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Effect of an Urban Thermal Environment on the Air Quality in Two Cities
이귀옥,정우식,Hwa Woon Lee,Hyun-ju Lee,박종길 한국대기환경학회 2011 Asian Journal of Atmospheric Environment (AJAE) Vol.5 No.1
In this study, the effects of an urban thermal environment on air quality were investigated using hourly surface weather observation data and air quality data over six summers from 2000 to 2005 in two cities on the Korean Peninsula. One, the city of Daegu, is representative of basin topography and the other, the city of Busan, represents a coastal area. It is known that the characteristics of an urban thermal environment are represented as an “urban heat island”. Here, we focus on the nighttime urban thermal environment, which is called a “tropical night”, during the summer. On tropical nights in Busan, the temperature and cloud cover levels were higher than on non-tropical nights. Wind speed did not appear to make a difference even on a tropical night. However, the frequency of southwestern winds from the sea was higher during tropical nights. The prevailing southwest winds in all areas meant an inflow of air from the sea. So at most of the air quality stations, the ozone concentration during tropical nights was lower than during non-tropical nights. In Daegu, the tropical nights had higher temperatures and cloud covers. Despite these higher temperatures,the ozone concentration during the tropical nights was lower than that on non-tropical nights at most of the air quality stations. This feature was caused by low irradiance, which in turn caused an increased cloud cover. Wind speed was stronger during the tropical nights and dispersed the air pollutants. These meteorological characteristics of the tropical nights reduced ozone concentrations in the Daegu Basin.
부산지역에서의 기상 수치모의 자료를 이용한 건축물 에너지 분석
이귀옥 ( Kwi Ok Lee ),김민준 ( Min Jun Kim ),이강열 ( Kang Yeol Lee ),강동배 ( Dong Bae Kang ),박창현 ( Chang Hyoun Park ),이화운 ( Hwa Woon Lee ),정우식 ( Woo Sik Jung ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.3
To estimate the benefit of high-resolution meteorological data for building energy estimation, a building energy analysis has been conducted over Busan metropolitan areas. The heating and cooling load has been calculated at seven observational sites by using temperature, wind and relative humidity data provided by WRF model combined with the inner building data produced by American Society of Heating Refrigeration and Air-conditioning Engineers (ASHRAE). The building energy shows differences 2-3% in winter and 10-30% in summer depending on locations. This result implicates that high spatiotemporal resolution of meteorological model data is significantly important for building energy analysis.
노인들의 여가활동에서 여가몰입이 여가만족도와 생활만족도에 미치는 영향
이귀옥(Kwi Og Lee) 한국호텔외식관광경영학회 2010 호텔경영학연구 Vol.19 No.6
The purpose of this study was to examine the influence of leisure commitment on leisure satisfaction and life satisfaction in the leisure activities of the aged. The data was collected from 147 of the aged who had participated in leisure activities at one of the aged colleges in Gyeong San city. In consequence of factor analysis of leisure commitment, leisure satisfaction, and life satisfaction, 2 factors of cognitive commitment and behavioral commitment, 2 factors of physical·social satisfaction and psychological·educational satisfaction, and 1 factor of life satisfaction respectively were extracted. The results were as follows: 1) Cognitive and behavioral commitment of leisure commitment had significant influence on leisure satisfaction. Cognitive commitment had more influence on leisure satisfaction than behavioral commitment. 2) Cognitive and behavioral commitment of leisure commitment had significant influence on life satisfaction. Behavioral commitment had more influence on life satisfaction than cognitive commitment. 3) Leisure satisfaction had significant influence on life satisfaction.