• 제목/요약/키워드: warming

검색결과 2,727건 처리시간 0.031초

기후변화에 따른 기온상승이 한반도 동남지역 국지 기상장과 오존 분포에 미치는 영향에 관한 수치모의 (Numerical Study on the Impact of Regional Warming on the Meterological Field and Ozone Concentration over the South-Eastern Part of the Korean Peninsula)

  • 정여민;이화운;이순환;최현정;전원배
    • 한국환경과학회지
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    • 제19권12호
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    • pp.1431-1445
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    • 2010
  • In order to clarify the impact of regional warming on the meteorological field and air quality over southeastern part of Korean Peninsula, several numerical experiment were carried out. Numerical models used in this study are WRF for the estimate the meteorological elements and CMAQ for assessment of ozone concentration. According to the global warming impact, initial air temperature were changed and its warming rate reach at 2 degree which was based on the global warming scenarios provided by IPCC. The experiments considering the global warming at initial stage were presented as case T_UP. Air temperature over inland area during night time for case T_UP is higher than that for Base case. During time since the higher temperature over inland area is maintained during daytime more intensified sea breeze should be induced and also decrease the air temperature in vicinity of coast area. In case of T_UP, high level concentrations ozone distribution area was narrowed and their disappearance were faster after 1800LST. As a results, wind and temperature fields due to the global warming at initial stage mainly results in the pattern of ozone concentration and its temporal variation at South-Eastern Part of the Korean Peninsula.

한국, 일본, 미국 중등학교 과학 교과서에 나타난 지구온난화 교육 내용에 관한 연구 (A Study on Global Warming Education Contents in Science Textbook of the Korea, Japan and U.S.A.)

  • 정윤정;최돈형;조성화
    • 한국환경교육학회지:환경교육
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    • 제23권3호
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    • pp.50-61
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    • 2010
  • As the influence of mankind's actions grows on the earth's climate, the necessity of climate change education is increasing everyday. Therefore, this study will discuss desirable courses about climate changes education that can be used throughout the world. It is meaningful to try to compare the contents and scope of earth global warming education courses of different nations. where education and a research about earth global warming occur simlutaneously. This is key because global warming is not just a national issue, but an international issue. Therefore this study need to understand the status of environmental education is over the world to devise an improvement plan help to solve the problem of climate change on an international level. Therefore, this study compared, the global warming educational contents which appeared in Korean textbooks to Japanese and American textbooks, and analyzed commonalities and differences of each. Also, we will discuss desirable global warming educational instructional strategies. This study analyzed the present situation of nations by looking at common points and differences using an analysis form. Even though the researchers of an each nation analyzed the teaching material through common analysis forms, this study utilized a common analysis method with a colleague researcher regarding environmental education, environment, environmental science to increase the validity of the study in each nation. Also the difference and similarities were aggregated as This study collected the analysis results of each nation. The researchers utilized the results of the analyses to engage in repeated discussion and the sharing of results.

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우리나라의 기온상승-도시효과인가 지구온난화인가 (Urbanization Effect on the Observed Warming in Korea during the Recent Half Century)

  • 윤진일
    • 한국농림기상학회지
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    • 제4권1호
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    • pp.58-63
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    • 2002
  • 1951-1980 평년기온 대비 1971-2000 평년기온 상승을 남한지역 14개 관측소 소재 시군의 1966년 대비 1990년의 인구증가 자연대수값에 회귀시켜 통계적으로 유의한 관계식을 얻었다. 이 관계식을 이용하여 도시화에 따른 승온효과를 제거할 경우, 순수한 지구 온난화 효과는 12월부터 4월 사이의 한후기에만 인정되며, 나머지 계절에는 나타나지 않았다. 남한지역의 한후기 일평균기온은 지구온난화에 의해 최대 0.6$^{\circ}C$까지 상승하였으며 일최저기온보다 일최고기온 상승폭이 컸다. 도시화에 따른 승온효과는 최대 0.3$^{\circ}C$에서 0.5$^{\circ}C$로 연 중(4월 제외) 고르게 나타났지만, 주로 일최저기온의 상승을 주도하였고 일최고기온 상승에는 거의 영향이 없었다.

지구시스템 모형을 이용한 21세기 동중국해와 남해의 수온과 일차생산 변화 평가 (Assessment of Changes in Temperature and Primary Production over the East China Sea and South Sea during the 21st Century using an Earth System Model)

  • 박영규;최상화;김선동;김철호
    • Ocean and Polar Research
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    • 제34권2호
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    • pp.229-237
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    • 2012
  • Using results from an Earth System model, we investigated change in primary production in the East China Sea, under a global warming scenario. As global warming progresses, the vertical stratification of water becomes stronger, and nutrient supply from the lower part to the upper part is reduced. Consequently, so is the primary production. In addition to the warming trend, there is strong decadal to interdecadal scale variability, and it takes a few decades before the warming trend surpasses natural variability. Thus, it would be very hard to investigate the global warming trend using data of several years' length.

