中文摘要：

针对库容曲线校核时传统方法费时、费力、成本高等问题，以柘林水库为例，利用基于遥感技术的水体信息提取方法，采用71幅Landsat卫星遥感影像图，提取了库区内的水体面积，结合影像成像时间对应的实测水库水位值，根据统计原理拟合了水库死水位至正常蓄水位范围内的水位一面积曲线，据此推算了其水位一库容曲线。而后从遥感影像所用图幅、水体面积量算、曲线配准、水位值的准确度、影像分辨率大小等方面论证了新库容曲线的精度。分析1979--2016年的实测库水位，与原库容曲线相比，在52～65m级水位下，新库容曲线库容平均比老曲线相应值大4．16％。经检验表明，获取的新曲线精度满足水库调度运行要求，可为柘林水电厂防洪、发电调度运行提供可靠的基础资料。基于遥感技术的水库库容曲线复核方法节约成本、快速高效、准确可靠，具有较大的推广应用前景。

英文摘要：

Aiming at the problems that the conventional method for re-checking of reservoir storage capacity curve is time-consu- ming, strenuous, highly costed, etc. , the reservoir water-body area is extracted, by taking Zhelin Reservoir as the study case, with 71 remote sensing images of Landsat satellite on the basis of the remote sensing technology-based extracting method for water- body information, and combined with the measured water level of the reservoir when the images photographed, then the water lev- el-area curve of the reservoir within the elevation range of the dead water level and the normal storage level is fitted according to the relevant statistic principle. Thereafter, the accuracy of the new storage capacity curve is verified from the aspects of the di- mension of the remote sensing image adopted, water-body area measurement, curve alignment, accuracy of water level value, image resolution, etc. Compared with the original storage capacity curve, the storage from the new storage capacity curve is aver- agely larger than that from the old one by 4. 16% under the condition of the water level of 52-65 m measured in 1979 -2016. Through the relevant verification, it is indicated that the obtained new curve meets the requirement of the operation of the reser- voir, thus can provide a reliable basic data for the flood control and power generation operation of Zhelin Hydropower Plant. The remote sensing technology-based method for re-checking of reservoir storage capacity curve is cost-saving, fast and efficient, ac- curate and reliable, and then has a large popularization and application prospect.