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大气校正模型对多光谱水深反演影响的多维度分析

张焕炜 马毅 张靖宇

张焕炜,马毅,张靖宇. 大气校正模型对多光谱水深反演影响的多维度分析[J]. 海洋学报,2022,44(7):145–160 doi: 10.12284/hyxb2022122
引用本文: 张焕炜,马毅,张靖宇. 大气校正模型对多光谱水深反演影响的多维度分析[J]. 海洋学报,2022,44(7):145–160 doi: 10.12284/hyxb2022122
Zhang Huanwei,Ma Yi,Zhang Jingyu. Multi-dimensional analysis of atmospheric correction models on multi-spectral water depth inversion[J]. Haiyang Xuebao,2022, 44(7):145–160 doi: 10.12284/hyxb2022122
Citation: Zhang Huanwei,Ma Yi,Zhang Jingyu. Multi-dimensional analysis of atmospheric correction models on multi-spectral water depth inversion[J]. Haiyang Xuebao,2022, 44(7):145–160 doi: 10.12284/hyxb2022122

大气校正模型对多光谱水深反演影响的多维度分析

doi: 10.12284/hyxb2022122
基金项目: 国家自然科学基金重点项目(51839002);国家自然科学基金青年项目(41906158);海洋资源环境遥感信息处理业务应用示范系统高分专项(41-Y30F07-9001-20/22)。
详细信息
    作者简介:

    张焕炜(1998-),女,河南省安阳市人,主要从事海洋遥感与应用研究。E-mail: huanwei98@163.com

    通讯作者:

    马毅,研究员,主要从事海岛海岸带遥感与应用研究。E-mail: mayimail@fio.org.cn

  • 中图分类号: TP79;TP751

Multi-dimensional analysis of atmospheric correction models on multi-spectral water depth inversion

  • 摘要: 大气校正是水体定量遥感的基础与前提。本文从大气校正模型、大气校正模型参数、水体组分差异以及水深反演波段组合方式4个维度探讨大气校正模型对水深反演的影响。研究采用6S、FLAASH、ACOLITE与QUAC 4种大气校正模型,选取大陆型、海洋型与城市型气溶胶模式,以瓦胡岛西北侧与谢米亚岛周边浅水作为清洁水体研究区,以辽东浅滩与槟城海峡作为浑浊水体研究区,基于Landsat-8多光谱影像开展大气校正,并采用8种波段组合方式进行水深遥感反演。研究结果表明:(1)4种大气校正模型均可在一定程度上削弱大气对水体信号的影响;因参数选取以及研究区水体组分的不同,不同模型的校正结果存在一定差异;两类水体反射率峰值分别出现在蓝波段与绿波段;(2)6S大气校正模型鲁棒性较强,该模型因研究区水体组分发生变化导致对应的水深反演结果与其余模型相比波动较小;FLAASH模型在海洋型和城市型两种气溶胶模式水深反演结果在浑浊水体存在较为明显的差异,辽东浅滩浅水区平均相对误差相差7.9%;ACOLITE模型受水体类型影响显著且对浑浊水体具有优越性与稳定性,平均相对误差较FLAASH降低5.6%;(3)多波段水深反演精度普遍优于单波段,但反演精度与波段数目之间无显著的相关性;水深反演波段组合方式对不同研究区敏感性不同,清洁水体三波段模型的反演精度较好,浑浊水体中四波段模型的反演精度最优,平均相对误差较三波段模型降低达5.6%。
  • 图  1  清洁水体遥感影像与水深点分布

    Fig.  1  Remote sensing image of clean water and distribution of water depth points

    图  2  浑浊水体遥感影像与水深点分布

    Fig.  2  Remote sensing image of turbid water and distribution of water depth points

    图  3  清洁水体4个波段校正结果

    Fig.  3  Clean water four bands atmospheric correction results

    图  4  浑浊水体4个波段校正结果

    Fig.  4  Turbid water four bands atmospheric correction results

    图  5  瓦胡岛检验区蓝波段反射率分布

    Fig.  5  Blue-band reflectance distribution in the Oahu Island test area

    图  6  辽东浅滩检验区绿波段反射率分布

    Fig.  6  Green-band reflectance distribution in the Liaodong Shoal test area

    图  7  瓦胡岛不同波段组合模型水深反演结果精度分析

    Fig.  7  Accuracy analysis of bathymetric inversion results of different band combination models of Oahu Island

    图  8  辽东浅滩不同波段组合模型水深反演结果精度分析

    Fig.  8  Accuracy analysis of bathymetric inversion results of different band combination models of Liaodonng Shoal

    图  9  瓦胡岛研究区不同大气校正模型反演水深值与参考水深值散点图

    Fig.  9  Scatter plots of bathymetry and reference bathymetry for different atmospheric correction models for Oahu Island

