水体石油类信息遥感提取模式研究

黄妙芬; 宋庆君; 简伟军; 张民伟

水体石油类信息遥感提取模式研究

1.
大连海洋大学海洋科技与环境学院, 辽宁大连 116023
2.
大连海洋大学海洋科技与环境学院, 辽宁大连 116023;国家海洋局国家卫星海洋应用中心, 北京 100081
3.
深圳大学生物科学学院, 广东深圳 518060
4.
中国科学院对地观测与数字地球科学中心, 北京 100094

基金项目: 国家海洋公益性行业科研专项项目"海洋生态环境监测仪器产业化及示范应用研究"(201005025-04);辽宁省高等学校优秀人才支持计划资助项目:"水体有机污染遥感反演模式研究"(LR2011019);国家自然科学基金项目"水体石油类污染遥感探测机理和识别模型研究"(40771196)。

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出版历程
- 收稿日期: 2011-08-28
- 修回日期: 2012-02-12

The retrieval model for petroleum concentration in waters using remote sensing data

1.
College of Marine Science and Technology and Environment, Dalian Ocean University, Dalian 116023, China
2.
College of Marine Science and Technology and Environment, Dalian Ocean University, Dalian 116023, China;National Satellite Ocean Application Service, State Oceanio Administration, Beijing 100081, China
3.
School of Biology Science, Shenzhen University, Shenzhen 518060, China
4.
Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China

摘要

摘要: 石油类是水体有机污染物中的一种,其对水体吸收系数的影响主要体现在有色可溶性有机物(chromophoric dissolved organic matter,CDOM)的光吸收特性上。在水色遥感领域,CDOM光吸收特性主要用其在参考波段的吸收系数和光谱斜率来表征。利用2008年5月、2009年8月和2010年6月在辽宁省盘锦市辽河油田境内获取的CDOM吸收系数、水体表观光学特性以及石油类污染浓度等试验数据,确定表征石油类污染水体CDOM吸收光谱特性的光谱斜率;根据光谱斜率以及表征CDOM浓度的440 nm参考波段吸收系数,建立遥感反演水体石油类污染浓度的模式,并利用31个野外现场实测值对模式精度进行了验证,结果表明,该模式的相对误差为7%;将该模式应用于国产卫星环境一号遥感数据,获取双台子河及辽东湾近岸水体石油类污染空间分布图。
- 有色可溶性有机物 /
- 吸收系数 /
- 光谱斜率 /
- 石油类污染 /
- 反演模式
Abstract: Petroleum substance for water body pollution has been the focus of attention of the world.an oil fire and explosion of Dalian Bay oil pipeline cause oil spill into the event,the water as well as the ocean to the ecological environment has caused enormous disaster,this makes from remote sensing technology perspective how effectively and accurately monitoring water petroleum substance change process,mobile path,the spatial distribution mentioned as schedule.The petroleum pollutant is one of organic contamination in water and it has showed by the present research that the influence of petroleum concentration in water on spectral absorption coefficient is mainly represented on absorption spectral features of yellow substance.In the fields of water colour remote sensing,optical absorption properties are mainly described with the absorption coefficient and the spectral slope.The experimental data including the absorption coefficient of CDOM,apparent optical properties and petroleum pollutant concentration are obtained in the regions of Panjin,Liaoning Province,China in May 2008, August 2009 and June 2010.With the measurement data,the exponential spectral slope was determined;the remote sensing model was establish based on the exponential spectral slope and the absorption coefficient at 440nm,then the validation was done with thirty-one samples.The result shows that the relative error is 6.884 7%.The model for water petroleum concentration retrieved from HJ-1 satellite is applied in the region of Liaodong Gulf.
- chromephoric dissolved organic matter /
- absorption coefficient /
- spectral slope /
- petroleum concentration /
- retrieval model

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