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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korea Water Resources Association
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Journal DOI :
Korea Water Resources Association
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Volume & Issues
Volume 39, Issue 12 - Dec 2006
Volume 39, Issue 11 - Nov 2006
Volume 39, Issue 10 - Oct 2006
Volume 39, Issue 9 - Sep 2006
Volume 39, Issue 8 - Aug 2006
Volume 39, Issue 7 - Jul 2006
Volume 39, Issue 6 - Jun 2006
Volume 39, Issue 5 - May 2006
Volume 39, Issue 4 - Apr 2006
Volume 39, Issue 3 - Mar 2006
Volume 39, Issue 2 - Feb 2006
Volume 39, Issue 1 - Jan 2006
Selecting the target year
Multi-Dimensional Flood Damage Analysis (Ⅰ): Principle and Procedure
Choi, Seung-An ; Yi, Choong-Sung ; Shim, Myung-Pil ; Kim, Hung-Soo ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 1~9
DOI : 10.3741/JKWRA.2006.39.1.001
Recently, the flood damages including losses of human lifes and property have been rapidly increased according to extreme floods. And we know that the flood control project is needed for diminishing flood damages. However, we have had the lacks in a reasonable methodology for the economic analysis of food control project. This study aims to improve the existing economic analysis method for flood control project. So, first of all, we understand the problems of existing economic analysis and investigate the methodologies of foreign countries. Based on that, the Multi-Dimensional Flood Damage Analysis(MD-FDA) is developed in this study. The survey of properties on the floodplain is conducted, then the damage rate obtained by evaluating the monetary values of surveyed property is applied, and the expected flood damage is calculated. Also by considering damage area in the floodplain as well as spatial distribution of inundated depth using GIS, the flood damages are evaluated more accurately than existing method. From the study, we know that the MD-FDA can improve the problems of existing method and evaluate the reasonable flood damages by using updated nation리 statistics.
Multi-Dimensional Flood Damage Analysis (Ⅱ): Application
Choi, Seung-An ; Yi, Choong-Sung ; Shim, Myung-Pil ; Kim, Hung-Soo ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 11~22
DOI : 10.3741/JKWRA.2006.39.1.011
This study is that MD-FDA and the existing method were applied together the outlet project under the construction in the Gulpo River basin. The results of both of them mot the economic feasibility of the Project. But, MD-FDA evaluated the suitable damage according to situations; 1) without project, 2) after 20m outlet construction, 3) after 80m outlet construction. That is, MD-FDA could exactly evaluate the Annual Expected Flood Damage by considering the characteristics to the inundated area. If M-FDA may use in the flood control projects, the projects will be able to be taken into account all characteristics of the total damage area and performed by reasonable criteria.
Evaluation of GIS-based Landslide Hazard Mapping
Oh, Kyoung-Doo ; Hong, Il-Pyo ; Jun, Byong-Ho ; Ahn, Won-Sik ; Lee, Mee-Young ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 23~33
DOI : 10.3741/JKWRA.2006.39.1.023
In this study, application potential of SINMAP, a GIS-based landslide hazard mapping tool, is evaluated through a case study. Through the application to the severe landslide events occurred during a heavy storm in 1991 on the Mt. Dalbong area about 78 kilometers south from Seoul, SINMAP successfully spotted most landslide sites. The effects and proper ranges of three calibration parameters of SINMAP, i.e. the soil internal friction angle, the combined cohesion of tree roots and soil, and T/R, were examined through comparison of predicted landslides with the landslide inventory data. From the findings of this study, it seems that SINMAP could be used as an effective screening tool for landslide hazard mapping especially for mountain areas with fairly steep slopes and relatively thin soil layers.
Evaluation of Risk Factors to Detect Anomaly in Water Supply Networks Based on the PROMETHEE and ANP
Hong, Sung-Jun ; Lee, Yong-Dae ; Kim, Sheung-Kown ; Kim, Joong-Hoon ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 35~46
DOI : 10.3741/JKWRA.2006.39.1.035
In this study, we proposed a layout of the integrated decision support system in order to prevent the contamination and to manage risk in water supply networks for safe and smooth water supply. We evaluated the priority of risk factors to detect anomaly in water supply networks using PROMETHEE and ANP techniques, which are applied to various Multi-Criteria Decision Making area in Europe and America. To develop the model, we selected pH, residual chlorine concentration, discharge, hydraulic pressure, electrical conductivity, turbidity, block leakage and water temperature as the key data item. We also chose pipe corrosion, pipe burst and water pollution in pipe as the criteria and then we present the results of PROMETHEE and ANP analysis. The evaluation results of the priority of risk factors in water supply networks will provide basic data to establish a contingency plan for accidents so that we can establish the specific emergency response procedures.
