Remote Sensing Technology and Application, Volume. 40, Issue 2, 265(2025)
Atmospheric Correction Method of Sentinel-2 Data for Inland Water Quality Remote Sensing
Figures & Tables(8)
Fig. 1. Pre-atmospheric correction image and post-atmospheric correction image of three methods
Fig. 2. Comparison of typical features spectra before and after atmospheric correction
Fig. 3. Comparison of image spectra after atmospheric correction with measured spectra in typical features
Fig. 4. Water information extraction by three atmospheric correction methods
Table 1.
Spectral bands of the Sentinel-2 sensors View tableView in ArticleTable 1.
Spectral bands of the Sentinel-2 sensors 波段 中心波长/nm 波段宽度/nm 空间分辨率/m 1 443 20 60 2 490 65 10 3 560 35 10 4 665 30 10 5 705 15 20 6 740 15 20 7 783 20 20 8 842 115 10 8A 865 20 20 9 945 20 60 10 1 375 30 60 11 1 610 90 20 12 2 190 180 20
Table 2.
Sample information of typical features View tableView in ArticleTable 2.
Sample information of typical features 地物类型 测量日期 点位 浑浊度/(mg/L) 清洁水体 2023.2.27 113.97° E, 23.77° N 2 浑浊水体 2023.3.7 113.42° E, 24.16° N 14 水泥地 2023.5.31 113.33° E, 23.79° N -
Table 3.
Correlation statistics between typical features image spectra after atmospheric correction and measured spectra View tableView in ArticleTable 3.
Correlation statistics between typical features image spectra after atmospheric correction and measured spectra 典型地物类型 R2 RMSE WQAC FLAASH Sen2Cor WQAC FLAASH Sen2Cor 清洁水体 0.918 0.658 0.971 0.006 0.135 0.111 浑浊水体 0.856 0.184 0.719 0.017 0.110 0.091 水泥地 0.958 0.822 0.951 0.230 0.115 0.141
Table 4.
Statistics of water information extraction after atmospheric correction View tableView in ArticleTable 4.
Statistics of water information extraction after atmospheric correction 目视解译 WQAC FLAASH Sen2Cor 实验区1 面积/km2 5.694 5.511 4.553 5.418 百分比/% 100 96.78 79.95 95.14 Kappa系数 - 0.958 0.764 0.937 实验区2 面积/km2 2.096 1.880 1.412 1.643 百分比/% 100 89.68 67.33 78.38 Kappa系数 - 0.871 0.641 0.747
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Jiayi LI, Ruru DENG, Yan YAN, Yu GUO, Yuhua LI, Yiling LI, Longhai XIONG, Yeheng LIANG. Atmospheric Correction Method of Sentinel-2 Data for Inland Water Quality Remote Sensing[J]. Remote Sensing Technology and Application, 2025, 40(2): 265
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Received: Aug. 29, 2023
Accepted: --
Published Online: May. 23, 2025
The Author Email: Ruru DENG (esdrr@mail.sysu.edu.cn)
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