• 제목/요약/키워드: Urban climate change

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기후변화 대응시대의 도시개발방향과 시사점 (The Direction and Implication of Urban Development in the Age of Response Climate Change)

  • 오은열
    • 산업융합연구
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    • 제17권1호
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    • pp.33-39
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    • 2019
  • 본 연구에서는 기후변화에 대응하는 도시개발의 실천적 실행을 위해서 기후위험요인 측면과 환경적인 측면으로 대별하여 도시개발 방향과 시사점을 제시하는데 목적을 두었다. 연구방법으로는 정성적인 자료조사와 분석을 통해 이루어졌다. 연구결과, 기후위험요인에 따른 도시개발방향은 도시계획수립시 기후변화 영향을 통합적으로 고려할 수 있는 지역별 부문별 영향 및 취약성 분석을 실시함으로써 자연재난에 대한 피해예방 시스템 구축과 자연재해 위험도 분석을 실시해 도시개발을 할 수 있는 여건 마련의 중요성을 강조하였다. 환경적측면의 도시개발방향은 친환경적인 도시개발을 위해서는 도시계획수립시 대중교통지향적인 도시개발(TOD, Transit­oriented Development)의 추진이 지속가능하고 실행적인 도시개발을 실현하는데 그 필요성을 제시하였다. 향후 연구방향은 보다 더 정량적이고 실증적인 규명을 위한 연구가 보완되어야 할 것이다.

SLEUTH 모델을 이용한 청주시 토지이용변화 예측 (Land Use Change Prediction of Cheongju using SLEUTH Model)

  • 박인혁;하성룡
    • 환경영향평가
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    • 제22권1호
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    • pp.109-116
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    • 2013
  • By IPCC climate change scenario, the socioeconomic actions such as the land use change are closely associated with the climate change as an up zoning action of urban development to increase green gas emission to atmosphere. Prediction of the land use change with rational quality can provide better data for understanding of the climate change in future. This study aims to predict land use change of Cheongju in future and SLEUTH model is used to anticipate with the status quo condition, in which the pattern of land use change in future follows the chronical tendency of land use change during last 25 years. From 40 years prediction since 2000 year, the area urbanized compared with 2000 year increases up to 87.8% in 2040 year. The ratios of the area urbanized from agricultural area and natural area in 2040 are decreased to 53.1% and 15.3%, respectively.

도시녹지 내 주요 식물상의 개엽시기 및 잎의 성장 특성 비교 (Comparing a Perspective on the Leaf Burst Timing and Leaf Growth Performance of Major Plants observed in Urban Forests)

  • 장갑수
    • 한국환경복원기술학회지
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    • 제15권2호
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    • pp.127-136
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    • 2012
  • Global climate change and urban heat island have been the main factors which changed leaf burst timing and leaf growth performance in urban forests. Therefore, the ecosystem in urban forests were modified and the types and composition of wildlives, living in the urban forests, were desperately changed due to the urban heat island. This study was done to identify phenological phenomena appeared in urban forests due to the urban climate change by comparing the morphological changes of leaves due to the change of temperature in Spring. The study focused on nine urban forests distributed in Daegu city, where weekly temperature and the morphological changes of the plants were mainly observed. Urban forests had different temperature depending on where each was located in the urban area. The difference of temperature in forests in and outside the urban area was verified by SPSS (Statistical Package for the Social Sciences), which divided the urban forests into about three groups; the one located outside the city, another group located in the middle of the city, and the other located close to the outside forests. The forests located in the middle of the city were showing the earlier leaf burst timing and leaf growth performance, while forests, distributed outside the city, were showing relatively late leaf burst timing and leaf performance.

기후변화가 반영된 도시 열환경 시뮬레이션 모델의 연구 (A Study on the Urban Heat Simulation Model Incorporating the Climate Changes)

  • 강종화;김완수;윤정임;이주성;김석철
    • 한국대기환경학회지
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    • 제34권5호
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    • pp.697-707
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    • 2018
  • A fast running model comprising the climate change effects is proposed for urban heat environment simulations so as to be used in urban heat island studies and/or the urban planning practices. By combining Hot City Model, a high resolution urban temperature prediction model utilizing the Lagrangian particle tracing technique, and the numerical weather simulation data which are constructed up to year of 2100 under the climate change scenarios, an efficient model is constructed for simulating the future urban heat environments. It is applicable to whole city as well as to a small block area of an urban region, with the computation time being relatively short, requiring the practically manageable amount of the computational resources. The heat environments of the entire metropolitan Seoul area in South Korea are investigated with the aid of the model for the present time and for the future. The results showed that the urban temperature gradually increase up to a significant level in the future. The possible effects of green roofs on the buildings are also studied, and we observe that green roofs don't lower the urban temperature efficiently while making the temperature fields become more homogeneous.

