• Title/Summary/Keyword: Spatial assessment

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A Study on Inventory Construction and Utilization for Spatial Information-based Environmental Impact Assessment (공간정보 기반의 환경영향평가 확대를 위한 인벤토리 작성 및 활용 방안 연구)

  • Cho, Namwook;Lee, Moung Jin
    • Korean Journal of Remote Sensing
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    • v.35 no.2
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    • pp.317-326
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    • 2019
  • Development projects and related environmental impacts take place in space. Therefore, it is important to use spatial information in the environmental impact assessment process. This study proposes to construct spatial information produced by various organizations as an inventory and suggests it to be utilized in environmental impact assessment process. For this purpose, investigate the use of spatial information in the environmental impact assessment process and list of environmental space information provided by public information systems. and applied the methodology derived from previous studies to build an inventory of spatial information using environmental impact assessment. The spatial information utilized in the environmental impact assessment work was 64 items. Based on the data availability, linkage and renewability, the spatial information of the Environment that can be used for the environmental impact assessment was 45 items. Finally 49 items, including 19 new items were presented as an inventory, contributing to the performance of environmental impact assessment based on spatial information.

Standardization Plan for Activation of Environmental Impact Assessment based on Spatial Information (공간정보 기반 환경영향평가 활성화를 위한 표준화 방안)

  • Jang, Jung-yoon;Cho, Namwook;Lee, Moung Jin
    • Korean Journal of Remote Sensing
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    • v.35 no.3
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    • pp.433-446
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    • 2019
  • Environmental impact assessment has been performed as preliminary assessment system in order to conserve environment value and minimize negative effect from development. Assessment based on data has been necessary to strengthen objectivity in process of Environmental impact assessment process. Furthermore extended use of spatial information in Environmental impact assessment system has been required through spatial information provided at government level and possibility connected with spatial information in Environmental impact assessment. However spatial information has not been systematically utilized in current Environmental impact assessment. Also the environmental impact assessment workers including assessment government employees, agencies of Environmental impact assessment document and review agencies lack an understanding in the concept of spatial information, so there is limit about their use to efficiently. In order to improve these limits in use of spatial information, this study suggested measures to standardize spatial information (coordinate and attribute table). To do so, based on coordinate and standards certified by the government, this study defined standard coordinates (GRS-80, central datum point, False East: 100000, False North: 200000) and established 9 default items. Lastly, the aforementioned standards were tested for actual environmental impact assessment projects. Standardization measures suggested in this study are expected to contribute to invigorate spatial information utilization in Environmental impact assessment and expand the scope of the assessment.

Landscape Scale Ecosystem Assessment Modelling Using Spatial Pattern Analysis of GIS: A Case Study of Yongin, Korea (GIS 공간유형분석 모형을 이용한 경관 규모 생태계의 평가기법)

  • 손학기;김원주;박종화
    • Spatial Information Research
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    • v.8 no.2
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    • pp.233-241
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    • 2000
  • The objective of this study were to develop landscape scale ecosystem assessment model, and apply the model for the assessment of the state and change of ecosystem of the study area, Yongin, Korea. Since natural ecosystem of the site has been deteriorated significantly during recent extensive residential development, it is essential to correctly assess ecosystem of the study site. Traditional ecosystem assessment mainly utilizing intensive field survey requires high cost, but the outcome rarely represents spatial pattern of the regional ecosystems. Ecosystem assesment of landscape scale based on landscape ecology can resolve most of the shortfalls of the traditional approach. The research method can be summarized as follows. First, extensive literature review on such topics as spatial pattern of ecosystem, ecosystem assessment of landscape scale, ecological analysis was carried out. Second, a model for the ecosystem assessment of landscape scale emphasizing spatial pattern of ecosystem was developed. This model evaluates three indicators; ecological integrity and biological diversity, watershed integrity, and landscape resilience of 11 watersheds in the study area. Finally, ecological assessment utilizing two sets of indicators, enhancement of and disturbance of ecosystem stability, was carried out. This assessment method is based on Environmental Monitoring and Assessment Program´s Landscape component(EMAP-L) of EPA(1994). The results of this study are as follows. First, the ecosystem assessment of landscape scale of the study area of Yongin, Korea, showed that escosystems of Tanchun01 and Chungmichun01 watersheds had the worst state in the study site in 1991. On the other hand, the ecosystems of Jinwechun01, Kyunganchun02, and Bokhachun01 watersheds had the most stable ecosystem in 1991. Second, ecosystems of Tanchun01, Shingal reservoir, and Kyunganchun01 watersheds were evaluated to be the worst state in the study site in 1996. And, ecosystems of Jinwechun01 and Gosam reservoir watersheds had the most stable ecosystem. Third, ecosystem of Tanchun01 watershed which incudes Suji residential development project site changed the most drastically between 1991 and 1996. The ecosystem of the watershed the most drastically deteriorated due to it´s proximity to Seoul and Bundang new town.

