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金哲淳,林煥大,金雲中 조선대학교 국토개발연구소 1989 국토개발연구 Vol.9 No.1
This study places emphasis on invastigation each average rainfall record of the period of twenty years on the main districts(Kwangju, Mokpo, Yeosu) of Kwanju and Chunnam, and extracting the actually mesured amount of consistent rainfall per minute(10, 20, 30, 40, 60, 80, 100, 120, 180, 240, 300, 360, and 720 minutes). In order to study this paper, the caculation of probability rainfall amount selected four method(Formality distribation, Logarithm formality distribtuion, moment and Gumbel-chow method), and four appropriate types(Talbot, Sherman, Japanese and Semi-log types) for a Korean rainfall characteristic among various types are selected, the induction of optimal rainfall intensity formula is computerised, and laber saving and thechnical improvement is designed. The are as follows. 1. Semi-log type is suited to Kwangju district, and an average fit extent appeared to be 92.6%. 2. Japanese type is suited to Mokpo and Yeosu districts, and an average fit extent appeared to be 95.9% and 95.2%. 3. The average fit of this study's formulas appeared more high than the existing formulas.
小規模貯水池에 있어서 물넘이의 設計降雨量算定에 關한 硏究
金哲淳 조선대학교 국토개발연구소 1980 국토개발연구 Vol.2 No.1
In the spillway design of small reservoiers, the outflow of severe rainfall shorter than an hour is a diffisult problem. To calcurate the outflow, two Rainfall Intensity formula may be used. Thet are Exact calaulation method and Specific coefficient method. In this paper, comparing with these two methods, I havw obtained following results. 1) Depending on the Exact calculation method, Japanese type is applied better than other types in logarithmic normalization method and Gumbel-Chow method. 2) Depending on the Exact calculation method, Sherman type is applied better than other types in moment method. 3) The caseⅢ type by the Specific coefficient method is applied better than given data. 4) The calculation of probable Rainfall Intensity by the Specific coefficient method is more simpler than the Exact calculation method. 5) Therefore, Specific coefficient method can be applied to spillway design of the time of concentration shorter than an hour in small reservoiers.
特性係數法에 의한 確率降雨强度式 誘導 : 高興, 長興地方을 中心으로 on the kohung and changhung district
金哲淳,金雲中,表永平 조선대학교 국토개발연구소 1996 국토개발연구 Vol.16 No.1
This study has for the extract on invastigation the rainfall intensity lasting for 10 minutes. 60 minutes and we applied to this study the Isiguro characteristic coeficient value which is simple in calculation and is high in application in order to induce the Rainfall intensity formula of Kohung and Changhung that south seacost districts of Korea and then it was induced with three formula(Talbot, Sherman, Japanese) and comparatively analyzed again by the root mean square error. We would propose the Sherman method with the least error for the suitability in these districts. This formula will be the most economical and reasonable plan in making drainage plan in the Kohung and Changhung districts.
金哲淳 조선대학교 동력자원연구소 1985 動力資源硏究所誌 Vol.7 No.2
The purpose of this paper is to study and analyze the basic elements of the river basin morphology, the stream morphological characteristics, and the meandering characteristics of Tamjin river basin, the soutmost river in Korean Peninsula, and to provide the necessary informations for water utilization projects of Tamjin river. 1. The basic elements of the basin morphology, such as the average width, height, and density are quantified. 2. Analyzing on Horton's three laws on the stream morphology, it is found that the laws are well suited to the river. 3. There are high correlations between the river basin characteristics and the channel characteristics, that is, between the stream length and the river basin area, and between the relative height and the relative area. 4. We also find that the proportional stream order has a high correlation with the drainage area.
砥石江 水系의 形態學的 特性 硏究(Ⅱ) : 蛇行特性을 中心으로 On the Meander Characteristics
金哲淳,金雲中,表永平 조선대학교 국토개발연구소 1991 국토개발연구 Vol.11 No.1
Among the characteristics of the river geomorphology, the meander characteristics are the important elements for maintenance, control and embankment of the river. In this study the distributional conditions and the flectional characteristics among the complicated and geometrical factors of the river basin were analyzed by adopting the moment on the funtion of the probability density. And to eliminate the demerits from the modelling of the river configuration, the statistical method was introduced and applied. The results showed that the variances of the curvature can be a numerical index to analyze the meander density, and the kurtosis showed as a parameter that indicates the linear density of the river. And we found that the ratio of meander can be used for maintenance, control of the river and a bank planning from a viewpoint of flood control, that the curvature changes in accordance with the stream order, and that ramification rate is similar to other river systems in Korea.