The optimal hyperspectral quantitative models for chlorophyll-a of chlorella vulgaris

Qian Cheng; Xiuju Wu

doi:10.1117/12.828317

18 September 2009 The optimal hyperspectral quantitative models for chlorophyll-a of chlorella vulgaris

Qian Cheng, Xiuju Wu

Proceedings Volume 7472, Remote Sensing for Agriculture, Ecosystems, and Hydrology XI; 74721R (2009) https://doi.org/10.1117/12.828317
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

Chlorophyll-a of Chlorella vulgaris had been related with spectrum. Based on hyperspectral measurement for Chlorella vulgaris, the hyperspectral characteristics of Chlorella vulgaris and their optimal hyperspectral quantitative models of chlorophyll-a (Chla) estimation were researched in situ experiment. The results showed that the optimal hyperspectral quantitative model of Chlorella vulgaris was Chla=180.5+1125787(R₇₀₀)'+2.4 *10⁹[(R⁷⁰⁰)']² (P0<.01), and the suitability order of corresponding methods was spectral ratio<single band < reflectance first-derivative. According to hyperspectral characteristics of Chlorella vulgaris, two reflectance crests were around 540 nm and 700 nm and their locations moved right while Chl-a concentration increased. The reflectance of Chlorella vulgaris decreases with Cha concentration increase in 540 nm, but on the contrary in 700nm.

Citation Download Citation

Qian Cheng and Xiuju Wu "The optimal hyperspectral quantitative models for chlorophyll-a of chlorella vulgaris", Proc. SPIE 7472, Remote Sensing for Agriculture, Ecosystems, and Hydrology XI, 74721R (18 September 2009); https://doi.org/10.1117/12.828317

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