• 제목/요약/키워드: urban area

검색결과 6,533건 처리시간 0.039초

An Effective Urbanized Area Monitoring Method Using Vegetation Indices

  • Jeong, Jae-Joon;Lee, Soo-Hyun
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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    • pp.598-601
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    • 2007
  • Urban growth management is essential for sustainable urban growth. Monitoring physical urban built-up area is a task of great significance to manage urban growth. Detecting urbanized area is essential for monitoring urbanized area. Although image classifications using satellite imagery are among the conventional methods for detecting urbanized area, they requires very tedious and hard work, especially if time-series remote sensing data have to be processed. In this paper, we propose an effective urbanized area detecting method based on normalized difference vegetation index (NDVI) and normalized difference built-up index (NDBI). To verify the proposed method, we extract urbanized area using two methods; one is conventional supervised classification method and the other is the proposed method. Experiments shows that two methods are consistent with 98% in 1998, 99.3% in 2000, namely the consistency of two methods is very high. Because the proposed method requires no more process without band operations, it can reduce time and effort. Compared with the supervised classification method, the proposed method using vegetation indices can serve as quick and efficient alternatives for detecting urbanized area.

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도시 지역특성을 고려한 빗물받이 유입구의 막힘계수 산정 (An Estimation of Clogging Factors at Stormwater Grate Inlets with Consideration of Urban Area Characteristics)

  • 김정수;송주일;윤세의
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2007년도 정기총회 및 학술발표대회
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    • pp.595-598
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    • 2007
  • Urban storm water collection and conveyance systems are critical components of the urban infrastructures. During a storm event, street grate inlets are usually loaded with debris by the first-flush runoff volume. Grate inlets are subject to clogging effects. Effective interception area of grate inlets was decreased by clogging. It also decreased the interception capacity of grate inlets and increased the inundation area in street. Therefore, it is necessary to analyze the clogging characteristics and interception capacity change by clogging for appropriate design and management of grate inlets. In this study, field survey was executed to investigate debris and clogging pattern of grate inlet in 9 areas. The clogging factor with consideration of urban area characteristics was estimated with the field survey results.

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전북지역의 주부가 담근 저장식품과 뇨중의 식염함량에 관한 연구 (A Study on Contents of Salt in Stored Foods Which Homemakers Prepared and Their Urine in Chon-buk Province)

  • 김인숙;서은숙;전순영
    • 한국식품영양학회지
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    • 제7권3호
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    • pp.183-191
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    • 1994
  • This study was conducted to find out the contents of salt in stored foods and urine of housewives. The contents of sodium in soy sauce, kochujang and kimchi was significantly higher in rural than urban area. The contents of potassium In soy sauce and kimchi was significantly higher in rural than urban area but that of soybean paste was significantly higher in urban than rural area. The level of NaCl in soy sauce, hochujang and kimchi was significantly higher in rural the urban area. The excretion amount of Na, K and NaCl in urine was significantly higher In rural than urban area. The between of blood pressure and the contents of Na in urine had a high correlation.

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부산지역 도심하천 복원에 따른 기온변화 효과 분석 (An Analysis of the Temperature Change Effects of Restoring Urban Streams in Busan Area)

  • 정우식;도우곤
    • 한국환경과학회지
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    • 제21권8호
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    • pp.939-951
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    • 2012
  • This study is conducted to estimate the air temperature decreasing effects by restoring urban streams using WRF/CALMET coupled system. The types of land use on covered streams are constructed with the land cover map from Korea ministry of environment. Restoring covered streams changes the types of land use on covered areas to water. Two different types of land use(CASE 1 and CASE 2) are inputted to the WRF/CALMET coupled system in order to calculate the temperature difference. The results of the WRF/CALMET coupled system are similar to the observed values at automatic weather stations(AWS) in Busan area. Restoring covered streams causes temperature to be decreased by about $0.34{\sim}2^{\circ}C$ according to the locations of streams and the regions that temperature is reduced are widely distributed over the restored area. Reduction of temperature is increased rapidly from morning and maximus at 13LST. Natural restoration of streams will reduce the built-up area within urban. With this, temperature reductions which are the cause to weaken the urban heat island appear. Relief of urban heat island will help to improve the air quality such as accumulation of air pollutants in within urban area.

