• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.4
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• pp.109-120
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• 2016

This study aims to assess vulnerability in urban thermal environments of Seoul by using indicators frequently used in previous studies as well as effective indicators for spatial planning like urban and environmental planning. For this purpose, fifteen indicators that influence urban thermal environments such as heat waves, urban heat island effects, and urban micro-climates were identified based on literature reviews. Indicators for presenting urban structure and spatial properties were included; for example, building volume as 'exposure to climate', buildings completed before 1980 as 'sensitivity', and green space areas as 'adaptive capacity'. Among them, twelve indicators were applied to assess vulnerability in urban thermal environments of Seoul by using a GIS spatial analysis combined with fuzzy logic. The results show that the Gangnam area is identified as more vulnerable to a heat environment as compared to the Gangbuk area. In the Gangnam area, Seocho-gu, Gangnam-gu, Dongjak-gu, Yeongdeungpo-gu, Gangseo-gu were relatively high in vulnerability, while Dongdaemun-gu, Gangbuk-gu, Gwangjin-gu, Jungrang-gu were relatively high in the Gangbuk area. Gwanak-gu, Dobong-gu, Eunpyeong-gu, and Nowon-gu, which include forested areas, have low vulnerability in the sectors of 'exposure to climate' and 'sensitivity' due to the impact of Gwanaksan and Bukhansan. However, some areas with high vulnerability like Seocho-gu and Gangnam-gu may have lower vulnerability if the indicator 'status of air conditioning' from the sector of 'adaptive capacity' is used. This study could support the establishment of a practicable thermal environment policy and spatial planning to reduce heat-related risks in the field of urban and environmental planning.

• Korean Architects
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• s.597
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• pp.22-27
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• 2018

"사실 국가건축정책위원장 책임을 떠안는 것에 고민을 많이 했습니다. 작금 건축의 본질에 관해 꽤 진지하게 논하는 결정권자들이 많아진 상황에서 직을 맡은 이상 그냥 시간만 보내진 않을 겁니다. 평소 생각한 건축계의 부족한, 불합리한, 불비한 부분을 임기 중 완전히 고치진 못한다 하더라도 시작은 해놓고 끝내려 합니다." 작년 4월 취임한 승효상 대통령소속 국가건축정책위원장이 국내 건축계 현안에 대한 생각과 앞으로의 계획을 설명했다. 그가 걸어온 삶의 궤적에는 건축의 공공성 문화적 가치라는 단어들이 새겨져 있으며, 이는 그가 활동해 온 건축계 여러 운동 모임에서도 살펴볼 수 있다. 지식인으로서 마땅히 지녀야 할 건축사(Architect)의 책무에 관해서는 쓴소리도 서슴지 않았던 그다. 2014년 서울시 '초대 총괄건축가'로 선임돼 서울시의 도시정책과 건축문화, 공공 공간조성 등 도시계획 전반에 대해 역할을 했다면, 이젠 국가 건축정책의 목표와 관계 부처간 건축정책의 심의.조정까지 그 역할범위가 커졌다. 필드의 건축사라면 승효상 국가건축정책위원장에게 기대하는 바가 큰 게 사실이다. 실제 그의 취임 후 정부 내 국건위의 위상은 과거와 달라졌으며, 작년 9월 4일에는 문재인 대통령이 서울 은평구 구산동 도서관마을에서 열린 '대한민국 국민생활 SOC현장 방문, 동네 건축현장을 가다' 행사에 참석해 도서관, 체육관, 경로당 등 '생활 SOC 혁신의지'를 강조해 눈길을 끌었다. 최근 정부세종신청사 설계공모 관련 논란에는 "국토부에 소관 설계공모 규정을 고쳐야 함을 권고했다. 고칠 거다! 안 고치면 안 되게 돼 있다!"며 목소리에 힘을 주어 재차 강조했다. 제5기 대통령소속 국가건축정책위원장으로 선임돼 지난해 4월부터 역할을 해온 승효상 건축사를 종로구 동숭동 (주)종합건축사사무소 이로재(履露齋)에서 만났다.

• Journal of Cadastre & Land InformatiX
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• v.49 no.2
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• pp.83-92
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• 2019

The particulate matters show high values in winter and spring season, it has a bad influence on the outdoor people. That's why government needs to come up with countermeasures for social weak people like elementary school students. In this paper, new particulate matter stations select ed about elementary schools using spatial analysis. Seoul city areas were divided with 608 hexagon grids(500m), and then implement spatial analysis such as kernel analysis. Finally, new particulate matter stations select through the results of kernel density analysis and point displacement. The results show that, 10 hexagon grids about new particulate matter stations were selected and listed 15 elementary schools including 10 hexagon grids. The 15 elementary schools were including Gangbuk gu, Eunpyeong gu, Guro gu, Dong gu, Geumcheon gu, Dongdaemun gu, Gangdong gu, Songpa gu, Gwangjin gu and Gangnam gu. The results suggests a new management plan direction according to the spatial analysis, result in the process of selecting the measures for the '2018 School Fine Dust Comprehensive Management Measures' announced by the Ministry of Education. Also, this study can be expanded by adding specific buildings as well as the school.

