| Investigation of Ungauged Water Resources Infrastructure in The Korean Peninsula using Satellite-Based High-Resolution Topography Data |
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학술지명 The 28th International Symposium on Remote Sensing
저자 황의호,강기묵,남기범,김진겸
발표일 2023-04-20
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The Korean Peninsula is divided into North and South Korea, and there are shared rivers called the Imjin River and the North Han River in the border area. About 70% of these basins are located in North Korea, with 13 dams in operation and 4 additional dams under construction. The current status and operation forecast of dams in North Korea are essential for flood forecasting and warning in the downstream area of the shared river. Still, limited analysis has been performed because access to hydrological information in North Korea has not been secured. Since the on-site investigation of water infrastructure in North Korea is impossible, it was common to report to the international community or investigate through past literature. In this study, detailed specifications of water resources infrastructure and capacity and characteristic curves of reservoirs were investigated in the border area using high-resolution DSM (Digital Surface Model) created from high-resolution satellite images. The length, height, and shape of the dam were investigated using the outline of the structure revealed in topographical data, and the effective storage capacity and water level-reservoir curve were analysed through spatial interpolation of the reservoir topography. These results will be used as primary data for estimating the operation method of dams in the border area and are expected to be used for water resource management and planning on the Korean Peninsula. |