경기도 도시공원의 지정.조성 분석을 통한 개선방안 연구 (Recommendations for the Improved Urban Park Policy in Gyeonggi Province through Analyzing Designation and Creation Rationale)

  • 성현찬
    • 농촌계획
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    • 제13권3호
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    • pp.111-122
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    • 2007
  • This study aims at providing basic policy materials to build a basis for supplying and creating urban parks balanced across Gyeonggi province and improving the quality of life of residents through, an extensive analysis of all city parks in cities/counties in Gyeonggi province. The study result showed that first, the number of parks is only 40% of the adequate number and, thus, accessibility of Gyeonggi province residents to parks in neighborhoods is significantly low. Second, a proportion of park types in children's park, neighborhood park, urban nature park is 67% : 24% : 2%, which is adequate in Gyeonggi province as a whole. Third, as for the area of parks per resident, the area of designated park is $17.7m^2$/person, which is over three times of legal requirement in urban planning area ($6m^2$/person). However, created park area is only $5.6m^2$/person, which fails to meet the legal requirement. Fourth, when park area of each city was compared, the areas varied significantly across cities. The Gyeonggi provincial government needs to secure funds aggressively and accelerate setting up and expanding facilities at designated parks located within the current urban areas. The findings from this study should be used as important materials when developing supply & demand policies for urban parks in Gyeonggi province. The study implicates that independent park policies and management by each city/county as well as the establishment and management of a comprehensive park policy at a provincial level is significantly important.

도시와 농촌지역 노인의 건강증진행위와 지각된 건강상태 비교 (The Comparative Study on the Health Promotion Life Style and Perceived Health Status of Elderly in Urban and Rural Area)

  • 박정숙
    • 농촌의학ㆍ지역보건
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    • 제27권2호
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    • pp.137-148
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    • 2002
  • Objectives: This study was to investigate the needs for developing the health promotion program for elderly and to compare the health promoting lifestyles behaviors and perceived health status of elderly in urban and rural area. Methods: The data was collected from 82 elders in urban(D city) and 77 elders in rural area(C county) by face to face interview. The Health Promoting Lifestyle ProfileII(HPLPII) and Perceived Health Status were used. Results: 1) The total score of HPLP was 2.44. In the subscales, the highest degree of performance was 'nutrition', following 'interpersonal relationship', 'stress management', 'health responsibility' and 'spiritual growth' and the lowest degree of performance was 'physical activity'. 2) Elderly people living in urban area had significantly higher the total HPLP score than elderly people living in rural area The urban elderly had significantly higher the score of HPLP subscales such as 'physical activity', 'interpersonal relationship' and stress management than rural elderly. 3) The mean score of perceived health status was 8.79. There was no significant difference in the perceived health status between urban and rural elderly. Conclusions: The above findings indicate that it is necessary to develop a health promotion program with reinforced physical activity, health responsibility and spiritual growth for elderly people in Korea. Especially the physical activity need to he strengthened for rural elderly.

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도시정비사업지구의 거주자 재입주 선택 특성에 관한 연구 (A Study on the Characteristic of Resettlement Decision in Urban Redevelopment Project District)

  • 손영웅;김승운;이주형
    • KIEAE Journal
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    • 제12권1호
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    • pp.11-19
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    • 2012
  • The subject of this study is capital area including Seoul and Incheon, and metropolitan area including Daejeon and Busan among urban redevelopment project district that are currently promoting urban redevelopment project. Data for analysis is implemented collected through visiting each households in project district. Resettlement decision characteristics are analyzed with considering householder's characteristic, house member's characteristic, residential space's characteristic, and area characteristic of families residing in urban redevelopment project area. Through researching characteristics and preferences of residents in project area by urban redevelopment business, improvement were found and implications were provided. Consequently, there are many factors to consider resettlement when deciding household's resettlement when deciding on household's resettlement after the redevelopment project depending on household's characteristics. So, political methods are needed to accomplish urban redevelopment project by resident's position through characteristic and preference survey of resident on project district. Therefore, the study can be utilized as basic data that considers characteristic of each households and region when establishing house policy in order to correspond to housing market that satisfies future consumer's demand.

