하절기 도시의 지역별 장 · 단파복사 특성 분석과 해석

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3

The objective of this study is to analyze the characteristic of radiation environment in the urban and rural through the field observation in the summer. The radiation balance was compared through the measurement of the shortwave radiation and long-wave radiation in the urban, sub-urban, and rural. The following conclusion could be obtained from this research. (1) In the results of observation including the rain-day, it was found that the short wave radiance in the urban is lower about 10% than the rural. (2) The upper part of atmosphere layers in the urban area absorb much short wave radiation energies compared with the rural relatively. It can increase the temperature of the upper part of atmosphere layers and the emittance of long wave radiation. (3) The ratio of the downward short wave radiation to the downward long wave radiation was 1.24 for the urban, 1.28 for sub-urban and 1.35 for rural. It can be estimated that the atmosphere condition of the rural is better than that of other areas. (4) The net radiation of the rural was lower that of the urban. It was found that the energy in and outflow of the rural is easier than that of the urban. (5) The temperature variation for the long-wave radiation change of the rural showed more sensitive than that of the urban. It was came from the radiation characteristics of the surrounding environment and can be used as the important index to evaluate the thermal environment characteristic of urban.

하절기 관측을 통한 도시의 지역별 공간녹지분포율에 따른 열환경 특성 연구

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3

The objective of this study is to analyze the characteristic of thermal environment in the summer season by conducting the field observation of temperature, relative humidity, and globe temperature in some parts of the city. Observation point was divided to a densely populated area, a residential area, a green area, a waterfront green area and a suburban district by the distribution ratio of green area. In this study, the correlation between maximum temperature and globe temperature, study on index for intensity of the tropical night and the temperature distribution characteristic of measurement points by the distribution ratio of green area were analyzed. The results of this study are as follows. ① The difference between temperature and globe temperature by the distribution ratio of green area is confirmed. The difference of nighttime is more clearly that of daytime. ② The average temperature and globe temperature of the densely populated area(29.2℃,33.7℃) are higher than that of the waterfront green area(27.9℃,32. 0℃) by 1.3℃ and 1.7℃, respectively. ③ The number of tropical nights has different days of tropical nights by the distribution ratio of green area of 17days for the Daegu weather station, 14days for a densely populated area, 14days for a residential area, 6days for a green area, 2days for a waterfront green area, and 2days for a suburban district. ④ The results of the slope of trend line for the effects of the temperature on globe temperature change and the intercept for the size of the impact of radiant energy gained around by the analysis of the correlation between the maximum temperature and globe temperature can be utilized objective evaluation index of the each point's artificial effects.

하절기 도심과 외곽지의 열특성 비교 관측

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.2009 No.11월

This study is about heat island as one of the urban climate variation factors in urbanized modern society, which compared and observed the thermal characteristics both the downtown location and the outskirt site in summer. The diurnal air temperature range at each point is 12.6℃ in the downtown location and 14.3 ℃ in the outskirt site, so, it was found that the diurnal air temperature range in the outskirt site was l.7 ℃ higher than in the downtown location. There was 20 minutes difference to reach the highest temperature between globe temperature and air temperature in the downtown location, however, the time spent to reach the highest temperature between globe temperature and air temperature in the outskirt site was the same. When we compared the globe temperature between the downtown location and outskirt site, we found that the temperature in the outskirt site was lower than in the downtown location after sunset due to the sudden temperature drops, although the exposed time to insolation in the outskirt site is longer. The average of globe temperature difference on the sample days was 1.1℃, the average of surface temperature difference on the sample days was l.0℃, and the average of air temperature difference on the sample days was 2.0 ℃ Thus, it was found that the average of air temperature difference was higher than the average of globe temperature and the average of surface temperature. The result of this study is that the urban environment factors have more effect on the air temperature difference than globe temperature and surface temperature.

미기상 관측을 통한 하절기 도심과 외곽의 열환경 비교

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2009 한국태양에너지학회 논문집 Vol.29 No.6

This study which is the fundamental work to investigate the property of urban climate compared the property of thermal environment in the downtown location and the outskirt site based on the field observation in the summer. We analysed thermal environment in the downtown location mainly by distributional characteristics during day and night with changes and correlation analysis of the air temperature, the globe temperature and the surface temperature through the simultaneous observation of the property of thermal environment at two places in real time. The summary of finding in this study is as follows. ①It is observed on the day chosen by sample that diurnal air temperature range in the downtown location is 22.3~34.9℃, and diurnal air temperature range in the Outskirt site is 20.0 ~34.3 ℃so, we found that the diurnal air temperature range in the outskirt site is 1.7℃higher than in the downtown location. ②In comparison of the globe temperature after sunset, we found the change of more sudden temperature drops in the outskirt site than in the downtown location. ③It is observed on the days chosen by sample that the average of globe temperature range is 1.1℃, the average of surface temperature range is 1.0 ℃, and air temperature range is 2.0 ℃ thus, the we found that the average of air temperature is 1.0 ℃ higher than globe temperature and the surface temperature. ④After the consideration of air temperature and globe temperature distribution, the highest temperature reaching time of globe temperature is one hour earlier than air temperature in the downtown location, on the other hand, although the highest temperature reaching time of globe temperature in the outskirt sites is one hour later than in the downtown location, the timelag found in the downtown location was not found in the outskirt site.

