAGON; CHLOROPHYLLE; COULEUR DE L'EAU; PROPRIETES OPTIQUES; ALGORITHME; ANALYSE SPECTRALE; IMAGE SATELLITE; CORRECTION ATMOSPHERIQUE; NOUVELLE CALEDONIE

Domaines: Ingénierie de l'environnement

Hiroshi Murakami, Cecile Dupouy. Atmospheric correction and inherent optical property estimation in the southwest New Caledonia lagoon using AVNIR-2 high-resolution data. Applied optics, 2013, 52 (2), pp.182-198. ⟨ird-00862977⟩