기후변화시나리오와 비정상성 빈도분석을 이용한 도시유형별 목표연도 설계강우량 제시 및 치수안전도 변화 전망 (Predicting the Design Rainfall for Target Years and Flood Safety Changes by City Type using Non-Stationary Frequency Analysis and Climate Change Scenario)

  • 정세진;강동호;김병식
    • 한국환경과학회지
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    • 제29권9호
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    • pp.871-883
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    • 2020
  • Due to recent heavy rain events, there are increasing demands for adapting infrastructure design, including drainage facilities in urban basins. Therefore, a clear definition of urban rainfall must be provided; however, currently, such a definition is unavailable. In this study, urban rainfall is defined as a rainfall event that has the potential to cause water-related disasters such as floods and landslides in urban areas. Moreover, based on design rainfall, these disasters are defined as those that causes excess design flooding due to certain rainfall events. These heavy rain scenarios require that the design of various urban rainfall facilities consider design rainfall in the target years of their life cycle, for disaster prevention. The average frequency of heavy rain in each region, inland and coastal areas, was analyzed through a frequency analysis of the highest annual rainfall in the past year. The potential change in future rainfall intensity changes the service level of the infrastructure related to hand-to-hand construction; therefore, the target year and design rainfall considering the climate change premium were presented. Finally, the change in dimensional safety according to the RCP8.5 climate change scenario was predicted.

기후변화 연구에 관한 한국기상학회 60년사 (60 Years of Korean Meteorological Society on Climate Change)

  • 안중배;변영화;차동현
    • 대기
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    • 제33권2호
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    • pp.155-171
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    • 2023
  • This paper aims to examine from various perspectives how domestic research studies and projects related to climate change have been conducted to mark the 60th anniversary of the Korean Meteorological Society (KMS). The 『50-year History of the Korean Meteorological Society』, published more than a decade ago, has never dealt with the history of development of individual fields of meteorology such as climate change. Therefore, it is of significance to look at the history of research activities and studies achieved by KMS members in the area of climate change over the past 60 years. The research on climate change in KMS is classified by era from the beginning to the latest and the contents are examined by major research projects at that time. During the past 60 years, climatological research in KMS has been mainly focused on general climate, synoptic climate, and applied climate (urban climate) until the 2000s. However, since the 1990s, climate change has become an important area for climate research. The 2000s are the beginning era of climate change research, since the major projects and researches for climate change has begun in the period. The 2010s can be a time when climate change prediction and monitoring are expanded and refined to meet the rapidly increasing demands for climate information from a wide range of areas. We concluded that the development of the research capabilities of the society over the past 60 years, in particular in the past two decades, in the field of climate change research is remarkable.

SENSITIVITY OF THE KEUM RIVER BASIN TO CLIMATE CHANGE

  • Kim, Young-Oh;Seo, Yong-Won;Lee, Seung-Hyun;Lee, Dong-Ryul
    • Water Engineering Research
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    • 제1권4호
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    • pp.267-277
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    • 2000
  • This study reports an examination of the sensitivity of water resources in the Keum River basin to climate change. Assuming a doubling in $CO_2$ concentrations, a cooperative study provided four climate change scenarios for this study, which have been translated into temperature and precipitation scenarios on a basin scale. The study utilized these temperature and precipitation data for each climate change scenario as inputs to the NWS-PC model to generate the corresponding streamflow scenario over the Keum River basin. A reservoir simulation model for the Dae-Chung Dam in the Keum River basin has been developed with an object-oriented simulation environment, STELLA. For each streamflow scenario, the performance of the reservoir was assessed in terms of reliability, resiliency, and vulnerability. Although the simulation results are heavily dependent on the choice of the climate change scenarios, the following conclusions can be clearly concluded: (1) the future streamflow over the Dae-Chung Dam tends to decease during the dry period, which seriously increases competitive water use issues and (2) flood control issues predominate under the $2CO_2$-High case.