• Journal of the Korean Institute of Landscape Architecture
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• v.45 no.4
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• pp.131-142
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• 2017

This study aims to create a Local Climate Zone(LCZ) map of Seoul by using World Urban Database and Access Portal Tools(WUDAPT) protocol, and to analyze the characteristics of the Seoul LCZs. For this purpose, training samples of 17 LCZ types were collected by using Landsat images and Google Earth. LCZ Classification and Filtering were performed by SAGA GIS. An ArcGIS was used to analyze the characteristics of each LCZ type. The characteristics of the LCZ types were analyzed by focusing on building surface fraction ratio, impervious surface fraction ratio, pervious surface fraction ratio, building stories and air temperature. The results show that one filtering was found to be most appropriate. While Yangcheongu and Yeongdeungpogu with the higher annual and maximum mean air temperature than other areas have the higher rate of LCZ 3(compact low-rise) and LCZ 4(open high-rise), Jongnogu, Eunpyeonggu, Nowongu and Gwanakgu with the lower value have the higher rate of LCZ A(Dence trees). The values of building surface fraction ratio, impervious surface fraction ratio and building stories of each LCZ were included in the range of WUDAPT for most LCZs. However, the values of pervious surface fraction ratio were out of the range, in particular, in the LCZs 4~6 and 9~10. This study shows the usability and applicability of the WUDAPT methodology and its climate zone classification used in many countries as a basic data for the landscape planning and policy to improve the thermal environment in urban areas.

• Journal of the Korean Institute of Educational Facilities
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• v.18 no.1
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• pp.29-38
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• 2011

ent years, the change of urban function and the decrease in birth rate have given rise to merge, abolition and relocation of the existing schools. This study explores the possibilities for various land utilizations of relocated school sites, using the trial case of 'A' elementary school in Eun-pyeong gu, Seoul. 'A' elementary school has happened transfer plan due to the urban development project of the redevelopment area, Eun-pyeong gu in Seoul. Firstly, it studies the land use categories and the development methodologies of 7 relocated school sites happened in Seoul. In addition, it analyzes the land utilization after relocation, development principals, area, building usage and changes in land use regulation. Finally, it proposes the commercial exploitation of school site targeting 'A' elementary school site. Throughout the profit analysis, this study concludes that it is available to exploit the relocated school sites by the variety of development methodologies, especially in a metropolis like Seoul.

• Korean Journal of Plant Taxonomy
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• v.39 no.2
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• pp.120-123
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• 2009

A naturalized species from Korean flora, Cymbalaria muralis P. Gaetrn. (Scrophulariaceae), is firstly recorded from a well-drained bare field at Bulgwang-dong, Eunpyong-gu, Seoul city. The genus Cymbalaria Hill has not recorded in Korea and C. muralis is easily distinguished from the other species of Scrophulariaceae by palmately-lobed leaves, vine-like stems and cylindrical spur at the base in its flower. The new Korean name is 'Deong-gul-he-ran-cho'. Descriptions, illustrations and photographs of this species are given.

• Journal of Environmental Impact Assessment
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• v.20 no.4
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• pp.539-555
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• 2011

Newly constructed, high-rise dense building areas by urban development can cause changes in local wind fields. Wind fields were analyzed to assess the impact on the local meteorology due to the land use changes during the urban redevelopment called "Eunpyeong new town" in north-western Seoul using CFD_NIMR_SNU (Computational Fluid Dynamics, National Institute of Meteorological Research, Seoul National University) model. Initial value of wind speed and direction use analysis value of AWS (Automatic Weather Station) data during 5 years. In the case of the pre-construction with low rise built-up area, it was simulated that the spatial distribution of horizontal wind fields depends on the topography and wind direction of initial inflow. But, in the case of the post-construction with high rise built-up area, it was analyzed that the wind field was affected by high rise buildings as well as terrain. High-rise buildings can generate new circulations among buildings. In addition, small size vortexes were newly generated by terrain and high rise buildings after the construction. As high-rise buildings act as a barrier, we found that the horizontal wind flow was separated and wind speed was reduced behind the buildings. CFD_NIMR_SNU was able to analyze the impact of high-rise buildings during the urban development. With the support of high power computing, it will be more common to utilize sophisticated numerical analysis models such as CFD_NIMR_SNU in evaluating the impact of urban development on wind flow or channel.