    图  10  辽东浅滩研究区不同大气校正模型反演水深值与参考水深值散点图

    Fig.  10  Scatter plots of bathymetry and reference bathymetry for different atmospheric correction models for Liaodong Shoal

    表  1  清洁水体水深点数量分布

    Tab.  1  Number distribution of water depth points in clean water

    水深点研究区整体0~5 m5~10 m10~15 m15~20 m
    控制点瓦胡岛18348514737
    谢米亚岛20244545153
    检查点瓦胡岛8922292414
    谢米亚岛9318232923
    下载: 导出CSV

    表  2  浑浊水体水深点数量分布

    Tab.  2  Number distribution of water depth points in turbid water

    水深点研究区整体0~5 m5~10 m10~15 m15~20 m
    控制点辽东浅滩21750745637
    槟城17850565220
    检查点辽东浅滩9518312719
    槟城8819272418
    下载: 导出CSV

    表  3  气溶胶模式4种基本粒子体积比

    Tab.  3  Volume ratio of four basic particles in aerosol model

    类型水溶性粒子类尘埃海洋性粒子烟尘性粒子
    大陆型0.290.700.01
    海洋型0.050.95
    城市型0.610.170.22
      注:− 代表没有该类型的物质。
    下载: 导出CSV

    表  4  大气校正参数

    Tab.  4  Atmospheric correction parameters

    研究区大气模式波长550 nm光学厚度平均高程/km
    瓦胡岛热带0.0780.07
    谢米亚岛中纬度夏季0.1850.00
    辽东浅滩中纬度夏季0.0780.01
    槟城热带0.2380.05
    下载: 导出CSV

    表  5  清洁水体校正结果标准差(SD)与变异系数(CV)

    Tab.  5  Standard deviation (SD) and coefficient of variation (CV) of atmospheric correction results for clean water

    中心波长/nm瓦胡岛研究区 谢米亚岛研究区
    SDCV/10−3SDCV/10−3
    482.555.81116.7 56.53328.0
    562.537.80148.634.31350.3
    65528.41182.717.86358.5
    86522.73149.728.80585.1
    下载: 导出CSV

    表  6  浑浊水体校正结果标准差(SD)与变异系数(CV)

    Tab.  6  Standard deviation (SD) and coefficient of variation (CV) of atmospheric correction results for turbid water

    中心波长/nm辽东浅滩研究区 槟城研究区
    SDCV/10−3SDCV/10−3
    482.574.96116.7 147.35159.7
    562.599.19114.7122.16126.0
    65560.5678.964.91114.3
    86518.72128.359.80242.0
    下载: 导出CSV

    表  7  不同波段组合模型

    Tab.  7  Different band combination model

    波段数目组合方式
    单波段BGR
    双波段B+GB+RG+R
    三波段B+G+R
    四波段B+G+R+NIR
    下载: 导出CSV

    表  8  清洁水体不同波段组合模型水深反演结果精度

    Tab.  8  The accuracy of water depth inversion results of different band combination models for clean water

    研究区模型MAE平均值/m MRE平均值/%
    GB+GB+G+RB+G+R+NIRGB+GB+G+RB+G+R+NIR
    瓦胡岛6S大陆型2.501.711.431.47 48.326.922.423.5
    6S城市型2.521.731.441.4749.027.522.523.6
    6S海洋型2.461.651.431.4947.225.722.123.3
    FLAASH城市型2.681.721.411.4451.326.722.623.5
    FLAASH海洋型2.671.711.431.4549.725.122.222.5
    ACOLITE2.282.081.911.9141.733.832.333.2
    QUAC2.491.661.421.4748.125.521.923.5
    谢米亚岛6S大陆型2.432.432.472.4350.832.428.628.9
    6S城市型3.592.722.492.4750.433.428.729.4
    6S海洋型3.592.722.512.4050.633.029.328.7
    FLAASH城市型3.922.922.562.5458.434.829.330.4
    FLAASH海洋型4.103.142.422.4262.838.827.728.1
    ACOLITE3.672.632.322.3452.730.825.726.9
    QUAC3.792.702.342.3655.932.927.930.4
      注:本表中展示了精度较好的几种波段组合方式。
    下载: 导出CSV

    表  9  清洁水体不同波段组合模型水深反演结果均值与标准差

    Tab.  9  Mean and standard deviation of bathymetric inversion results of different band combination models for clean water

    研究区指标BGRB+GB+RG+RB+G+RB+G+R+NIR
    瓦胡岛MAE平均值/m3.742.513.671.753.752.341.501.53
    标准差/m0.110.140.120.150.110.070.180.17
    MRE平均值/%68.247.960.427.359.344.423.724.7
    标准差/%3.83.03.23.03.80.83.83.8
    谢米
    亚岛
    MAE平均值/m4.143.593.912.754.083.602.442.42
    标准差/m0.690.500.620.210.670.490.080.06
    MRE平均值/%70.554.559.733.764.354.828.229.0
    标准差/%2.14.42.92.34.53.41.21.2
    下载: 导出CSV

