• Journal of the Korean Geographical Society
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• v.39 no.1
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• pp.13-26
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• 2004

This paper examined the possibility of NET application for a relative weather stress index in Korea. The characteristic of NET distribution used temperature, relative humidity, wind speed which forecasting at Korean Meteorological Administration were analyzed. Regional critical values of daily maximum NET of stress index for summer resembled the distribution of daily maximum temperature because were not impacted wind and humidity but temperature. Regional critical values of daily minimum NET of stress index for winter distributed variously compared with summer. The highland region and the northern region of Seoul were impacted of low temperature and coastal region which strong wind. The occurrences of stressful days did not vary in summer, but obviously increased in winter after mid-1990s.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.15 no.3
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• pp.97-109
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• 2010

This study analyzed stratification and destratification processes in the Kangjin Bay (KB), South Sea, Korea, driven by the Nam Gang Dam water discharge based on numerical modeling experiments. Model performances were evaluated in terms of skill scores for elevation, velocity, temperature and salinity, with scores mostly exceeding 90%. The models reproduced the tidal current, density-driven and wind-driven current. The stratification by fresh water input and destratification by the wind mixing was assessed in terms of the characteristic Richardson number (Ri) in that Ri increased from 0 to 7~20 during the Dam water discharge period, while vertical mixing and destratification followed by the typhoon passage showed Ri, 0 to 2.

• The Bulletin of The Korean Astronomical Society
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• v.42 no.2
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• pp.70.3-70.3
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• 2017

맑은 날에도 엷은 상층운이나 난류의 방해로 관측 품질이 저해되는 등 천문 분야는 대기환경에 민감하나, 하층 대기 상태에 비중을 두는 동네예보만으로는 천문 분야의 기상정보에 대한 수요를 충족하기에는 한계가 있다. 이에 천문 관측 환경에 보다 특화된 별밤예보를 개발하여 천체 관측 가능성과 천문 관측 자료의 품질을 좌우하는 대기상태를 UM 국지모델 생산자료를 바탕으로 예보하고자 한다. 예보 요소는 하늘상태(운량), 시상(seeing), 투명도, 암도(darkness) 및 대기청명지수, 풍속, 기온, 습도이다. 대기청명지수는 일반인이 관찰하기 좋은지 여부를 한 눈에 알 수 있게 운량과 투명도, 암도를 종합한 지수로 10~100까지 10단계로 제공할 계획이다. 하늘상태와 풍속, 기온, 습도는 $5{\times}5km$격자마다 제공되는 기상청 동네예보에서 천문대와 가장 가까운 격자의 예보치를 추출하였다. 시상은 대기의 난류 정도에 좌우된다. 그러나 충북의 고층기상 관측자료가 없어서, 시상 예보식을 만들기 위해 UM 국지모델에서 제공하는 각 등압면의 기온과 바람벡터로부터 정적 안정도(온위 경도)와 연직 바람시어를 유도한 뒤, 다중회귀분석으로 시상 예보식을 구하였다. 또한 대기청명지수는 청주기상지청에서 관측한 운량과 밤하늘 밝기 자료를 종속변수, 별의 개수를 독립변수로 하는 다중회귀예측식을 구하였다.

• Proceedings of the KGS Conference
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• 2003.11a
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• pp.49-53
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• 2003

기후에 대한 인간의 체감 정도는 "춥다", "덥다"의 정도를 구분하지만 이것이 반드시 기온과 일치하는 것은 아니다. 즉, 습도가 높을 때는 기온이 높지 않아도 더위를 느끼고, 강한 바람이 불 때는 기온이 낮지 않아도 추위를 느낄 수 있다. 국내의 생리기후에 대한 연구는 불쾌지수, apparent temperature, heat index, 윈드칠 지수 등과 같이 지역의 특성을 고려하지 않은 절대적 기준에 의한 지수가 대부분이다.(이와 전, 1982; 윤과 봉, 1987; 최광용 외, 2002.). (중략)

• Journal of the Korean Association of Geographic Information Studies
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• v.16 no.2
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• pp.16-29
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• 2013

The purpose of this study is to evaluate air ventilation using wind patterns of MetPhoMod program at nighttime focused on Changwon-si, Gyeongsangnam-do. Evaluation indices of air ventilation are wind resistant and retention used by results of each wind speed and diversity. The results are as follows. Vulnerable areas of air ventilation are Bonglim-dong, Bansong-dong, Yongji-dong and so on. In high-rise apartment, commercial area and single residential area of Yongji-dong, Sangnam-dong and Sapa-dong, wind is stagnated by high buildings. Therefore, these areas should construct urban spaces to circulate the wind. And to inflow persistingly the fresh wind generated in a rural area, we think that the construction of wind corridor is suggested by development plan and policy wind corridor.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.4
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• pp.35-45
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• 2011

