Chlorophyll content retrieve of vegetation using Hyperion data based on empirical models
FENG Mingbo1,2,3, NIU Zheng1,2
1. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;
2. The State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing 100101, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China
Modeling using empirical methods based on Hyperion is a fast and accurate way to retrieve vegetation chlorophyll content. In this paper,the measured spectra and simulated Hyperion spectra were analyzed,the correlation between chlorophyll content and reflectance with its change forms and the relation between chlorophyll content and red edge parameters as well as vegetation indexes were calculated to obtain the most accurate modeling method. The vegetation index of modified simple ratio(MSR)has a significant correlation with chlorophyll content,and its regression model can retrieve chlorophyll concentration accurately. Using MSR and measured chlorophyll content,the authors built the regression model based on Hyperion data and then established the chlorophyll concentration profile. The chlorophyll concentration profile of Zhangye City was computed and a high-accuracy was achieved,with its relative error less than 5%.
丰明博, 牛铮. 基于经验模型的Hyperion数据植被叶绿素含量反演[J]. 国土资源遥感, 2014, 26(1): 71-77.
FENG Mingbo, NIU Zheng. Chlorophyll content retrieve of vegetation using Hyperion data based on empirical models. REMOTE SENSING FOR LAND & RESOURCES, 2014, 26(1): 71-77.
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