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김맹기,고수미,남궁지연 公州大學校 基礎科學硏究所 1999 自然科學硏究 Vol.8 No.-
이 연구에서는 기후모델의 수치적분자료를 재순환 모델에 적용하여 지구온난화가 대륙의 증발-강수 재순환 비율에 미치는 영향을 정량적으로 평가하였다. 규준실험에서 나타난 증발-강수 재순환 비율은 지역과 계절에 관계없이 30%를 넘는 경우는 발견되지 않았으며, 저위도 보다는 중위도 지역에서 재순환 비율의 계절변동이 크게 나타났다. 지구온난화에 수반된 재순환 비율은 규준실험에서 나타난 비율에 비해 대체로 감소하는 것으로 나타났다. 이는 대륙 강수량이 지면 증발에 의한 영향보다는 영역 밖의 해양에서 제공된 수증기가 대륙으로 수송되어 미치는 영향이 더 중가한다는 것을 의미한다. 다만 중위도 봄철에는 지면 증발에 의한 영향이 재순환 비율의 증가에 상당부분 기여하는 것으로 평가되는데, 이는 지구온난화에 따른 봄철의 눈녹음이 강화되어 토양수분을 증가시키는 현상과 밀접하게 관련되어 있었다. Based on the evaporation-precipitation recycling model, the recycling ratio was evaluated using the data obtained from 3 type simulations of climate model. The degree to which regional precipitation is supplied by recycled surface evaporation is about 30% below, and have more significant seasonal cycle in mid-latitude than in low-latitude, in control experiments. The recycling ratio due to global warning is reduced for all month, indicating that the contribution of surface evaporation to regional precipitation is smaller than that of evaporation in upstream ocean. But, in mid-latitude spring, the contribution of surface evaporation to regional precipitation was enhanced snow melting associated with global warming.
남궁지연(Ji-Yeon NamGung),유재훈(Jae-Hoon Yu),김남원(Nam-Won Kim),최만규(Man-Kyu Choi),함동주(Dong-Ju Ham),김훈상(Hoon-Sang Kim),장유정(You-Jung Jang),최은경(Eun-Kyung Choi) 한국기상학회 2005 대기 Vol.15 No.4
The effect of inversion layer on the land and sea breeze near the Gangneung city was investigated. The land and sea breeze occurrence days were selected, and the height and the intensity of inversion layer were calculated with the upper air observational data of the Sokcho Station. The relationships between the temperature variation near the Gangneung and the inflow time, inland penetration and the inflow depth of the land and sea breeze were also analyzed. And the Gangwon Short-range prediction system was verified with the comparison of surface stream line by the Gangwon short-range prediction system with the AWS wind vector data. It was revealed that the inversion layer tended to block the sea breeze, shorten the inland penetration distance and lower the inflow depth, causing the temperature rise. The comparison and analysis of surface steam line by the Gangwon short-range prediction system and the AWS wind vector showed that the system quite well simulated the sea breeze, thus the system could be well utilized in the prediction of land and sea breeze.
권태영(Tae-Yong Kwon),함동주(Dong-Ju Ham),이정순(Jeong-Soon Lee),김삼회(Sam-Hoi Kim),조구희(Kuh-Hee Cho),김지언(Ji-Eon Kim),지준범(Joon-Bum Jee),김덕래(Deok-Rae Kim),최만규(Man-Kyu Choi),김남원(Nam-Won Kim),남궁지연(Ji Yoen Nam Gung) 한국기상학회 2006 대기 Vol.16 No.3
The Yeong-dong heavy snowfall forecast supporting system has been developed during the last several years. In order to construct the conceptual model, we have examined the characteristics of heavy snowfalls in the Yeong-dong region classified into three precipitation patterns. This system is divided into two parts: forecast and observation. The main purpose of the forecast part is to produce value-added data and to display the geography based features reprocessing the numerical model results associated with a heavy snowfall. The forecast part consists of four submenus: synoptic fields, regional fields, precipitation and snowfall, and verification. Each offers guidance tips and data related with the prediction of heavy snowfalls, which helps weather forecasters understand better their meteorological conditions. The observation portion shows data of wind profiler and snow monitoring for application to nowcasting. The heavy snowfall forecast supporting system was applied and tested to the heavy snowfall event on 28 February 2006. In the beginning stage, this event showed the characteristics of warm precipitation pattern in the wind and surface pressure fields. However, we expected later on the weak warm precipitation pattern because the center of low pressure passing through the Straits of Korea was becoming weak. It was appeared that Gangwon Short Range Prediction System simulated a small amount of precipitation in the Yeong-dong region and this result generally agrees with the observations.