基于Sentinel-2卫星数据的内陆湖泊水体大气校正

doi:10.13474/j.cnki.11-2246.2021.0265

测绘通报 ›› 2021, Vol. 0 ›› Issue (9): 9-14.doi: 10.13474/j.cnki.11-2246.2021.0265

基于Sentinel-2卫星数据的内陆湖泊水体大气校正

穆超¹, 刘振宇², 孟丹¹

1. 湖北省国土测绘院, 湖北武汉 430010;
2. 中南民族大学资源与环境学院, 湖北武汉 430074

收稿日期:2020-09-15 修回日期:2021-04-22 发布日期:2021-10-11
通讯作者: 刘振宇。E-mail:sdlylzy@whu.edu.cn
作者简介:穆超(1982-),男,博士,高级工程师,主要研究方向为自然资源遥感调查与监测。E-mail:12751087@qq.com
基金资助:
中央高校基本科研业务专项（CZQ20016）

Atmospheric correction of inland lake water based on Sentinel-2 satellite data

MU Chao¹, LIU Zhenyu², MENG Dan¹

1. Hubei Institute of Land Surveying and Mapping, Wuhan 430010, China;
2. College of Resources and Environmental Science, South-central University for Nationalities, Wuhan 430074, China

Received:2020-09-15 Revised:2021-04-22 Published:2021-10-11

摘要/Abstract

摘要： 利用Acolite、FLAASH和C2RCC 3种大气校正算法，参考内陆湖泊历史实测遥感反射率数据，开展针对Sentinel-2卫星数据的内陆湖泊水体大气校正研究。试验结果表明：在数值方面，C2RCC校正结果和实测结果位于相同数量级，Acolite和FLAASH校正结果高估；在光谱曲线变化趋势方面，C2RCC校正结果与实测数据相近，Acolite和FLAASH校正结果存在异常，因而推荐使用C2RCC大气校正Sentinel-2的内陆水体数据；如果只考虑前5个波段，Acolite校正结果的曲线趋势与实测光谱接近，由于校正结果高估，推荐使用波段比值以消除数值高估。

关键词: Sentinel-2卫星, 内陆湖泊水体, 大气校正, 遥感反射率, 东湖

Abstract: Referring to the historical measured remote sensing reflectance data, the atmospheric correction of inland lake water acquired by Sentinel-2 satellite is carried out by correction algorithms Acolite, FLAASH and C2RCC. The experimental results show that, numerically, the correction results of C2RCC are in the same order of magnitude as the measured results, and the correction results of Acolite and FLAASH are overestimated. In terms of the variation trend of spectral curve, the correction results of C2RCC are similar to the measured data, and the correction results of Acolite and FLAASH are abnormal. Therefore, it is recommended to use C2RCC atmospheric correction for Sentinel-2 inland water data. If only the first five wavebands are considered, the curve trend of the correction result of Acolite is close to the measured spectrum. As the correction result is overestimated, it is recommended to use the band ratio to eliminate the overestimation.

Key words: Sentinel-2 satellite, inland lake, atmospheric correction, remote sensing reflectance, East Lake

中图分类号:

P237

穆超, 刘振宇, 孟丹. 基于Sentinel-2卫星数据的内陆湖泊水体大气校正[J]. 测绘通报, 2021, 0(9): 9-14.

MU Chao, LIU Zhenyu, MENG Dan. Atmospheric correction of inland lake water based on Sentinel-2 satellite data[J]. Bulletin of Surveying and Mapping, 2021, 0(9): 9-14.

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基于Sentinel-2卫星数据的内陆湖泊水体大气校正

Atmospheric correction of inland lake water based on Sentinel-2 satellite data

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