하절기 잔디면의 복사수지 관측

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.4

This study is to figure out the thermal characteristics of various surface material which compose the city through the observation in the summer. To examine passive cooling effect of building greening, it is arranged four different materials that is natural grass, grass block, concrete slab and artificial grass. The results from this study are as follows; ① Natural grass and grass block show the lower surface temperature because of the structures of leaf can do more thermal dissipation effectively. ② There is little surface temperature between artificial grass and concrete. But there is little big surface temperature difference between natural grass and concrete because of latent heat effect. ③ The concrete can play a role of the tropical nights phenomenon as high heat capacity of concrete compare with other materials. ④ It is nearly same color in artificial grass and natural grass but there is big difference between natural grass and artificial grass at albedo. There is differnet albedo in near infrared ray range. ⑤ The globe temperature is more affected by short wave radiation than long wave radiation.

하절기 도시의 열환경 관측을 통한 지역별 열적쾌적성 비교

정임수(Jung Im-Soo),최동호(Choi Dong-Ho),이부용(Lee Bu-Yong) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11

This study compared the thermal condition of specific places in the city during summer season through field observation. We found out the characteristic thermal condition of city through the simultaneous observation in real time at several observation places. The distributional patterns of air temperature and globe temperature were found out in the observation points, The results of the study on the effect of surrounding greenspace ratio to thermal condition in these observation points are as follows. According to environmental difference of artificial structures and green space in the city, the air temperature and globe temperature in the urban are higher than in the green zone. The average air temperature and the average globe temperature in August in the urban were 1.0℃ higher than any other places. The average globe temperature in the urban was 32.0℃, and the average globe temperature in the rural was 30.9℃. The temperature difference between two places was 1.1℃, and the temperature distribution in the urban was higher than in the rural. The green zone(greenspace ratio above 26%) showed the average air temperature which is 1.2℃ lower than the average air temperature in the urban(greenspace ratio 0%). Therefore, Greenspace ratio works efficiently to control the air temperature increase in the city.

하절기 도시의 장·단파 복사특성 관측

정임수(Jung, Im-Soo),최동호(Choi, Dong-Ho),이부용(Lee, Bu-Yong) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11

The objective of this study is to analyze the characteristic of radiation environment in the urban and rural through the field observation in the summer.The radiation balance was compared through the measurement of the shortwave radiation and long-wave radiation in the urban, sub-urban, andrural. The following conclusion could be obtained from this research.(1) In the results of observation including the rain-day,it was found that the short wave radiance in the urban is lower about 10% than the rural.(2) The upper part of atmosphere layers in the urban area absorb much short wave radiation energies compared with the rural relatively. It can increase the temperature of the upper part of atmosphere layers and the emittance of long wave radiation.(3) The ratio of the downward short wave radiation to the downward long wave radiation was 1.24 for the urban,1.28 for sub-urban and1.35 for rural. It can be estimated that the atmosphere condition of the rural is better than that of other areas.

청소년의 일반긴장 요인이 사이버비행에 미치는 영향 - 스마트폰 의존도의 조절된 매개효과를 중심으로 -

김도선 ( Kim Do Sun ),정임수 ( Jung Im soo ),이창배 ( Lee Chang Bae ) 한국경찰학회 2021 한국경찰학회보 Vol.23 No.4

이 연구는 청소년의 일반긴장 요인과 사이버비행의 관계에서 스마트폰 의존도가 조절된 매개효과로 작용할 수 있는지 검증하기 위한 목적으로 수행되었다. 한국청소년정책연구원의 ‘한국아동청소년패널 2018’의 중학교 1학년 2차년도 자료를 이용하여 분석한 결과, 충동성은 부모긴장과 친구긴장이 사이버비행에 미치는 영향을 감소시키는 부분 매개효과가 있는 것으로 나타났고, 충동성과 사이버비행의 관계에서 스마트폰 의존도의 조절효과 또한 발견되었다. 일반긴장요인과 사이버 비행의 관계에서 스마트폰 의존도의 조절된 매개효과는 부모긴장-충동성-사이버비행의 관계에서는 스마트폰 의존도의 정도와 상관없이 사이버비행에 정(+)의 영향을 미쳤고, 친구긴장-충동성-사이버비행은 스마트폰 의존도가 중간 이상의 정도일 때에만 사이버비행에 정(+)의 영향을 미치는 것으로 확인되었다. 즉, 일반긴장 요인과 사이버비행의 관계에서 스마트폰의존도가 사이버비행을 간접적으로 증가시킨 것으로 이해할 수 있다. 이 연구의 결과를 바탕으로 향후 청소년의 사이버비행에 대한 영향요인 검증을 위한 후속연구, 사이버비행 예방 및 억제를 위한 프로그램에 적용할 수 있는 방안을 논의하였다. The purpose of this study is to verify that dependency on smartphone use can act as a moderated mediating effect in the relationship between general strain and cyber delinquency. The findings of this paper show that impulsiveness has a partial mediating effect that slightly reduces the impact of parental strain and friend strain on cyber delinquency. The moderated mediating effect of dependency on smartphone use on general strain factors and the cyber delinquency, was found to have a positive(+) effect on cyber-delinquency in the relationship of the parent strain-impulse-cyber delinquency. Whereas, only when dependency on smartphone use is moderate or high, it was found to have a positive(+) effect on cyber delinquency in terms of the friend strain-impulse-cyber delinquency. The point to take home here is that dependency on smartphone use can indirectly increase cyber delinquency in the relation of general strain and cyber delinquency. Based on the results of this study, we discussed how it can be applied to programs for subsequent studies and prevention, and suppression of cyber delinquency for the verification of influencing factors for future youth cyber delinquency.