洞庭湖吞吐调蓄数学模型及调洪功能评估  

THE FORMULATION OF A CORRELATION EQUATION FOR ESTIMATING LEVEL,AREA AND VOLUME OF THE DONGTING LAKE AND THE EVALUATION OF ITS CAPACITY OF REGULATING AND STORING FLOODWATER

作　　者：李湘莲[1] 陈金爱[1] 

机构地区：[1]湖南省遥感中心,长沙410007

出　　处：《国土资源遥感》2002年第1期57-60,共4页Remote Sensing for Land & Resources

摘　　要：洞庭湖是一个吞吐调节型湖泊 ,是我国第二大淡水湖。近年来 ,洪涝灾害十分频繁 ,人们的生命财产安全受到严重威胁。为满足洞庭湖减灾防灾综合治理的需要 ,本文通过对 8个不同时相的TM图像计算机解译和面积计算 ,查明了洞庭湖的面积和容积 ,建立了湖水面积与水位及湖水体积与水位的相关数学模型 ,并对其蓄洪调节能力进行评价 ,获得了满意的效果。Located in the middle-upper reaches of the Yangtze River, the Dongting Lake is the second largest fresh- water lake in China. In recent years, flood damage has occurred very frequently, and seriously threatened people's life and property. Through computer interpretation and area calculation based on TM images from eight different times, the area and volume of the lake were estimated and the mathematical equation of the area-level and volume-level were established. With this equation, the regulating and storing capacity of the lake was evaluated, and the results prove to be satisfactory and are of great significance in reducing damage and controlling flood.

关 键 词：洞庭湖 吞吐调蓄数学模型 评价 调洪功能 洪涝灾害 遥感图像 

分 类 号：TV873[水利工程—水利水电工程] P331[天文地球—水文科学]