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A Study on Range of Environmental Impact Assessment for Cumulative Effect Assessement - A Review on Living Environment Sector - (누적영향평가를 위한 평가범위 산정에 대한 연구 - 생활환경분야를 중심으로 -)

  • Kim, Youngha;Lee, Onkil;Lee, Youngsoo
    • Journal of Environmental Impact Assessment
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    • v.17 no.5
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    • pp.299-309
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    • 2008
  • Cumulative effects can be defined as impacts on environment which results from incremental impacts of a proposed project, which covers other past, present, and reasonably foreseeable future actions. The necessity of Cumulative Effect Assessment is that, when there are several projects near the project area, environmental effects of individual project can be larger or smaller than those of individual project without having projects nearby because of synergy, ascending and descending effects. This study was intended to help Environmental Impact Assessment practitioners identify spatial and temporal boundaries during the scoping stage. To do this, literature review of domestic and foreign legislations, guidelines, textbooks and papers related to Environmental Impact Assessment and Cumulative Effect Assessment was accomplished. This study suggests that continuous research be needed in order to identify spatial boundaries for other assessment fields and to develop methodologies for cumulative effect assessment.

Construction of Spatiotemporal Big Data Using Environmental Impact Assessment Information

  • Cho, Namwook;Kim, Yunjee;Lee, Moung-Jin
    • Korean Journal of Remote Sensing
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    • v.36 no.4
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    • pp.637-643
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    • 2020
  • In this study, the information from environmental impact statements was converted into spatial data because environmental data from development sites are collected during the environmental impact assessment (EIA) process. Spatiotemporal big data were built from environmental spatial data for each environmental medium for 2,235 development sites during 2007-2018, available from public data portals. Comparing air-quality monitoring stations, 33,863 measurement points were constructed, which is approximately 75 times more measurement points than that 452 in Air Korea's real-time measurement network. Here, spatiotemporal big data from 2,677,260 EIAs were constructed. In the future, such data might be used not only for EIAs but also for various spatial plans.

A Case Study of Instruction and Assessment on Volcano Using GeoMapApp to Foster Elementary Students' Spatial Thinking and Visualization (초등학생들의 공간적 사고와 시각화 능력 함양을 위한 GeoMapApp 활용 화산 단원 수업 및 평가의 사례)

  • Song, Donghyuk;Maeng, Seungho
    • Journal of Korean Elementary Science Education
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    • v.38 no.1
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    • pp.116-129
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    • 2019
  • This study investigated elementary students' spatial thinking and visualization when they learned the shape of volcanoes. For this purpose we used GeoMapApp to design instruction program and assessment items. In the instruction, students were asked to connect the floor plan view of Jeju island with the cross-sectional view of the same figure producted by GeoMapApp. Then they were asked to classify four sets of pictures of volcanoes based on the similarities of figures, that is, dome-shaped and shield volcanoes. In the assessment students solved three questions which examined how they connected the plan view and cross-sectional profile of Kilauea, draw cross-sectional profile of Mt. Fuji, and distinguished a shield volcano and dome-shaped one. Students' discourse data during the class were analyzed according to the amount to showing their spatial thinking and visualization. The instruction program using GeoMapApp assisted students to facilitate their spatial thinking for understanding of volcanoes. The outcomes of assessment showed even elementary students had good spatial thinking and visualization. Therefore, we argued spatial thinking and visualization for geoscientific understanding need to be included in the national science curriculum for elementary students.

