• 한국환경과학회지
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• 제11권4호
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• pp.399-403
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• 2002

This study was designed to analyse the odor from Nam river. The characteristic odor in the water occurred from geosmin and phenol, p-cresol and indol were detected from sediment/water samples. The others were detected as alcohols and fat acid compounds. Algae causing odor and taste were identified as Oscillatoria sp. and Synedra acus. 15 species of phytoplankton, a zooplankton, an eelworm and chironomus were identified in water/sediment sample.

• 상하수도학회지
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• 제25권3호
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• pp.349-357
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• 2011

This study has an objective to estimate effect on water-quality enhancement by removal of contaminated river-bed material using a two-dimensional numerical modeling in the Seonakdong River, the Pyunggang River and the Maekdo River. RMA2 and RMA4 models were used for flow and contaminant transport simulation, respectively. After the analysis of the effects of flow restoration plan for the Seonakdong River system made by Lee et al (2008), simulation have been performed about scenarios which contains operations of the Daejeo Gate, the Noksan Gate, the Makdo Gate (on planning), and the Noksan Pumping Station. Because there is no option for elution from bed sediment in the RMA4 model, a simple technique has been used for initial condition modification for elution. The analyses revealed that the effect on water quality improvement due to dredging of bed sediment seemed to be less than 10 % of the total effect. The most efficient measure for the water quality improvement of the river system was the linked operation of water-gates and pumping station.

• 한국수자원학회논문집
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• 제45권3호
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• pp.331-347
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• 2012

남강댐 하류는 부산 경남의 수자원 장기 계획에 중요한 지역이므로 지속가능한 지표수 관리 및 오염원 제어를 위해 흐름 및 수질 해석이 필요하다. 따라서 본 연구에서는 2차원 수질모형인 RAM4와 3차원 수질모형인 WASP을 각각 수리모형인 RAM2 및 EFDC모형과 연계하여 2 3차원 준연계 모형을 이용한 남강댐 하류에서의 수리 및 수질을 해석하였다. 2차원 흐름해석 모형인 RAM2 적용 결과 만곡부 5개 횡단 측선에서의 유속의 증감경향이 ADCP 실측값과 잘 일치하였으며, 3차원 모형인 EFDC와 유속 분포 및 보 월류 유속이 유사하였다. 또한 정상상태 도달 후의 RAM2-RAM4 연계모의에 의한 BOD 농도와 EFDC-WASP 연계모의에 의한 BOD 농도장이 모의영역 전반에 걸쳐 유사하게 나타났다. 남강댐 하류부의 경우 수리 및 수질이 남강댐 방류량에 크게 좌우되며 남강댐의 수량은 하류부의 수질 및 연안 어업환경에 큰 영향을 미치므로 향후 이에 대한 정량적 분석 시 계산의 효율성 및 모형의 적용성 측면에서 2차원 준연계 모형을 적용하는 것이 바람직한 것으로 판단된다.

• 한국환경과학회지
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• 제28권6호
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• pp.571-579
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• 2019

In this study, monthly average values of BOD, COD, and TOC observed for 10 years (2008-2017) in the Nam River were estimated, and monthly variations of BOD, COD, and TOC were analyzed. Monthly average COD was always higher than monthly average BOD; monthly average TOC was high from June to September when rainfall was high. Monthly correlation coefficients between BOD and COD ranged from 0.57 to 0.94, those between BOD and TOC from 0.45 to 0.93, and those between COD and TOC from 0.75 to 0.93. The correlation coefficients were high from November to February when rainfall was low. Regression analyses for monthly average water quality data of the Nam River classified into dry season (October to April) and wet season (May to September) were conducted. Correlation coefficients were higher in the dry season than those in the wet season, and the determination coefficients of linear regression functions for BOD and COD with TOC were also higher in the dry season than those in the wet season. From this study, it can be concluded that it is appropriate to use monthly data to analyze the correlations among BOD, COD, and TOC in the stream. To analyze the relationship between TOC flowing into the stream and BOD/COD, it was found that seasonal characteristics should be considered.

• 비교문화연구
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• 제35권
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• pp.79-95
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• 2014

This article aims at rethinking on people of Modern styles in early modern period with reference to A Large River[Dae-Ha] written by Kim Nam-cheon at 1939. Park Sung-guoen could be called to Homo Economicus, first, have maximized of self-interest in rapid changes of Korea society with loan sharking, rising to upper class in new early modern era instead of traditional nobleman. Park Hyung-geol could be said romantic guy, second, have chased romatic love consist of three elements(love-sex-marriage). But he troubled his love affairs to his family members frustrated his will because of a bastard son. It is the model of situations, Kim Nan-cheon intended to describe, that Homo Economicus became an object of envy among people in early modern society as well as the choice has been hard in conflicting between family and lover, concretizing anachronism through history of family.

