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Water quality monitoring is one of important method for solving water pollution problem. Chlorophyll-a concentration is one of the indicator which can describe eutrophication of water bodies. In this paper, water samples and their hyper spectral reflectance data were collected simultaneously, and then analyzed in laboratory. Results show that water bodies in Shijiazhuang city, north part of China,...
Lakes are very important in freshwater supply. At present, most of the lakes in the world are suffering from eutrophication with industrialization, economic growth, and human activities. Frequent monitoring and integrated management are necessary for lakes. Chlorophyll-a (chl-a) is the important indicator of phytoplankton and water quality. However, conventional methods for monitoring chl-a in lakes...
This research investigated the distribution of eutrophication degree in Nansi Lake using remote sensing data. Nine sampling points were monitored with Chla, TP and TN three parameters in upper lake of Nansi Lake. TSI of each sampling points was calculated using Carlsonpsilas TSIM. Then the linear model between remote sensing data and TSIM of each field monitoring points in upper lake of Nansi Lake...
Image fusion techniques can improve the quality, and increase the application of satellite images. The wavelet transforms provides a preeminent approach for the improvement of the spatial resolution with minimal distortion of the spectral content of the source image. Three types of wavelet bases and four types of wavelet transforms are used to perform the fusion between MODIS and NOAA images. The...
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