제 4 주제 : 영 호남 대학간 학술교류 및 네트워크 구축방안 / 지홍기

지홍기 영남대학교 영남지역발전연구소 2000 영남지역발전연구 Vol.26 No.-

洪水豫測을 위한 降雨-流出시스템 모델

池洪基 嶺南大學校 工業技術硏究所 1986 연구보고 Vol.14 No.2

To predict flood runoff from rainfall and watershed characteristics, Nash's parameters of N, K are needed to be determined. Also parameters of IUH N and K are derived by the moment method. Nash's model whose parameters are derived from rainfall characteristics is applied to the Wi-stream basin, which is a tributary located in the Nakdong river. For the derivation of IUH by applying linear conceptual model, the storage constant, K, with the rainfall characteristics was adopted as K= ?? having a highly significant correlation coefficient, 0.970. Gamma function argument, N, derived with such rainfall characteristics was found to be N= ?? having a highly significant correlation coefficient, 0.970. From the tested results it is proved that Nash's IUH and consequently flood runoff can be predicted from rainfall characteristics.

月流出量 推定을 위한 回歸模型 : 洛東江 流城을 中心으로 in Nakdong River Watershed

池洪基 영남대학교 공업기술연구소 1984 연구보고 Vol.12 No.1

The stream morphological characteristics of a watershed play a significant role in the analysis of rainfall-runoff relations in a river basin and a quantitative description of these characteristics is essential for determining the appropriate values of physical parameters of a watershed which usually a input data for rainfall-runoff simulation models. Most hydrologic phenomena are the complex and organic products of multiple causations like climatic and hydro-geological factors. In this study, the stream morphological characteristics of the Nakdong river basin, which is one of the major basins of Korea, was determined quantitively by the topographical map. Modeling processes are summarizes as follows; from a simplified equation of water-balance on a watershed a regression model for monthly stream flow using the variables of rainfall, pan evaporation, and previous-month rainfall was formulated. And prediction equations were derived from the stepwise regression analysis of watershed characteristics. It was also possible to explain geographic influences on stream-flow through those prediction equation.

兄山江流域에서의 水資源開發 計劃을 위한 最適化技法

池洪基 영남대학교 지역발전연구소 1990 새마을지역개발연구 Vol.11 No.-

The object of this study is to formulate the optimization model of the water resources development and water usage for the future water supply in the Hyungsan river basin. Above all, the hydrological characteristics and the water usage pattern in the basin are analyzed, and from the results of these analyses, the water demand forecast and the water budget analysis in the basin are carried out. Next, in the water resources supply plan in the Hyungsan river basin, the water resources in the Hungsan river basin is much lacking in the water demand of the regions, therefore in the Kyeunlju, Weolsung and Pohang region the water shortage must be supplied form Duckdong Dam, Bujo Intake Station, Yeungduck Dam, Yeungchun Dam, Doil Dam, Imha Dam and self-water resources etc. and the system of the supply plan is organized. Finally, by means of the optimization method for the water resources development the Integer Programming Model is used, and first-order and second-order benefit functions of the water supplying from the water-source regions to the water-demand regions are derived and is applied at the Integer Programming Model. In the results of these analyses, the water resources supply in the Hyungsan river region must be adopted the water allocation system of the inter-basins water transfer, and if Yeungduck Dam, Doil Dam and Imha Dam have been constructed for the water supply till 1991, 1996 and 2001 respectively, the water demand in Hyungsan river basin will be supplied steadily.

實驗水路에 대한 數値的 흐름追跡

池洪基 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.9 No.2

This study has been aimed at the development of the models for experimental channel routing by analytical method and measuring by experimental method. In the analytical routing method, the implicit scheme was chosen. In the experimental method, the flow procedure was measured and compared with result of analytical routing method. The experimental channel consists of tilting channel which was attached water height meter and personal computer which calculates input data. The channel routing by implicit scheme was found to be similar to the experimental value. While investigating the characteristics of these experimental measuring system, it was concluded that combined personal computer system is expeditious and accurate for correcting and control the data. It is also available for the strage and manage the data.

洛東江 流域의 流域特性을 考慮한 降雨-流出 모델

池洪基 동국대학교 대학원 1984 大學院硏究論集-東國大學校 大學院 Vol.14 No.-

The stream morphological characteristics of a watershed play a significant role in the analysis of rainfall-runoff relations in a river basin and a quantitative description of these characteristics is essential for determining the appropriate values of physical parameters of a watershed which usually a input data for rainfall-runoff simulation models. In this study the stream morphological characteristic of the Nakdong river basin, which is one of the major basins of Korea, was determined quantitatively by the topographical map. Most hydrologic phenomena are the complex like climatic and hydrogeological factors. A certain significant correlation on the runoff in river basin would be expected and foreseen in advance, and the effect of each those causual and associated factors (independant variables; basin area, stream length, centre length, basin shape, stream slope, elevation, row crops ares, small grains area, woods area and annual rainfall) upon annual runoff (dependant variable) may be determined by multiple regression analysis. Function between independant and dependant variables should be treated repreatedly until satisfactory and optimal combination of independant variables can be obtained. In this study, annual runoff is estimated by multiple linear regression model and log-li-near regression model.

洛東江 流域의 流域特性을 考慮한 降雨-流出 모델

池洪基 동국대학교 대학원 1984 연구논집 Vol.14 No.

新川流域 環境改善을 위한 維持用水 確報 方案 : 신천유역 환경개선을 위한 유지용수 (維持用水) 확보 방안

池洪基,張仁洙 영남대학교 지역발전연구소 1991 새마을지역개발연구 Vol.12 No.-

槪念的모델에 의한 河川流出豫測 : -HBV 모델 및 Tank 모델을 中心으로-

池洪基 영남대학교 공업기술연구소 1989 연구보고 Vol.17 No.1

The purpose of this study is to develop a conceptual model to forecast streamflow which is a part of hydrologic cycle process occurring in a river basin and puts it in practice. This model is a time-variant system that soil moistues condition shows dynamic behavior in rainfall-runoff process, and model parameter reflecting soil moisture condition is expressed by the function of Antecedent Precipitation Index(API). The types of API used in model parameter estimation are reciprocal type and exponential type, and the result of simulation shows that reciprocal type is superior to exponential type. Consequently, the conceptual model which expresses the behavior of soil moisture condition by the function of API(reciprocal type), is a very useful model in streamflow forecast.

數値解法에 의한 洪水追跡모델

池洪基 嶺南大學校 工業技術硏究所 1989 연구보고 Vol.17 No.2

This study has been primarily aimmed at the development of the models for the channel routing by numerical method. In the routing models, the numerical analysis techniques which came from governing equations were derived and deformed from the basic equations of unsteady varid flow. The technique of numerical method was made use of the governing equations which was performed by the explicit scheme and the implicit scheme. The proposed models which deal with the channel routing were applied to the Nakdong main stream (from Waegwan to Koryung), and which were computed flood hydrographs. From these results compared observed flood hydrographs with computed flood hydrographs. In this analysis described the results of implicit scheme were better than those of explicit scheme in stablity and convergency.