Retrieval of Chlorophyll-a Concentration in Inland Water by Integrating GF-1 and Hyperspectral
Through the analysis of the characteristics of the reflection spectrum of the water containing Chlorophyll-a and the remote sensing monitoring of inland water quality by integrating the domestic high-resolution satellite and the near earth hyperspectral data,a remote sensing inversion method of Chlorophyll-a concentration is formed.Based on the correlation analysis between the characteristic band of GF-1 remote sensing data and the measured near earth hyperspectral data,a joint inversion estimation model of Chlorophyll-a concentration is constructed,and the correlation coefficient is 0.794.The linear fitting between the measured and predicted data shows that the good-ness of fit is 0.780 5,the root mean square error is 2.11 and the average relative error is 20.56%,which basically meets the needs of remote sensing inversion of Chlorophyll-a concentration in the reservoir.Typical reservoirs in Hunan Province are selected to monitor the spatial distribution of Chlorophyll-a concentration through standardized classification,so as to provide technical support for quickly mastering inland water pollution control and risk as-sessment in the later period.
Chlorophyll-aremote sensing monitoring of water qualityGF-1near-earth hyperspectralremote sensing inversion
万方数据
维普