• 한국지역지리학회지
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• 제14권3호
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• pp.199-211
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• 2008

본 연구에서는 지명 '호남'에서 '호'의 기준점과 지명 등장 시기에 대한 기존의 논의를 살펴보고, 기준점이 명확하게 제시되지 못하는 이유를 지명이 의미하는 지리적 범위의 변화 가능성에 중점을 두어 논의했다. 그 결과는 다음과 같다. 첫째, 기존에 제시되고 있는 '호'의 기준을 검토해 본 결과, 현재 인식하고 있는 '호남=전라도'를 기준으로 했을 때 방향과 지역적 장애 측면을 고려하면 호남 3호보다는 금강을 기준으로 그 남쪽 지역이라는 의미로서 '호남'이 타당성을 지닌다. 둘째, 기존에 제시되고 있는 기준 중에서 호남과 호서를 동시에 만족하는 지리적 기준점은 없다. 두 지명은 각각 다른 기준점을 기준으로 등장했을 가능성이 높다. 그러나 현재 인식하고 있는 '호남=전라도', '호서=충청도'와 같은 지리적 개념이 아닌 문화적 개념으로서 두 지명이 사용되기 시작한 시점은 조선시대 초기로 동일하다고 할 수 있다. 셋째, 고려시대와 조선시대에 각각 '호남'이 의미하는 지리적 범위가 각각 달랐을 가능성이 있다. 즉, 지명이 처음 등장한 고려시대 때에는 기준점의 남쪽이라는 지리적 의미가 중요했으나, 조선시대에는 문화권 개념으로 정착되면서 의미하는 지리적 범위도 변화했을 가능성이 있다. 넷째, 지명 등장 시기가 고려시대이고, 조선시대 이후 지리적 범위 변화가 있었다는 가정을 전제로 했을 때 호남 지방에서 '호(湖)'의 기준은 한강일 가능성이 있다.

• 한국농공학회지
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• 제11권4호
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• pp.1827-1831
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• 1969

Resulties of research on the capacity of ground water of 994 concrete-pipe-wells and 97 infiltration-gallerys in ground-water-developement-works region executed from March to Julyin 1969, in Choong Chung Nam Do, and research on the quality of ground water for 88 wells for home-use around of River Geum Area, are as fellows: (1) Thickness of aquifer is no more than 2.85m averagely even at river-overflowed plain, alluvial plain and valley plain area that are estimated to contain ground water mostly. And so, it is guessed that ground water capacity is not much especially. (2) Soil of aquifer of the above area is sand or gravel and it is estimated to be good for ground water developement and its mean permeability coefficient is bout $2.5{\times}10^{-3}$(m/sec), and its porosity is about 33.9%. (3) The quality of ground water is good for irrigation water exception of delta plain area. Warm water plan is to need for irrigation water when water temperature is less than 19 degrees below zero. (4) Prospect of ground water developement, judging from quality and quantity, expects to lay infiltration gallery under the ground at river bed in order to utilize under-flow-water of river bed, river-overflowed plain, alluvial plain and valley plain that ground level is less than 50m. (5) Collectable water volume of under-flow-water of river bed is about 450 to $750m^3/day$ to be able to irrigate 3ha to 5ha of the cultivated land in case that infiltration gallery length is 50m and its depth is about 5m. (6) Collectable water volume at river-overflowed plain, alluvial plain and valley plain area, is estimated $150m^3/day$ to be able to irrigated 1ha of the cultivated land.

• 하천과문화
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• 제2권4호
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• pp.89-101
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• 2006

끊어진 길과 넘어진 전봇대, 굴러 내려온 나무들 사이로 하진부 3리 모낼골 입구에 도착했을때, 나는 말과 생각이 확 멈춰버렸다. 골짜기 입구에 있던 네 집 중 세 집이 사라진 것이다. 길도 사라지고 사람도 사라졌다. 흙 위로 삐죽 올라온 함석이 그곳에 집이 있었다고 알려줄 뿐이었다. 이집 노인들은 다 어디로 갔을까, 저 흙 속에 묻힌 것일까, 살아는 있을까.

• 한국습지학회지
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• 제4권2호
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• pp.57-66
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• 2002

The local storm occurred Nakdong river basin from August 4 to 11 of the year 2002, resulting in a record 500-600mm rainfall. The heavy rain continued for more than 10 days and especially between 3 to 4 am of August 9, 50mm per hour local storm occurred in Hanrim-myun area, Kimhae. 8 days after the storm, the water level of Nakdong river rose rapidly and the river flowed backward the branches. T he draining of the protected low wetland was unable and the water level of the inner bank area rose suddenly, causing the inundation in several areas. Baeksan bank of Nam river, Gahyun(Samhak) bank of Hwang river, and Kwangam bank of Shinban river, where the draining facilities were under construction or constructed recently, were failed by the piping around the draining culvert. This study analyze the cause of the damage in Nakdong river banks and suggests the countermeasures for future improvement. The damaged spot of the river bank was surveyed, and the rainfall and the fluctuation in the water levels were reviewed. Finally for the flood inundation prevention at the inner bank area, new floodplain management plan as the protect of low wetland established.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2021년도 학술발표회
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• pp.139-139
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• 2021

Flooding events often result from extreme precipitations driven by various climate mechanisms, which are often disregarded in flood risk assessments. To bridge this gap, we propose a climate-mechanism-based flood frequency analysis that accommodates the direct linkage between the dominant climate processes and risk management decisions. Several statistical methods have been utilized in this approach including the Markov Chain analysis, K-nearest neighbor (KNN) resampling approach, and Z-score-based jittering method. After that, the impacts of climate change are associated with the modification of the transition matrix (TM) and the application of the quantile mapping approach. For this study, we have selected the Nam River Basin, South Korea, to consider the heterogeneous impacts of the two climate mechanisms, including the Tropical Cyclone (TC) and non-TCs. Based on our results, while both climate mechanisms have significant impacts on future flood extremes, TCs have been observed to bring more significant and immediate impacts on the flood extremes. The results in this study have proven that the proposed approach can lead to a new insights into future flooding management.