The purpose of this study is visualizing climate change contents from Weather Research and Forecasting model and providing useful tool to anyone who want to use them for communication and actual movement. As a results, we have built a process and user interface for publishing Arrow KML, BWS KML, and DI KML. Arrow KML provide wind rose service and wind attribute information for each arrow. BWS KML provide a wind power index and DI KML provide a thermal comfort. All KML contents are more reliable because those are visualized from the scientifically verified climate change prediction model. Further study will focus on searching for climate change contents mining and useful contents design for wide range of climate change mitigation/adaptation activity.

• Journal of the Korean Geographical Society
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• v.37 no.3
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• pp.237-246
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• 2002

This study classified wintertime bioclimatic zones of South Korea based on daytime and nighttime distribution of wind chill index calculated from climate data during the coldest month for latest 30 years (1971- 2000). The results show that the winter daytime and nighttime wind chill index were influenced by climatic factors such as elevation, land-sea breeze, topology, and sea currents etc. as well as climatic components such as temperature, wind speed, and sunshine, so that South Korea was divided into five bioclimatic zones; Cool day- cold night zone, Keen day- Cold night zone, Keen day-Very Cold night zone, Cold day and night zone, and Cold day-Extremely Cold night zone. Especially, coasts and island areas, except for south coast of Korea, shows Keen bioclimatic response during daytime and Very Cold bioclimatic response during nighttime. This indicates that coasts and island areas, except for south coast of Korea are affected by moonson and land-sea breeze. In addition, highly elevated Daegwallyeong shows Cold bioclimatic response during daytime and Extremely Cold during nighttime due to the influence of adiabatic temperature lapse rate and monsoon. This study offers basic data necessary to make decisions concerning insulation such as clothing and architect etc. by classifying winter bioclimatic zones of South Korea based on various daytime and nighttime distribution of wind chill.

• Journal of the Korean Geographical Society
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• v.42 no.5
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• pp.761-768
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• 2007

Humans have been searching for more comfortable places for centuries. The comfort concept which is related with vitality in Pungsu is closest to science. The comfort concept was introduced as being based upon measurable human physiological and psychological reactions. Two classification nomograms, the comfort index and the wind effect index were identified. The Pungsu concept can be applied in America, and one of them is North Cemetery located in the town of Hampton in northeastern Connecticut not far from Storrs campus, the University of Connecticut. The human reaction to comfort not only physiologically but also individually is various in various climate region. It is important to search for more comfortable places or to make up for less comfortable places with Pungsu as the adaptive strategy for the comfort.

• Journal of the Korean Society for information Management
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• v.31 no.3
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• pp.153-179
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• 2014

This study explores the characteristics of centrality measures for analyzing researchers' impact and structural positions in research collaboration networks. We investigate four binary network centrality measures (degree centrality, closeness centrality, betweenness centrality, and PageRank), and seven existing weighted network centrality measures (triangle betweenness centrality, mean association, weighted PageRank, collaboration h-index, collaboration hs-index, complex degree centrality, and c-index) for research collaboration networks. And we propose SSR, which is a new weighted centrality measure for collaboration networks. Using research collaboration data from three different research domains including architecture, library and information science, and marketing, the above twelve centrality measures are calculated and compared each other. Results indicate that the weighted network centrality measures are needed to consider collaboration strength as well as collaboration range in research collaboration networks. We also recommend that when considering both collaboration strength and range, it is appropriate to apply triangle betweenness centrality and SSR to investigate global centrality and local centrality in collaboration networks.

• Journal of the Korean earth science society
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• v.30 no.7
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• pp.845-854
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• 2009

To examine the wind energy potential of North Korea, climatological wind map was constructed using the 30-year hourly observations of wind speed and direction at 27 meteorological stations. This examination was based on the Weibull model, which represents the probability density distribution of wind speed. It was found that overall, high terrain(Geama Gowon) in the central-northern part and south-west coast (Hwanghae-do) of North Korea have the annual average wind speed which exceeds 4 m/s at 50 m altitude above ground. The wind speed >5 m/s is more persistent in spring, but less in summer. Amongst the meteorological stations, Changjin and Yangdok show the most persistent wind speed in time and strength.