Study On The Method Of Remote Sensing Monitoring Wuliangsuhai "Yellow Alga"

Lake Wuliangsuhai "yellow alga" outbreak has become one of the hot issues of domestic water quality monitoring on palm, accurate "yellow alga" in time, frequency and size distribution analysis, is "yellow alga" principle, to find the inducing factor, the outbreak of the prerequisite for effective measures to control outbreaks. In this paper, on the basis of previous research results, algather analysis of the Wuliangsuhai Lake "yellow alga" thermal infrared remote sensing characteristics, found a dedicated to monitoring the "yellow alga" thermal infrared remote sensing inversion algorithm, the success of Wuliangsuhai Lake "Huang Tai broke out," found "yellow alga" outbreak of time, the size, position, range. Practice shows that the difference between thisalgorithm and the past, conventional remote sensing monitoring that can effectively avoid the interference of chlorophyll and aquatic plants on the "yellow alga" remote sensing monitoring, improve the monitoring accuracy, in the inversion "yellow alga"distribution, in the lake the size of the application effect is obvious, and may play an important role in the other water monitoring work.Through the collection of5-8in Lake Wuliangsuhai Environment Remote Sensing Satellite Data in2011-2013years, the "yellow alga" distribution inversion, get all theblack Liang Suhai "yellow alga" in time, intensity, outbreak scale information, process analysis and Liang Suhai "yellow alga" produce, development, outbreak, the end,found in Wuliangsuhai Lake "yellow alga" in20122011, at least two outbreaks of considerable strength,2013at least an outbreak of a greater intensity of theoutbreak, concentrated in the mid to late5and early August, by contrast,"chlorophyll concentration yellow alga" area and the lake area, the water may have certain correlation. Through simple analysis found that, when the whole lake area continued to decrease, likely to be the "yellow alga" outbreak outbreak increases, theintensity will increase; when the lake area is stable,"Huang Tai" area is maintained at a relatively stable level; and in the "yellow alga" burst and Mingshui chlorophyll the concentration will continue to increase or decrease, but "change yellow alga" and chlorophyll concentration area is not fully synchronous,"Huang Tai" an explosion are often more sudden; but after the outbreak of chlorophyll concentration will Mingshuiarea were much lower degree, the "yellow alga" outbreak has certain purification function on water environment.