Thermal Burn Injury from a Forced-Air Warming Device in an Anesthetized Dog with Peripheral Hypoperfusion

  • Lee, Sungin;Lee, Aeri;Lee, Maro;Kim, Wan Hee
    • 한국임상수의학회지
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    • 제37권6호
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    • pp.331-335
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    • 2020
  • A 13-year-old female Poodle presented with gallbladder rupture caused by a mucocele and hypoperfusion. The animal had a thermal burn injury caused by a forced-air warming device used for hypothermia during surgery. This could be attributed to two causes. First, the forced-air warming device was used with direct hosing, without attachment to an air blanket, and the heat was concentrated in a single area. Second, perioperative peripheral hypoperfusion hampered heat dissipation and increased the susceptibility to a burn injury. These findings suggest that an air blanket should be used with a forced-air warming device according to the manufacturer's instructions. Furthermore, patients with peripheral hypoperfusion are at a higher risk of burn injuries and require close monitoring.

책임윤리학에 기초한 지구온난화 관련 초등 환경교육 교재 개발 - 초등학교 5, 6학년을 중심으로 - (The Development of the Elementary Environmental Education Textbook Relevant to Global Warming based on Responsibility Ethics - Focused on 5th, 6th Grade Students -)

  • 정하나;지준호;이상원
    • 한국환경교육학회지:환경교육
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    • 제22권3호
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    • pp.31-48
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    • 2009
  • The purpose of this study is to develop the elementary environmental textbook relevant to global warming based on responsibility ethics. To achieve the purpose, concrete study processes are as follows. First, the theory of responsibility ethics of Jonas was analyzed. Second, contents relevant to global warm ing on textbooks and guide books in the 7th elementary curriculum was analyzed through reference study. Third, the environmental textbook relevant to global warming for 5th and 6th grade in the elementary school was developed which was based on responsibility. The results of this study are as follows. First, responsibility ethics of Jonas has a lot of merit if it is applied to environment education. Second, according to the analysis into textbooks and guide books in the 7th elementary curriculum, the contents concerning global warming are very poor in both quantity and quality. Third, the elementary environmental textbook relevant to global warming for 5th and 6th grade students was developed. This textbook based on responsibility ethics will be expected to be efficient on the learning compared with subsidiary textbook in use.

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High Performance of Temperature Gradient Chamber Newly Built for Studying Global Warming Effect on a Plant Population

  • Lee, Jae-Seok;Tetsuyuki Usami;Takehisa Oikawa;Lee, Ho-Joon
    • The Korean Journal of Ecology
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    • 제23권4호
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    • pp.293-298
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    • 2000
  • To study the effect of global warming on the growth of plants and plant populations throughout their life cycle under a field-like condition, we constructed a Temperature Gradient Chamber (TGC) in Tsukuba, Japan. The chamber had slender shape : 30 m long. 3 m wide, and 2.5 m high. That satisfactory performance was confirmed by a test throughout all seasons in 1998: the projected global warming condition in the near future was simulated. That is, independent of a great daily or seasonal change in ambient meteorological conditions, air temperatures at the air outlet were warmed 5$^{\circ}C$ higher than those at the ambient (the annual mean was 14.3$^{\circ}C$) with precision of ${\pm}$0.2$^{\circ}C$ (the annual means were 19.2$^{\circ}C$) with a rising rate of approximately 1$^{\circ}C$ every 5 m. This chamber will enable us to study the effects of global warming on growth of plants and plant populations because their abilities to control air temperature are excellent. TGC is expected that it would be utilized for studying the effect of global warming on plant growth under natural weather conditions.

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공기가온요법이 복강경 담낭절제술 환자의 체온, 전율 및 통증에 미치는 효과 (Effects of Forced Air Warming on Body Temperature, Shivering and Pain in Laparoscopic Cholecystectomy Patients)

  • 박성주;김숙영
    • 기본간호학회지
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    • 제22권3호
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    • pp.287-296
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    • 2015
  • Purpose: The purpose of this study was to examine the effects of forced air warming on intraoperative and postoperative body temperature, postoperative shivering and pain in patients undergoing laparoscopic cholecystectomy. Methods: A quasi-experimental design with nonequivalent control group was utilized. Fifty eight patients scheduled for laparoscopic cholecystectomy were recruited and assigned to the experimental group (n=29) or control group (n=29). For the experimental group, forced air warming was applied from right after induction and up to one hour after surgery. Body temperature, shivering score and pain score were measured in both groups at 15 minute intervals. Data were collected from September, 2013 to April, 2014. Data were analyzed using t-test, Bonferroni test and repeated measures ANOVA. Results: The experimental group showed higher body temperature than the control group during surgery. After surgery the experimental group showed higher body temperature, lower shivering and less pain compared to the control group. Conclusion: Results show that forced air warming is effective in enhancing body temperature and reducing shivering and pain. Therefore, forced air warming is recommended as an operative nursing intervention.

