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

机译:利用AVNIR-2高分辨率数据在新喀里多尼亚泻湖西南部进行大气校正和固有光学性质估算

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摘要

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.
机译:研究了在新喀里多尼亚西南热带泻湖中具有30 m空间分辨率和四个波段的AVNIR-2图像的固有光学特性(IOP)和叶绿素a浓度(Chla)的取回。我们通过获取IOP来迭代地校正了大气和海面反射率。在进一步校正了海底反射率之后,即使在泻湖地区,估计的IOP和Chla也与现场测量非常吻合。这项研究提供了一种方法,该方法可以通过准备目标区域的候选光谱来使用高分辨率传感器对IOP和Chla进行局部最佳估计。

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