• Title/Summary/Keyword: Suburban area

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LANDCOVER CHANGE DETECTION USING MODIS TEMPORAL PROFILE DATA SUPPORED BY ASTER NDVI

  • Yoon, Jong-Suk;Kang, Sung-Jin;Lee, Kyu-Sung
    • Proceedings of the KSRS Conference
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    • 2008.10a
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    • pp.382-385
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    • 2008
  • MODIS images have a great advantage of high temporal resolution to monitor land cover changes in a large area. The moderate and low spatial resolution satellite images are incomparably economic than high resolution satellite images. As diverse satellite images are provided recently, strategies using satellite images are necessary for continuous, effective and long-term land monitoring. This research purposed to use MODIS images to monitor land cover in Korean peninsula for long-term and continuous change detection. To maximize the advantages of high temporal resolution, the change detection was based on the MODIS temporal profiles of the surface reflectance for one year. In this study as the reflectance patterns of year 2005 were compared with the reflectance patterns of year 2007, the changed pixels could be detected during two years. To set up the threshold value for the decision of change, ASTER images with the higher spatial resolution, 15m, were used for this study. The test area covered the suburban area of metropolitan city, Seoul, where the landcover changes have been frequently happened.

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Comparison of the Opinion about Senior Congregate Housing -with Special Focus to the Areas of Seoul Metropolitan Area, Busan, Gwangaju, and Daejun- (노인공동생활주택에 대한 지역별 견해 비교 -서울ㆍ수도권, 부산, 광주, 대전 지역을 중심으로-)

  • 홍형옥;지은영
    • Journal of the Korean housing association
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    • v.15 no.1
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    • pp.163-174
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    • 2004
  • The purpose of this study was 1) to analyze the attitudes about Senior Congregate Housing(SCH) among 4 urban areas, 2) to propose the various model for SCH which should be provided to satisfy the demand. Same opinions among 4 urban areas were ; 1) Whom were willing to move into SCH for later life, most of them were in early 50s. Most of the respondents desired to be serviced community alarm system, preferred one-room style, size of 11∼15 Pyung, and preferred living at suburban area. The multi-family type was preferred when not being healthy and be singled, but if healthy, preferred the type of single detached house. And they preferred the home ownership, highly valued of heating control system, health care and leisure programs. Thus for the future SCH, it should be designed all facilities were equipped with sports facilities, sauna and leisure programs. The findings indicated that the high rates of supporting with professional management for 24 hours by turn. But different opinions among 4 urban areas were; 2) Willingness live in SCH for later life had little difference in level of income, education, property. Especially, residents of Seoul Metropolitan area and Busan did not want to open their own common facilities to the public.

A Study on the Classification by the Spatial Index of the University Campuses (대학 캠퍼스 공간적 지표에 의한 유형화에 관한 연구)

  • Kim, Cheon-Il;Shin, So-Young;Kim, Ick-Hwan
    • Journal of the Korean Institute of Educational Facilities
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    • v.23 no.4
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    • pp.3-10
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    • 2016
  • This paper presents the investigation results on the classification of the university campuses. For the classification, we selected the spatial index as the evaluation indicator since the environmental factors and maintenance methods vary from university campus to university campus. For the study, we used eight spatial indices of the 30 national universities. This paper provides the spatial characteristics of different campus types, presents campus classification analysis as a future research approach to campus maintenance, and provides the data for the future study of comparison among universities. The results are as follows. 1) The classification investigation categorized the university campuses into three groups. Type 1 is a large-scale type, located near downtown. Type 2 is a medium-scale type, located at a remote site from downtown. Type 3 is a small-scale type, which is located comparatively near downtown. 2) Type 1 is a large-scale mixed area type, and 13 universities belong to this group. Type 2 is a medium-scale suburban area type, and six universities are in this group. Finally, Type 3 is a small-scale downtown area type, and 11 universities belong to this group.

Actual Vegetation and Plant Community Structure of Urban Forest in Kwangju Metropolitan City (광주광역시 도시림의 현존식생과 식생구조)

  • 이규완;오구균
    • Journal of the Korean Institute of Landscape Architecture
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    • v.23 no.2
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    • pp.148-156
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    • 1995
  • This study was conducted to investigate the actual vegetation and plant community structure of the urban forest in Kwangju Metropolitan City. Thirty eight plots in the urban forest were set up by the clumped sampling method. The degree of green naturality, 6 that is artifical planting area covered 10.9% in Kwangju Metropolitan City and Pinus densiflora community covered 48.7% of the actual vegetations of urban forest. Canopy height, Diameter of breast height (DBH) and No. of species in urban forest were 13.5m, 21cm and 24 species, respectively. The soil conditions and community structure of the urban forest were differenced by location of urban and suburban area. The plant communities divided into six groups which were Quercus acutissima community, Q. acutissima-Robinia pseudo-acacia community, Pinus rigida Community, P. rigida-P. densiflora community, P. densifrora-Q. acutissima community and Q, serrata-P. densiflora community. Successional series of the urban forest in the surveyed area were proceeding from P. dinsiflora to Quercus species. The species diversity of plant were high in natural plant community but low in artificial plant community. Tree density in the canopy layer varied from 600ea/ha to 2,800ea/ha.