도시관리계획에 의한 대규모 도시지역 확장의 실태와 시사점 (Issues on a Large-scale Enlargement of Urban Area and their Implications for a Management Plan)

  • 윤정중;김륜희;최상희
    • 토지주택연구
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    • 제1권1호
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    • pp.103-111
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    • 2010
  • 이 글의 목적은 도시관리계획 변경을 통한 대규모 도시지역 확장의 현황과 문제점을 살펴보고 향후 계획수립 시 고려할 시사점을 제시하는 것이다. 이 글에서는 양주시, 김포시, 화성시 등 3개 시를 사례로 분석하였다. 분석결과는 다음과 같다. 첫째, 도시 지역의 적절한 규모를 선정하기 위해서는 도시기본계획 수립단계에서부터 합리적인 인구계획과 공간구조 및 토지이용계획이 수립되어야 한다. 또한, 개발욕구에 따른 무리한 확산 및 비계획적 개발을 방지하기 위해 도시관리계획 수립 시 도시성장관리방안이 함께 검토되어야 한다. 둘째, 경계설정에 대한 불필요한 논란을 줄이기 위해서는 계획 입안 시 또는 계획결정과정에서 일반적으로 거론되고 있는 경계설정과 용도지역관리 등의 기준들을 관련지침에 명시하여 제시할 필요가 있다. 셋째, 도시지역으로 새로 편입되는 지역의 난개발 방지대책의 수립은 도시의 건전한 발전과 관리를 위해서 매우 중요하게 다루어져야 한다. 또한 비도시지역의 경우 시가화예정용지 또는 제2종지구단위계획 물량을 활용하여 기존공장 및 신규입지를 집단화하도록 유도할 필요가 있다.

도시공간의 변화에 내재한 정치${\cdot}$경제적 논리의 규명-서울시 도심재개발을 대상으로- (The Political-Economic of Capitalism and its Effects on Spatial Dynamics)

  • 박선미
    • 대한지리학회지
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    • 제28권3호
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    • pp.213-226
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    • 1993
  • 본 연구는 서울시 도심재개발을 대상으로 도시공간의 재편과정에 내재하는 정치.경제적 논리를 규명함으로써 도시의 형성과 변화가 사회구조의 산물임을 밝히고자 하였다. 서울시의 도심재개발 사업은 1970년대 전반부터 생산과정의 분화가 이루어짐에 따라 대기업 본사가 도심으로 집중하는 상황에서 시작되었다. 또한 도심재개발은 1980년대 불황국면에 접어들면서 더욱 활발해졌는데, 이는 불황시기의 유휴자본의 문제를 도시공간을 재개발하는데 투자하여 극복하려는 논리에 근거한 것이었다. 그리고 도심재개발은 이를 전체적인 수준에서 주관하고 토지소유권의 통합, 토지수용권의 인정, 제 3개발자 인정, 재정. 세제상의 혜택, 건축규제의 완화 등 법적. 행정적 지원기관인 서울시의 정책과 맞물려 있었다. 그 결과 생활터전으로써의 도심은 업무공간으로 단순화되고, 도심인구의 空洞化現象은 더욱 심화되었다.

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도시성장에 따른 공간구조의 변화에 관한 연구 -의정부시의 사례를 중심으로 (A Study on Changes and Differences in Spatial Configuration of the Urban Sub-Area Development - In the Case of Uijeongbu City)

  • 박종현;권영;이종렬
    • 한국디지털건축인테리어학회논문집
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    • 제4권2호
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    • pp.35-43
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    • 2004
  • Transformations of the urban spatial structure, from sub-area redevelopment to newtown development, results great influences upon existing urban condition and spatial configuration. The purpose of the study is to analyse the effect of the urban spatial configuration of Uijongbu city where experienced changes after newly development of city center and new residential area. The west part of the city where is limited in growth by military bases, ego U.S Army basecamp, were planned and established as the other axis of the city center since mid 1980's. After that new residential area which is located in far east of the city were also developed. Space syntax as a methodology has been adopted to conduct quantitative analysis which is able to interpret differences between sub-areas ; old city center, new city center, new residential area. The results of the analysis are follows ; 1) existing structure of the urban fabric, especially old city center, is sustained and intensified, 2) new city center which is west part of the city has failed to achieve organic spatial connection adjacent to old city center, 3) there is less spatial depecdency relationship between city center and new residential area where is identified as another small self-support city within the city.

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