• Korean Journal of Construction Engineering and Management
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• v.20 no.6
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• pp.23-33
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• 2019

The purpose of this study is to analyze the housing price variation within the redevelopment project district, affected by the characteristics of project and implementation stage. This study implemented the hedonic price model employing the actual transaction price with 24 dependent variables from 2006 to 2016 inside 19 redevelopment districts in Seoul. Research finding indicates that the larger ratio of the number of tenants and general distribution, the smaller ratio of rented households and the more positive effect of housing price. It is noteworthy that this study demonstrated the actual transaction price of houses located within the project districts by implementation stage. This study is expected to help the policy makers, the developers and the investors make more reliable decisions on the feasibility study related to the redevelopment project.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.182-182
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• 2018

한강의 제1지류인 홍제천 수계에 속하는 지방2급 하천인 불광천 유역을 연구대상지로 선정하여 기후변화에 따른 유출량 영향성 분석을 수행하였다. 연구대상지인 불광천은 서울특별시의 서북쪽에 위치하여 $21.72km^2$의 유역면적과 9.83km의 유로연장을 갖고 행정구역상 은평구, 마포구, 서대문구에 걸쳐있다. 본 연구에서는 불광천 유역을 503개의 소유역으로 분할하였으며, 유역의 하수관망은 976개의 노드와 989개의 링크를 사용하여 XP-SWMM 모형으로 구축하였다. 또한 국토지리정보원에서 제공하는 1:5000축척의 수치지도를 DTM으로 변환하여 하수관에서 월류된 이후의 2차원 흐름분석을 위한 지형자료로 활용하였다. 기후변화를 고려한 유출량을 분석하기 위해 S0(1961년~2016년)인 1개의 과거기간과 S1(2017년~2046년), S2(2047년~2076년), S3(2077년~2100년)인 3개의 미래기간을 설정하여 총 4개의 시나리오를 구성하였다. 과거기간인 S0는 강우관측소에서 계측된 자료를 사용하여 빈도별 확률강우량을 구하였으며, 미래기간인 S1, S2, S3는 기상청에서 제공하는 기후변화 시나리오인 RCP 4.5의 강우자료를 사용하여 확률강우량을 산출하였다. 빈도별 확률강우량은 S0기간의 강우자료와 가장 유사한 Gumbel 모형을 사용하였으며, 도출된 확률강우량은 치수에 가장 보수적인 Huff의 4분위로 강우를 분포시켜 유출모형에 적용하였다. 976개의 노드 중 불광천 유역의 주요 76개 지점을 선정하여 유역면적에 따른 기후변화의 영향성을 분석하였다. 그 결과 유역면적과 재현기간이 작을수록 최대 유출량은 큰 변동성을 보이는 것으로 나타났으며, 과거기간인 S0 대비 미래기간인 S1, S2, S3의 최대 유출량 비율은 유역면적 100ha를 기준으로 100ha 미만은 80%~200%의 변동성을 100ha이상에서는 120%에 수렴하는 양상을 보이는 것으로 확인되었다.

• The Bulletin of The Korean Astronomical Society
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• v.40 no.1
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• pp.88.2-88.2
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• 2015

지난 2009-2010년 수행한 제 1차 수도권 밤하늘 밝기 측정에 이어, 우리는 2014년 12월부터 2015년 2월까지 제 2차 수도권 밤하늘 밝기 측정을 수행하였다. 이번 2차 측정에서는 지난 1차 측정과 가능한 한 동일한 장소와 조건에서 밤하늘 밝기를 측정함으로써, 지난 5년간 발생한 밤하늘 밝기 및 주변 환경의 변화와 이 둘 사이의 상관관계를 알아보고자 하였다. 밤하늘 밝기 측정에 사용된 기기는 1차 측정과 마찬가지로 'SQM(Sky Quality Meter)-L'을 사용하였다. SQM-L은 표면등급($mag/arcsec^2$) 단위로 밤하늘을 측정하며 측정 오차는 ${\pm}0.1$ 등급이다. 이번 측정 결과 밤하늘 밝기가 가장 어두운 지역은 경기도 가평군 청평면 고성리(20.6 등급)로, 1차 측정에서의 가장 어두운 지역과 동일했다. 반면 가장 밝은 지역은 서울 영등포구 윤중초교와 서울 중구 남산초교(16.5 등급)로 나타났으며, 가장 어두운 지역과 밝은 지역 사이의 밤하늘 밝기 차이는 약 40배(~4 등급)로 나타났다. 이번에 측정한 밤하늘 밝기는 지난 1차 관측에 비해 전 지역에서 평균 0.5 등급 어두워진 것으로 나타났다. 특히 서울 은평구 갈현초교는 5년 사이에 1.5 등급 어두지면서 가장 큰 차이를 보였다(1차: 16.0 등급, 2차: 17.5 등급). 본 포스터에서는 이번 측정 결과와 진행 과정을 소개하고 두 관측 기간 사이에 발생한 밤하늘 밝기 변화의 원인에 대하여 토론하고자 한다.