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Updated: May 15, 2026

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
Published on: April 18, 2025
Atmospheric correction and inherent optical property estimation in the southwest New Caledonia lagoon using AVNIR-2
Hiroshi Murakami1, Cécile Dupouy
1Japan Aerospace Exploration Agency, Earth Observation Research Center, 2-1-1, Sengen, Tsukuba, Ibaraki 305-8505, Japan. murakami.hiroshi.eo@jaxa.jp
Abstract:
Retrievals of inherent optical properties (IOPs) and chlorophyll-a concentration (Chla) were 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 seafloor reflectance, the estimated IOPs and Chla agreed well with the in situ measurements even in the lagoon areas. This study provides a method to allow a local optimal estimation of IOPs and Chla with a high-resolution sensor by preparing the candidate spectra for the target areas.
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