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도시 확장에 따른 온열환경의 변화 (Change of Thermal Environment with Urban Expansion)

  • 김상진
    • 한국태양에너지학회 논문집
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    • 제27권2호
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    • pp.95-101
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    • 2007
  • The surface changes due to urban expansion and the increase of artificial heat releases have brought significant climate changes such as heat island phenomenon in urban area. Furthermore, these changes also have brought serious problems such as air temperature increase, wind changes, and air pollution in urban area. Comprehensive analytical technologies considering various effects are required to analyse complicated mechanism of climate changes, and review the efficient measures. In this research, the effect of the urban expansion in Tokyo and Bangkok area on urban environment will be discussed. By using CFD, urban development and the mechanism of global warming and wind change are studied in those two cities. As a result of numerical research, the surface changes of city could bring the environmental changes in urban area.

기후변화 적응을 위한 계획기법 및 도시계획 전략 연구 (Urban Planning Strategy and Technique for Climate Change Adaptation)

  • 이성희;김정곤
    • 토지주택연구
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    • 제6권4호
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    • pp.153-164
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    • 2015
  • 본 연구는 기후변화에 적응하기 위한 도시계획 측면의 계획기법을 도출하고 전략을 제시하는 것을 목적으로 한다. 이를 위해 본 연구는 다음과 같은 4단계에 걸쳐 연구를 진행하였다; 첫째, 기후변화 적응과 관련된 선행연구를 통하여 이론상에서 제시되고 있는 계획목표와 계획기법을 도출하였다. 둘째, 기후변화 적응을 위한 도시계획기법의 적용실태를 파악하기 위한 사례조사 및 분석을 실시하였다. 셋째, 앞서 두 단계에 걸쳐 도출된 계획기법에 대하여 여러 차례에 걸친 실무진 및 전문가 브레인스토밍을 진행하여 최종 계획기법을 도출하였으며, 적용가능한 공간위계와 기상재해와의 연관성을 검토하였다. 마지막으로 이를 바탕으로 기후변화 적응 도시의 부문별 전략을 제시하였다. 본 연구는 정책적 차원에 머무르고 있던 기존의 연구 단계에서 벗어나 실제 적용가능한 계획기법을 모색하였다는 데에 의의가 있으며, 연구의 결과는 향후 계획 수립 시 기초자료로 활용될 수 있다.

기후변화에 따른 도시 녹지 꽃가루 알레르기 지수 변화 분석 - 서울어린이대공원을 대상으로 - (Assessment of Pollen Allergenicity Index Under Climate Change in the Seoul Children's Grand Park: Present, and Future)

  • 황예린;김수경;최재연;박찬
    • 환경영향평가
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    • 제33권3호
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    • pp.99-115
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    • 2024
  • 도시 녹지는 시민들에게 다양한 긍정적인 효과를 주지만, 생태계디스서비스(Ecosystem Disservice)를 발생시킬 수 있다. 생태계디스서비스는 국제적으로 논의되고 있지만 국내에서는 아직 논의가 미흡하다. 특히, 꽃가루 알레르기는 대표적인 생태계디스서비스로 논의되고 있다. 최근 연구에서는 기후변화에 따라 꽃가루의 부정적인 피해가 증가할 것으로 예측되고 있다. 이런 맥락에서 본 연구는 생태계디스서비스에 대해 논의하는 첫 단계로서 현재 도시 녹지의 꽃가루 알레르기 유발성을 진단하고 기후변화 시나리오상에서 꽃가루 알레르기 유발성의 변화를 확인하고자 한다. 이를 위해, 꽃가루 알레르기 유발성 평가를 위해 개발된 IUGZA (Urban Green Zone Allergenicity Index)를 사용하여 서울어린이대공원을 대상으로 꽃가루 알레르기 유발성을 평가하였다. 현재 서울어린이대공원의 IUGZA는 선행연구에서 제시된 임계값보다 높아 알레르기로 인한 피해가 발생할 수 있는 수준으로 확인되었다. 또한, 기후변화 시나리오에 따라 꽃가루 알레르기 유발성은 점차 높아지는 것으로 확인되었다. 현재와 기후변화가 가장 심한 시나리오를 비교한 결과 현재에는 알레르기 피해 유발 정도가 낮은 수종이 기후변화가 심해지면 높아질 가능성을 확인하였다. 따라서 본연구에서 도출된 결과는 기후변화에 따라 꽃가루로 인한 사회적 피해가 증가할 수 있음을 시사하며 향후 식재 선정 및 관리에 고려가 필요할 만한 수종을 제시하였다는 것에 의의가 있다.