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What Kinds of Lands Have Been Converted into the Urban Uses?: the Characteristics of Urban Land Development in the Case of Daegu Region

  • Kim, Jae-Ik
    • Land and Housing Review
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    • v.3 no.2
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    • pp.111-116
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    • 2012
  • The primary purposes of this study are to identify the characteristics of land development in urban area through GIS and remote sensing techniques and to provide useful implications for urban spatial policy. To perform these tasks, Daegu metropolitan city and its vicinities were selected as a study area, and remote sensing data and attributed data were collected, organized and analyzed. This study focuses on the following three steps. First, it identifies the characteristics of land development in urban areas by utilizing multi-temporal satellite image data (Landsat TM, 1980, 1985, 1990, 1995, 2000 and 2005). Second, it tries to find an answer on a critical question concerning land use conversion, i.e., which land use leads expansion of urban area? Third, it derives implications for urban spatial policies based on these findings. The characteristics of the urban extents tell us that the main land use converted into urban use from non-urban uses is green areas. The public sector, central and local governments, leads the land use conversions of suburban lands as exclusive legal body to issue permission of land use change. Based on these findings, this study concludes that the more systematic and technically advanced management tools should be utilized for more effective spatial management for urban growth.

A Study on the Architectural Changes of the Logistics Center due to Automation and Enlargement - Focusing on the case of Coupang, E-Mart, Amazon Logistics Centers - (자동화, 대형화로 인한 물류센터의 건축적 변화에 대한 고찰 - 쿠팡, 이마트, Amazon 물류센터의 사례를 중심으로 -)

  • Jo, Yong-Hyun;Choi, Choon
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.36 no.1
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    • pp.37-48
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    • 2020
  • Logistics centers, distribution centers, or warehouse facilities increasingly dominate urban and suburban landscapes, their enormous but blank, repetitive facades completely overshadowing adjacent buildings. Mostly ignored by architects, this new building type symbolically represents the arrival of post-anthropocene, or post-urbicene era of architecture, in which an increasing portion of our built environment will not be intended for human occupancy, but rather for use by machines and artificial intelligence. As a new wave of logistics centers are becoming more automated, and more supersized, it is important to deepen architects' understanding of the organizational logic and programming factors that inform the overall design decisions for these facilities. With a particular focus on three case studies--Coupang, E-Mart, and Amazon Fulfillment Centers, this research examines the current trends in automation and expansion of logistics centers, and offers an analysis and forecast for future facilities in South Korea.

Visitor Behavior and Satisfaction in Suburban Recreational Forests - Focused on the suburbs of Seoul - (도시근교형 자연휴양림 이용 행태와 만족도 분석 - 서울 근교를 중심으로 -)

  • 서주환;최현상;전형석
    • Journal of the Korean Institute of Landscape Architecture
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    • v.30 no.6
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    • pp.57-65
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    • 2003
  • This study researches attributes , behaviors , satisfaction factors and degrees of curiosity of visitors to recreational forests in the suburbs of a large city. It aims to present suggestions for urban forest development and management policy by offering basic data which help to plan, design and manage recreational forests to increase the quality of these environments. The results are as follows First, in attribute, the visiting rate of males is higher than that of females, and the main users are in their thirties and forties. Sixty percent of visitors graduated from university and their rate of employment is evenly distributed. 95 percent of visitors are residents of the metropolitan area. In terms of behavior, major visitors are family units visiting during summer seasons and for overnight stays. 75% are re-visitors. 85% of visitors came to escape the city with families and friends, keep in good health and experience nature. Second, to extract the factors affecting visitor satisfaction in recreational forests, the natural environment, facilities, and management/use systems were identified as independent variables, while subordinate satisfactions were dependent variables. so regression analysis was used. Thus, the variables affecting the natural environment are quality of water, stream use, biodiversity, fresh air and landscape factors. The variables affecting facilities are puking, convenience, play facilities, sanitary arrangement and camping. Most important among the variables affecting management/use systems are educational facilities and access condition. On the basis of generalizing the study in the existing individual site, we must verify the visiting characteristics in recreational forests in the suburbs of a large city. Since development of recreational forests is understood as a sequence considering a site and a given condition, and since management and improvement must unfold according to these characteristics, a strategy is needed to reveal visitors' opinions about the site. Depending on the facilities and service, satisfaction of recreational forests is generally influenced by social and economic qualities. Also, this study can look into the effect according to use pattern motive and season. As suburban recreational forests have many overnight-users and younger men, programs suitable for these groups are needed. On the basis of variables affecting satisfaction according to natural environment, facilities, and use system, policies which can manage the natural environment and introduce educational programs are needed.

