• 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.

• 한국주거학회논문집
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• 제18권4호
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• pp.69-78
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• 2007

This study is to describe the changes of spatial structure of Korean traditional housing in urban context with the following preconditions. Firstly, Chosun Hanyang's urban housing should be classified as it's own type. Secondly, Chosun's traditional housing accomplishes a complete urban housing type in Japanese colonial period through the stream of time. And the purpose of this study is as followings. First is to find out the process of changes of urban housing in urban context from the latter period of Chosun Dynasty to 1960's. Second is to find out the origin of spatial structure of urban house which is being kept throughout the above changes. Third is to find out the unique characteristics of urban house and the fundamental differences with folk houses in province.

• 대한건축학회논문집:계획계
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• 제35권10호
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• pp.83-90
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• 2019

The purpose of the present study is to confirm, through quantitative indices, changes arising with the implementation of urban regeneration projects, with a specific focus on the case of Dongnam-gu, Cheonan, one of the 13 priority rgions in urban regeneration. By utilizing quantitative data including resident population, floating population, revenue, number of small business persons, number of startup companies, and number of licensed buildings, the study confirmed changes in Dongnam-gu and other urban regeneration areas. The study compared monitoring results and implemented project policies to confirm changes within the area as a result of project implementation. Additionally, resident perception toward business districts was surveyed to confirm changes in perception and opinion, and monitoring indices were used to confirm changes as a result of project implementation. Accordingly, the study presented a plan to carry out the assessment of urban regeneration projects, which can be employed as data for conducting future urban regeneration projects. Urban regeneration projects are carried out for the long-term. Therefore, based on monitoring and investigative data, they require constant policy suggestions and periodic monitoring in accordance with changes resulting from project implementation. With regards to the effective range of urban regeneration projects, the study confirmed the possibility of an effect not only in the area of project implementation but also in surrounding areas. However, because the study merely confirms changes in Dongnam-gu, Cheonan, additional research is necessary to ascertain assessment plans suitable to the different types and regional characteristics of urban regeneration projects.

• Journal of Ecology and Environment
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• 제32권3호
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• pp.167-176
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• 2009

Land cover changes associated with urbanization have driven climate change and pollution, which alter properties of ecosystems at local, regional, and continental scales. Thus, the relationships among urban ecological variables such as community composition, structure, health, soil and functioning need to be better understood to restore and improve urban ecosystems. In this study, we discuss urban ecosystem management and research from a futuristic perspective based on analyses of vegetation structure, composition, and successional trends, as well as the chemical properties of soils and the distribution of heat along an urban-rural gradient. Urban thermo-profile analysis using satellite images showed an obvious mitigating effect of vegetation on the Seoul heat island. Community attributes of Quercus mongolica stands reflected the effects of urbanization, such as pronounced increases in disturbance-related and pollution-tolerant species, such as Styrax japonica and Sorbus alnifolia. Retrogressive successional trends were detected in urban sites relative to those in rural sites. Changes in the urban climate and biotic environment have the potential to significantly influence the practice and outcomes of ecological management, restoration and forecasting because of the associated changes in future bio-physical settings. Thus, for management (i.e., creation and restoration) of urban green spaces, forward-thinking perspectives supported by historical information are necessary.

• 한국대기환경학회지
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• 제28권3호
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• pp.261-272
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• 2012

In this study, climate variability was predicted by the Weather Research and Forecasting (WRF) model under two different scenarios (current trends scenario; SC1 and managed scenario; SC2) for future urban growth over the Seoul metropolitan area (SMA). We used the urban growth model, SLEUTH (Slope, Land-use, Excluded, Urban, Transportation, Hill-Shade) to predict the future urban growth in SMA. As a result, the difference of urban ratio between two scenarios was the maximum up to 2.2% during 50 years (2000~2050). Also, the results of SLEUTH like this were adjusted in the Weather Research and Forecasting (WRF) model to analysis the difference of the future climate for the future urbanization effect. By scenarios of urban growth, we knew that the significant differences of surface temperature with a maximum of about 4 K and PBL height with a maximum of about 200 m appeared locally in newly urbanized area. However, wind speeds are not sensitive for the future urban growth in SMA. These results show that we need to consider the future land-use changes or future urban extension in the study for the prediction of future climate changes.

• 대한원격탐사학회지
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• 제39권5_3호
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• pp.921-932
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• 2023

도시 인구집중 및 도시확장에 의한 토지피복 변화는 도시 내 열섬현상과 같은 다양한 환경문제를 유발할 수 있다. 특히 계획적으로 구축되는 신도시의 경우 짧은 기간에 진행되는 급격한 도시화로 인한 도시 기후의 변화를 분석하기에 적절한 연구대상지로 여겨진다. 본 연구에서는 Landsat 위성영상을 활용하여 분당 및 판교 신도시를 대상으로 개발 전후 토지피복 변화와 이에 따른 표면 도시열섬(surface urban heat island, SUHI) 현상의 변화를 비교, 분석하였다. 또한 SUHI 강도에 영향을 끼칠 수 있는 도시구조적 특징들 간 상관분석을 수행하였다. 분석 결과, 신도시 개발이 진행됨에 따른 토지피복의 급격한 변화 및 이에 따른 SUHI 현상의 직접적인 심화를 확인하였다. 본 연구를 통해 각기 다른 도시계획에 의한 SUHI 현상의 차이를 확인하고 열 환경 개선을 위한 입체적인 도시계획의 필요성이 제시될 수 있다.

