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- W2364238306 abstract "叶绿素a是影响内陆水体光学特性的主要水色要素之一.作为反映水体富营养化程度的重要参数指标,国内外学者发展了大量的算法和模型进行水体中叶绿素a浓度的遥感反演.这些算法均使用固定的波段位置.叶绿素a的特征谱段随着其浓度的变化存在一定的位移,尤其是701nm反射峰,其存在着明显的红移现象,因此使用固定波段势必带来一定的误差.通过对不同叶绿素a浓度水样的光谱曲线分析,提出动态峰反演叶绿素a浓度的方法.使用反射峰范围最大值和吸收谷范围最小值,而不是固定波长位置进行建模,以求获得更高的反演精度.;Chlorophyll-a is one of the main water color elements which affect inland water optical properties, and it is the important parameter reflecting water eutrophic level. In the recent years, many methods and models are developed to retrieve Chl.a concentration. These methods or models all uses immobile bands. However, characteristic bands of chlorophyll-a move with the concentration changes. Especially, phenomenon of red-shift effect occurs obviously at 701nm reflective peak. As a result, using immobile bands to retrieve Chl.a concentration must bring some errors. In order to obtain higher precision, author in this article analyzed water spectra with different Chl.a concentrations and brings forward a new method of using dynamic apex to retrieve the Chl.a concentrations." @default.
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- W2364238306 date "2009-01-01" @default.
- W2364238306 modified "2023-10-04" @default.
- W2364238306 title "A reverse method of chlorophyll-a based on dynamic apex" @default.
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- W2364238306 doi "https://doi.org/10.18307/2009.0210" @default.
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