온난화 처리가 신갈나무(Quercus mongolica)와 졸참나무(Q. serrate)의 종자발아와 생장에 미치는 영향 (The Effects of Experimental Warming on Seed Germination and Growth of Two Oak Species (Quercus mongolica and Q. serrata))

  • 박성애;김태규;심규영;공학양;양병국;서상욱;이창석
    • 생태와환경
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    • 제52권3호
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    • pp.210-220
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    • 2019
  • 본 연구는 기온상승 강도에 따른 우리나라 주요 참나무류의 종자 발아와 초기생장에 미치는 영향을 파악하기 위해 수행되었다. 신갈나무와 졸참나무를 대상으로 온도구배온실을 이용하여 대조구, 중간 강도 온난화 처리구($+1.7^{\circ}C$) 및 강한 강도 온난화 처리구($+3.2^{\circ}C$)를 준비하여 재배실험을 실시하였다. 그 결과, 발아반응과 초기생장 반응은 기온상승 강도 및 수종에 따라 차이를 보였다. 중간 강도의 온난화 환경은 두 종의 발아반응을 촉진하고, 생장량(묘고, 근원경)과 생물량(잎, 줄기, 뿌리의 건중량 및 총 생물량)을 증가시켜, 초기정착에 다소 유리할 수 있을 것으로 판단된다. 그러나 Tm에서 두 종 모두 대조구보다 낮은 RMR과 높은 H/D율을 나타내, 장기적으로는 생장에 불리하게 작용할 수 있을 것임을 암시한다. 강한 강도의 온난화 환경은 신갈나무와 졸참나무의 발아반응을 촉진시켰으나, 생육기간 종료 시점의 총 생물량은 대조구보다 유의하게 낮았다. 뿌리 생장은 대조구보다 크게 저하되었고, 이로 인하여 RMR은 낮고 S/R율은 높게 나타났다. 이러한 결과는 강한 강도의 온난한 환경이 봄철에는 발아시기를 앞당겨 생장기간을 증가시켰지만, 여름철에는 임계치 이상의 높은 온도가 생장에 스트레스요인으로 작용하는데 기인한 것으로 판단된다. 식물의 생장은 온난화 처리기간, 토양수분, 광환경 등의 환경요인에 따라 다를 수 있으므로, 온난화에 의한 영향을 정확하게 판단하기 위해서는 다른 환경인자에 대한 모니터링과 장기간에 걸친 추가 연구가 필요할 것으로 판단되었다. 기온상승에 대한 두 식물의 반응을 비교하면, 발아 반응에서 졸참나무가 신갈나무보다 기온상승에 따른 발아율 상승이 높게 반응하였고, 생물량 분배반응에서 신갈나무가 졸참나무보다 민감하게 반응하는 차이를 보였다. 이는 자연에서 양 식물의 공간 분포가 가져오는 미기후 차이에서 비롯된 것으로 판단된다.

한국의 주요 대도시에 대한 일 최고 및 최저 기온의 장기변동 경향과 건강에 미치는 영향 전망 (Long-term Trends of Daily Maximum and Minimum Temperatures for the Major Cities of South Korea and their Implications on Human Health)

  • 최병철;김지영;이대근
    • 대기
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    • 제17권2호
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    • pp.171-183
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    • 2007
  • Trends of daily maximum and minimum temperatures in major cities of South Korea (Seoul, Busan, Incheon, Daegu, and Ulsan) during the past 40 years (1961-2000) were investigated. Temperature records for the Chupungryeong station were compared with those of the large cities because of the rural environment of the station. There were distinct warming trends at all stations, although the warming rates depend on each station's local climate and environment. The warming rates in Korea are much greater than the global warming trends, by a factor of 3 to 4. The most increasing rate in daily maximum temperature was at Busan with $0.43^{\circ}C$ per decade, the most increasing rate in daily minimum temperature was at Daegu with $0.44^{\circ}C$ per decade. In general, the warming trends of the cities were most pronounced in winter season with an increasing rate of $0.5^{\circ}C$/decade at least. Diurnal temperature range shows positive or negative trends according to the regional climate and environmental change. The frequency distribution of the daily temperatures for the past 40 years at Seoul and Chupungryeong shows that there have been reductions in cold day frequencies at both stations. The results imply that the impacts on human health might be positive in winter and adverse in summer if the regional warming scenario by the current regional climate model reflects future climate change in Korea.