Korea has experienced extreme flooding due to frequent local rainfall in the last few years, and some times, severe droughts, as with the six to seven year cycle drought intensity on the rise. Therefore, the previous administration concentrated on the implementation of “The Four Rivers Restoration P...
Korea has experienced extreme flooding due to frequent local rainfall in the last few years, and some times, severe droughts, as with the six to seven year cycle drought intensity on the rise. Therefore, the previous administration concentrated on the implementation of “The Four Rivers Restoration Project” to overcome the water problems such as floods and droughts, through the proper refurbishment for maximizing the use of river basins. It has come to our knowledge, however, that the paradigm of river management should be changed from river oriented management to stream oriented management. Accordingly, a basic model was selected to secure the river water volume, which was calculated considering the features of the river basin. Then the reserved water was calculated by applying the model to the Geumho river basin and configuring the runoff system. Furthermore, the applicability of the selected basic model was reviewed by verifying and calibrating it, and reliability of calculation of the stream watershed runoff was improved. The results can be summarized as follows. The SSARR model was used to analyze the runoff volume, which is one of the features of runoff. The input data for the SSARR model were classified into physical, hydrometeorologic and internal process parameters. Geumho river basin was classified as a standard river basin for the improvement of its reliability. The parameters were calibrated targeting the measuremened data over the two year period of January 2002 to December 2003. To verify the calibrated parameters, the measured runoff and the simulated runoff were compared and analyzed over the one-year period of January to December 2010. The results of the sensitivity analysis showed that the SMI, BII, S-SS, Ts and PBLZ were the major parameters. The results of the parameter calibration showed that the relative errors before and after the calibration were 126.74% and 104.58% in 2002, respectively, and 236.05% and 206.77% in 2003. The results of the parameter verification showed that the relative error in 2010 was 109.02%. According to the results of the runoff feature analysis simulated during the verification and calibration period, the runoff rate during the calibration period were 64.09% in 2002 and 65.34% in 2003, and the runoff rate during the 2010 verification period was 57.34%. The results of the runoff feature analysis showed that the runoff rate of Geumho river was 62% on the average. In future, if the calculated runoff volumes of standard river basins are more reliably which is the outcomes of this research then detailed and stream oriented water resource management could be performed.
Korea has experienced extreme flooding due to frequent local rainfall in the last few years, and some times, severe droughts, as with the six to seven year cycle drought intensity on the rise. Therefore, the previous administration concentrated on the implementation of “The Four Rivers Restoration Project” to overcome the water problems such as floods and droughts, through the proper refurbishment for maximizing the use of river basins. It has come to our knowledge, however, that the paradigm of river management should be changed from river oriented management to stream oriented management. Accordingly, a basic model was selected to secure the river water volume, which was calculated considering the features of the river basin. Then the reserved water was calculated by applying the model to the Geumho river basin and configuring the runoff system. Furthermore, the applicability of the selected basic model was reviewed by verifying and calibrating it, and reliability of calculation of the stream watershed runoff was improved. The results can be summarized as follows. The SSARR model was used to analyze the runoff volume, which is one of the features of runoff. The input data for the SSARR model were classified into physical, hydrometeorologic and internal process parameters. Geumho river basin was classified as a standard river basin for the improvement of its reliability. The parameters were calibrated targeting the measuremened data over the two year period of January 2002 to December 2003. To verify the calibrated parameters, the measured runoff and the simulated runoff were compared and analyzed over the one-year period of January to December 2010. The results of the sensitivity analysis showed that the SMI, BII, S-SS, Ts and PBLZ were the major parameters. The results of the parameter calibration showed that the relative errors before and after the calibration were 126.74% and 104.58% in 2002, respectively, and 236.05% and 206.77% in 2003. The results of the parameter verification showed that the relative error in 2010 was 109.02%. According to the results of the runoff feature analysis simulated during the verification and calibration period, the runoff rate during the calibration period were 64.09% in 2002 and 65.34% in 2003, and the runoff rate during the 2010 verification period was 57.34%. The results of the runoff feature analysis showed that the runoff rate of Geumho river was 62% on the average. In future, if the calculated runoff volumes of standard river basins are more reliably which is the outcomes of this research then detailed and stream oriented water resource management could be performed.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.