Distribution of Bluealga Bloom over Dianchi Lake Monitored with MODIS Remote Sensing Images
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Abstract:
On the basis of the MODIS remote sensing images, the bluealga bloom over the Dianchi Lake was monitored by the pseudocolor composition (RGB: 621) and the normalized vegetation index methods, according to the spectral features in the blue, red, and nearinfrared wavebands. Through the satelliteground synchronization experiments, the accuracies of the two methods are verified. The pseudocolor composition method uses color difference to display bluealga bloom, which has better visual effect, while the normalization vegetation index method uses index values to decide bluealga bloom concentration quantitatively, which can be applied to quantitative investigation.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.