    表  10  浑浊水体不同波段组合模型水深反演结果精度

    Tab.  10  The accuracy of water depth inversion results of different band combination models for turbid water

    研究区模型MAE/m MRE/%
    BB+GB+G+RB+G+R+NIRBB+GB+G+RB+G+R+NIR
    辽东浅滩6S大陆型3.833.423.272.8150.943.441.435.2
    6S城市型3.833.443.302.8250.943.741.835.2
    6S海洋型3.833.423.272.8150.943.741.535.1
    FLAASH城市型3.813.473.413.0449.142.141.837.6
    FLAASH海洋型3.813.453.383.2049.241.741.539.7
    ACOLITE3.823.403.262.7750.943.240.934.1
    QUAC3.813.483.402.9449.343.142.835.9
    槟城6S大陆型3.233.073.062.9441.238.237.836.1
    6S城市型3.223.073.052.9441.238.237.736.0
    6S海洋型3.233.063.052.9441.238.137.635.9
    FLAASH城市型3.213.123.123.0441.339.339.537.4
    FLAASH海洋型3.223.113.113.0341.339.139.237.2
    ACOLITE3.233.063.042.9441.238.237.736.0
    QUAC3.253.093.102.9242.039.239.436.2
      注:本表只展示了精度较好的几种波段组合方式。
    下载: 导出CSV

    表  11  浑浊水体不同波段组合模型水深反演结果均值与标准差

    Tab.  11  Mean and standard deviation of bathymetric inversion results of different band combination models for turbid water

    研究区指标BGRB+GB+RG+RB+G+RB+G+R+NIR
    辽东浅滩MAE平均值/m3.823.973.913.443.793.893.332.91
    标准差/m0.010.010.010.030.010.000.070.16
    MRE平均值/%50.253.352.243.049.651.841.736.1
    标准差/%0.90.70.70.80.80.40.61.9
    槟城MAE平均值/m3.273.233.583.243.233.083.082.96
    标准差/m0.010.010.030.010.000.020.030.04
    MRE平均值/%43.841.350.742.143.338.638.436.4
    标准差/%0.20.30.40.30.30.50.80.6
    下载: 导出CSV

    表  12  清洁水体分段水深精度评价

    Tab.  12  Accuracy evaluation of segmented depth of clean water

    研究区水深段/m指标6S大陆型6S城市型6S海洋型FLAASH城市型FLAASH海洋型ACOLITEQUAC
    瓦胡岛0~5MAE/m1.161.171.151.181.201.931.20
    MRE/%44.644.744.045.245.074.344.7
    5~10MAE/m1.131.151.131.151.111.651.20
    MRE/%16.216.416.116.816.223.317.0
    10~15MAE/m1.511.521.531.421.411.821.67
    MRE/%13.013.013.112.112.015.414.2
    15~20MAE/m1.831.841.811.711.852.531.77
    MRE/%9.89.99.79.110.013.99.5
    谢米
    亚岛
    0~5MAE/m2.142.212.192.281.911.741.72
    MRE/%62.263.165.164.762.149.959.8
    5~10MAE/m1.711.691.691.641.391.671.61
    MRE/%24.023.923.922.719.023.322.9
    10~15MAE/m1.911.861.942.001.931.911.90
    MRE/%14.714.214.915.314.814.814.8
    15~20MAE/m4.194.294.284.434.463.944.10
    MRE/%24.324.924.925.725.822.924.4
    下载: 导出CSV

    表  13  浑浊水体分段水深精度

    Tab.  13  Accuracy of segmented depth of turbid water

    研究区水深段/m指标6S大陆型6S城市型6S海洋型FLAASH城市型FLAASH海洋型ACOLITEQUAC
    辽东
    浅滩
    0~5MAE/m3.093.073.163.233.432.983.37
    MRE/%86.485.888.591.199.082.589.1
    5~10MAE/m2.042.032.132.072.101.931.88
    MRE/%27.327.328.627.628.625.725.2
    10~15MAE/m1.801.781.691.942.041.872.02
    MRE/%13.513.412.714.615.414.115.3
    15~20MAE/m5.295.325.205.355.725.225.56
    MRE/%30.630.730.030.832.730.132.0
    槟城0~5MAE/m1.761.751.761.721.731.751.80
    MRE/%65.164.364.666.366.364.565.7
    5~10MAE/m2.042.052.052.202.152.052.12
    MRE/%30.730.930.832.932.130.932.1
    10~15MAE/m2.262.252.252.392.402.252.13
    MRE/%18.418.318.419.619.718.317.3
    15~20MAE/m6.476.456.456.546.566.446.37
    MRE/%37.237.137.137.637.737.036.6
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-08-14
  • 修回日期:  2022-01-13
  • 网络出版日期:  2022-07-01
  • 刊出日期:  2022-07-01

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