Optimal Determination and Dynamic Control Analysis of the Graded and Staged Drought Limit Water Level of Typical Plateau Lakes

The technical research on determining the drought limit water level can be used as an important basis for starting emergency response of resistance in basin and guiding scheduling conservancy projects. When concept was first proposed, main object reservoirs, method lake not established. Referring to calculation reservoir level, is a single warning indicator throughout year, which lacks graded staged standards, also rationality effectiveness practical application. Therefore, this article has improved (flow). Under different degrees use patterns during period, combined with characteristics inflow, considering factors such ecology, supply, demand, evapotranspiration loss, standard been developed. For types lakes, general lake’s SCSSA-Elman neural network construct medium long-term inflow prediction model results are dynamic control analysis level. application strong applicability high reliability. Finally, determination have successfully applied at Dianchi Lake Yunnan.