Meteorological Characteristics in the Ulsan Metropolitan Region: Focus on Air Temperature and Winds (울산지역의 기상 특성: 기온과 바람을 중심으로)

  • Oh, Inbo;Bang, Jin-Hee;Kim, Yangho
    • Journal of Korean Society for Atmospheric Environment
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    • v.31 no.2
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    • pp.181-194
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    • 2015
  • Spatial-temporal meteorological features of the Ulsan metropolitan region (UMR) were analyzed using observations and high-resolution numerical modeling. Long-term trend analysis (1970~2013) showed a significant increase of $0.033^{\circ}Cyr^{-1}$ in the 5-year moving average temperature, although detailed short-term features varied, whereas wind speed and relative humidity over the same period displayed clear decreases of $-0.007ms^{-1}$ and $-0.29%yr^{-1}$, respectively. These trends indicate the effects of regional climate change and urbanization in the UMR. Seasonal variations averaged for the most recent three years, 2011~2013, showed that temperatures in three different regions (urban/industrial, suburban, coastal areas) of the UMR had similar seasonality, but significant differences among them were observed for a certain season. Urban and industrial complex regions were characterized by relatively higher temperatures with large differences (max.: $3.6^{\circ}C$) from that in the coastal area in summer. For wind speed, strong values in the range from 3.3 to $3.9ms^{-1}$ occurred in the coastal areas, with large differences clearly shown between the three regions in September and October. Diurnal variations of temperature were characterized by pronounced differences during the daytime (in summer) or nighttime (in winter) between the three regions. Results from the WRF modeling performed for four months of 2012 showed large variations in gridaverage temperature and winds in the UMR, which displayed significant changes by season. Especially, a clear temperature rise in the urban center was identified in July ($0.6^{\circ}C$ higher than nearby urban areas), and overall, relatively weak winds were simulated over urban and inland suburban regions in all seasons.

Quantitative Evaluation Indicators for the City Bus Route Network (시내버스노선체계 평가를 위한 정량적 지표의 설정 및 적용)

  • 이상용;박경아
    • Journal of Korean Society of Transportation
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    • v.21 no.4
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    • pp.29-44
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    • 2003
  • A balanced evaluation system for a bus route network was proposed for a mid-sized suburban city. The evaluation system consists of 7 criteria-accessibility, riding comfort. transfer rate, directness of route, productivity of operation, regional equity, and minimum requirement of bus fleet - and quantitative indicators representing each of the criteria. The proposed system was applied in Siheung, a suburban city in Seoul Metropolitan Area. Four alternative scenarios of bus route network including the existing one were evaluated. The results showed that the suggested criteria and indicators are acceptable for the evaluation of a bus route network. In order to enhance the proposed evaluation procedure, further studies on the normalization of produced values and weights for each of the indicators are needed.

Recent patterns of Enterobius uermiculuris infection in some school children, Korea (국내 일부 지역 학동에 있어서 요충의 최근 감염상)

  • 양용석
    • Parasites, Hosts and Diseases
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    • v.26 no.3
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    • pp.215-220
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    • 1988
  • To investigate the infection status of Enterobius vermicularis the author tried surveys by srotchtape anal swab on school-children and household environmental factors considered to have inauences on the infection were analysed by an inquiry method with questionnaire. The survey was carried out in October, 1986 and 1988 in urban and suburban areas and the results could be summarized as follows: 1. The egg Positive rate in anal swab. was 16.0% (male 14.5%, female 17.6%) out of 2, 156 school-children and higher in female group. 2. The egg Positive rate of suburban school-children (175% out of 1, 305 children of two primary schools) was a little higher than that of urban school.children (13.6% out of 851 children of one primary school). 3. The questionnaire analysis on environmental factors showed some significant relations between the egg Positive rate and such factors as the number of brothers and sisters, householder's occupation, and availability of childroom or bathroom. The results indicate that, although enterobiasis in school-children has shown decreasing tendency in Korea, it is still considerably high in some urban and suburban areas.

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