| 引用本文: | 闻建光,肖青,杨一鹏,柳钦火,周艺.基于Hyperion数据的太湖水体叶绿素a浓度遥感估算.湖泊科学,2006,18(4):327-336. DOI:10.18307/2006.0402 |
| WEN Jianguang,XIAO Qing,YANG Yipeng,LIU Qinhuo,ZHOU Yi.Remote sensing estimation of aquatic chlorophyll-a concentration based on Hyperion data in Lake Taihu. J. Lake Sci.2006,18(4):327-336. DOI:10.18307/2006.0402 |
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| 基于Hyperion数据的太湖水体叶绿素a浓度遥感估算 |
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闻建光1, 肖青1,2, 杨一鹏3, 柳钦火1, 周艺1
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1.中国科学院遥感应用研究所遥感科学国家重点实验室, 北京 100101;2.核工业北京地质研究院遥感重点实验室, 北京 100029;3.中国环境监测总站, 北京 100029
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| 摘要: |
| 通过对2004年8月19日太湖Hyperion高光谱遥感数据的处理和分析,文章首先采用比值和一阶微分处理技术进行了叶绿素a浓度的估算．为了弥补此两种方法在模型的适用性和通用性方面的不足,本文尝试了利用混合光谱分析模型进行太湖水体叶绿素a浓度的提取和成图．实验结果说明高光谱遥感数据Hyperion可以进行水体叶绿素a浓度的监测,并且作为高光谱处理技术之一的混合光谱分析技术是水体叶绿素a浓度估算的另一条佳径． |
| 关键词: 高光谱 Hyperion数据 水质遥感 混合光谱分析 太湖 |
| DOI：10.18307/2006.0402 |
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| 基金项目:中国科学院知识创新工程主要方向性项目(KZCX3-SW-334及KZCX3-SW-338)资助． |
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| Remote sensing estimation of aquatic chlorophyll-a concentration based on Hyperion data in Lake Taihu |
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WEN Jianguang1, XIAO Qing1,2, YANG Yipeng3, LIU Qinhuo1, ZHOU Yi1
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1.State Key Lab of Remote Sensing Science, Institute of Remote Sensing Applications, CAS, Beijing 100101, P. R. China;2.Beijing Research Institute of Uranium Geology, Beijing 100029, P. R. China;3.China National Environmental Monitoring Center, Beijing 100029, P. R. China
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| Abstract: |
| Processed and analyzed the hyperspectral data-Hyperion on August 19th 2004, we estimated chloro-phyll-a concentration using ratio and differential coefficient method in Lake Taihu. But these two models , applicability confined in single area and single phase. In this paper we used mixing spectral analysis model for extracting chlorophyll-a concentration and mapping the distribution of chlorophyll-a concentration. The result shows that the new style of remote sensing data Hyperion can be used for monitoring chlorophyll-a concentration，and that mixing spectral analysis is an optimal method for estimating water chlorophyll-a concentration. |
| Key words: Hyperspectrum Hyperion data remote sensing of water quality mixing spectral analysis Lake Taihu |