• 한국지리정보학회지
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• 제21권4호
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• pp.202-217
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• 2018

인간 활동에 의한 도시의 토지이용변화는 도시의 공간구조와 생태계에 영향을 미친다. 토지이용변화 패턴을 파악하고 미래의 토지이용변화를 모의하는 것은 지속가능한 도시 관리를 위해 필요하지만, 토지이용변화의 불확실성과 복잡성으로 인해서 이를 효과적으로 모의하기 어렵다. 셀룰러오토마타 모형은 도시토지이용변화에 널리 사용되는 모형으로, 격자기반의 변화를 모의한다. 하지만, 격자기반의 모의는 실제 토지이용변화 특성을 반영하기 어렵고, 토지이용의 파편화가 나타나는 한계가 있다. 이러한 문제를 보완하기 위해 제작된 객체기반 셀룰러오토마타모형은 토지패치 객체별 변화를 모의한다. 본 연구는 하남시를 대상으로 객체기반 토지이용변화 모형을 제작하여 미래의 토지이용변화를 모의하였다. 제작된 모형의 정확도를 평가하는 성능지수는 24.1%로 평가되었다. 기준시나리오를 적용한 2038년의 토지이용변화 모의결과, 시가지는 16.4% 감소한 반면, 농경지는 9.0% 증가하였고, 초지는 19.3% 증가하였다. 개발시나리오의 경우 시가지는 22.4% 증가하였고, 농경지는 26.1% 감소한 반면, 산림과 초지는 큰 변화가 나타나지 않았다. 보전시나리오의 경우 시가지는 29.5%, 농경지는 8.8%감소하였고, 산림과 초지는 각각 6%, 42.8% 증가하였다. 본 모형은 실제 도시 토지이용변화를 효과적으로 모의하여 공간계획을 위한 의사결정지원도구로 사용될 수 있다.

• 한국ITS학회 논문지
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• 제21권4호
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• pp.96-114
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• 2022

본 연구는 우리나라 도시물류를 대상으로 과거 추세를 분석하고 미래 변화를 전망하여 도시발전에 선제적으로 대응할 수 있는 정책 방향을 제시하였다. 연구 범위는 물류정책기본법에서 제시하는 국가물류기본계획과 지역물류기본계획의 변화를 중심으로 하였다. 연구 진행은 국가물류기본계획을 근간으로 과거부터 현재까지 도시물류와 관련된 정책 변화를 살펴봄과 더불어 장래 예상되는 물류환경 변화에 대응하는 국가의 정책기조를 파악하였다. 그리고 이를 서울시 도시물류기본계획의 내용과 접목시켜 앞으로 도시물류기본계획에서 계속 추진하거나 새롭게 추가해야 할 물류정책을 제안하였다. 정책 제안은 장래 물류환경을 정책적, 사회적, 기술적 변화로 구분하여 제시하였다. 분야별로는 도시계획(10개 정책), 교통계획·ITS(8개 정책), 물류기술·ITS(6개 정책) 및 법·제도(8개 정책) 등이다. 정책의 지속성으로 구분하면 현재 추진 중인 정책이 계속되어야 할 것은 15개, 앞으로 새롭게 도입해야 할 정책은 17개이다.

• 한국주거학회논문집
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• 제25권6호
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• pp.133-146
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• 2014

This study aims to analyze the changes of adjacent residential area after the restoration of covered urban streams in seoul. The changes of adjacent residential area after restoration were analyzed by changes of land using, urban structure, individual lot of land and architecture to investigate relationship of the urban stream and residential change. The result as follows: the first one is the change of land use and urban structure in adjacent residential area. This change of infrastructure through stream restoration has transformed land use and urban structure in adjacent residential area. Secondly, there is the changes of the individual lot of land. It seemed that new development by combined lots would be concentrated in stream-side blocks. But, the changes of lots such as combining or dividing lots tend to be concentrated in stream-side, main road and main streets. In stream-side, commercial function of land use has changed to residential one which has restored streams landscape by transformation of lots use without changes of ownership-lots. Finally, there is the change of architecture. It turned out new building in adjacent residential area is similar to general development. However, new building in streamside is related to direction of stream. In addition, remodeling and expansion tend to change in commercial buildings on stream-side bridges of corner lots intensively. As a result, it is related to expectation of architectural activation and improvement of sidewalk environment by stream restoration.

• 한국환경과학회지
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• 제23권11호
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• pp.1807-1820
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• 2014

The spatial and temporal changes of the annual mean urban heat island(UHI) intensity were investigated using near surface temperature data measured at 16 automatic weather systems(AWS) in Busan metropolitan area(BMA) during the 11-yr period, from 2000 to 2010. For nighttime, the annual mean UHI intensity at Dongnae(U1) in 2000 was weaker than it in 2010. However the change of the annual mean UHI intensity at Daeyeon(U2) during 11 years was different from it at U1. The annual frequency of the UHI intensity over $5^{\circ}C$ considerably increased at U2 and decreased at U1 during 11 years. The center of the UHI also spatially shifted southward with Daeyeon and Haeundae in BMA. It would be caused by the increase of urban area, population-density and transportation near U2 and by the decrease of them near U1. We found that the spatial and temporal differences of the UHI intensity have coincided with changes of land-use, population density and transportation in BMA.