Derivation of a Tank Model with a Conceptual Rainfall-Infiltration Process
Park, Haen-Nim ; Cho, Won-Cheol ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 47~57
DOI : 10.3741/JKWRA.2006.39.1.047
This study derives an event-based tank model with a conceptual rainfall-infiltration process, modifying conventional tank models. The model comprises two serial tanks, one parallel tank and an infiltration regulating element. The infiltration process within the element is not represented as a function of only time, but as a function of soil moisture content for three possible cases owing to the relationship between rainfall intensity and infiltration capacity. This study considers the previous soil moisture condition of a watershed by using antecedent precipitation index. Six parameters of the model are identified by using the real coded genetic algorithm. The applicability and validity of the proposed model are assessed for the observed stormwater data from the research basin of the International Hydrological Program, the Pyeongchanggang River basin, Republic of Korea. The results computed streamflows show relatively good agreement with observed ones.
Development of Assessment Index for Water Resources Sustainability and Weights Evaluation of It`s Components
Kang, Min-Goo ; Lee, Gwang-Man ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 59~68
DOI : 10.3741/JKWRA.2006.39.1.059
To assess the water resources sustainability, many indicators and methodologies have been suggested by international organizations and developed in other countries. However, in the previous studies, some of indicators were unsuitable for assessing the sustainability of water use and management in Korea. Thus, in this study nSl(Water Resources Sustainability Index), a multi-variable index, was created by consideration of environmental, social, and economical criteria. Relative weights for components, indicators and sub-indexes, were determined by employing the Analytic Hierarchy Process. In order to extract the indicators related with water resources sustainability, the data related with water resources and indicators suggested in various field were compared and thoroughly reviewed. These indicators were classified into four groups; Economic Efficiency Index, Social Equity Index, Environmental Conservation Index, and Maintenance Capability Index. The weight of each component were decided by the survey of 127 specialists in water resources and sustainability. The result of survey represented that efficiency and equity of water use and water quality for river restoration are major issues in enhancing the water resources sustainability In addition, it was found that investment and public participation should be considered for sustainable water use.
History and Characteristic of Beach Erosion on Songdo Beach in East coast of Korea
Kim, Kyu-Nu ; Yoo, Hyung-Seok ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 69~77
DOI : 10.3741/JKWRA.2006.39.1.069
Songdo beach in Pohang City has suffered from bouts of beach erosion due to various reasons over many years. One of the most controversial issues is the extent of the harbor facilities effect on the beach erosion. In this study, the characteristics of erosion to Songdo beach were reanalysed using historical data and some aerial photos. Specifically, we set test cases based on the history of human modifications to the surrounding area and the topographic change around Songdo beach were investigated by 3D topographical deformation model. In the end, based on the results of these various kinds of investigation, this study found multiple causes of Songdo beach erosion.
River Water Temperature Variations at Upstream of Daecheong Lake During Rainfall Events and Development of Prediction Models
Chung, Se-Woong ; Oh, Jung-Kuk ;
Journal of Korea Water Resources Association, volume 39, issue 1, 2006, Pages 79~88
DOI : 10.3741/JKWRA.2006.39.1.079
An accurate prediction of inflow water temperature is essentially required for real-time simulation and analysis of rainfall-induced turbidity 烈os in a reservoir. In this study, water temperature data were collected at every hour during the flood season of 2004 at the upstream of Daecheong Reservoir to justify its characteristics during rainfall event and model development. A significant drop of river water temperature by 5 to
was observed during rainfall events, and resulted in the development of density flow regimes in the reservoir by elevating the inflow density by 1.2 to 2.6 kg/
Two types of statistical river water temperature models, a logistic model(DLG) and regression models(DMR-1, DMR-2, DMR-3) were developed using the field data. All models are shown to reasonably replicate the effect of rainfall events on the water temperature drop, but the regression models that include average daily air temperature, dew point temperature, and river flow as independent variables showed better predictive performance than DLG model that uses a logistic function to determine the air to water relation.