Abstract:

Facing to the situation of the more and more serious eutrophication of water body and frequent eruption of water bloom,the earlywarning of water bloom has become urgent affairs in order to reduce the frequency and losses of water bloom eruption.The water bloom is a product of combined factor action,these factors include nutrient accumulation,climate and hydraulic condition,on the basis of dynamic monitoring information fusion,it is necessary to seek the innuendo relationship between the water bloom and these influencing factors,so the information fusion technology is needed.Through summarizing the research advance of the multisource information fusion technology in water bloom earlywarning for interior lake,according to the present practical demands of water bloom earlywarning,the study prospect and concrete ideas which based on the mutisource information fusion technology of decisionmaking support system for water bloom earlywarning are proposed.Information fusion technology provides a good platform for earlywarning of water bloom.The regional incomplete observation information coming from the different information sources(hydrology, weather,water environment quality and environmental remote sensing etc.) could be integrated and complemented by the information fusion technology,and the superabundance and conflict among the multiinformation could be eliminated.On the basis of it,the relatively integrated sensing and describtion of erupting environment of water bloom could be presented.Therefore, the effeciency of earlywarning and emergency response could be improved,and the time and space resolution ratio could be improved,and monitoring area of the information could be extended.

Key words: water bloom, earlywarning, envinmental remote sensing, multisource information fusion, decision support system