Development of Safety Assessment Indicators and Facility Management System for Crime Prevention - A Case Study of Park -

  • Lee, Su-Ji;Lee, Seung-Su;Song, Ki-Sung;Hwang, Jung-Rae
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.7
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    • pp.109-116
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    • 2019
  • In this study, a GIS-based park safety assessment index was developed to enable objective park vulnerability assessment through data-based GIS analysis, a safety assessment was conducted by selecting a target site where various parks are operated and applying the park safety assessment index. In addition, a facility management system was developed for efficient management of the park safety assessment to update the park safety and provide a foothold for indirect PPGIS. In the case of the assessment index of the safety rating of the park, it was possible to conclude that the accurate quantitative performance was given to the calculation of the safety grade of the park based on the fact that the facilities are different depending on the environment and the size of the park. In addition, the marking the safety grade of parks, as well as the function to show the safety facilities of parks, a common living area for citizens, the management system is expected to have an impact on promoting the use of parks. In the future, in functions such as reporting of facility failures and verifying civil information are implemented by applying civic group participation programs and crowd-sourcing technologies, it is believed that all facilities as well as parks managed by the local government can be managed more efficiently.

Assessments of Spatial Neglect : Comparison of KF-NAP (Kessler Foundation - Neglect Assessment Process) and Pencil-Paper test (편측 공간무시 환자의 평가: KF-NAP(Kessler Foundation - Neglect Assessment Process)과 지필검사의 비교)

  • Jeong, Eun-Hwa
    • Therapeutic Science for Rehabilitation
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    • v.7 no.1
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    • pp.27-35
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    • 2018
  • Objective : The aim of this study was to identify correlation between KF-NAP and Pencil-Paper test(Line bisection test, Letter cancellation, Albert's test) and to determine the high sensitive assessment tool for spatial neglect. Method : Thirty-two stroke patients who admitted to an inpatient rehabilitation unit at the medical center in Seoul from September, 2014 to September, 2015 were included in our research. They all have spatial neglect (male=19, female=13, the average age 61.8). KF-NAP and Pencil-Paper test were performed within 7 days. The detection of spatial neglect was analyzed by total scores of each assessments. Results : The highest sensitivity assessments of spatial neglect was KF-NAP. The detection of spatial neglect through KF-NAP was 93.8% (Line bisection test 53.1, Letter cancellation 53.1%, Albert's test 37.5%). Line bisection test (r=.430), Letter cancellation(r=.641), Albert's test(r=.398) and KF-NAP scores had significant correlation(p<0.05). Conclusion : KF-NAP is higher sensitive in comparison with Pencil-Paper test for detection of spatial neglect as the assessment tool of spatial neglect during activities daily livings of patients and neglect severity could be assessed with KF-NAP. Therefore, KF-NAP is recommended for assessment of spatial neglect.

A Simplified Assessment Method and Application for Consideration of Survivability in Spatial Layout Design at the Early Design Stage of Naval Vessels (함정 초기 설계 단계에서 레이아웃 설계 시 생존성을 고려하기 위한 간이 평가 방법과 애플리케이션)

  • Jung, Jin-Uk;Jeong, Yong-Kuk;Ju, SuHeon;Shin, Jong Gye;Kim, JongChul
    • Journal of the Society of Naval Architects of Korea
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    • v.55 no.1
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    • pp.9-21
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    • 2018
  • Survivability of naval vessels is defined as the ability to perform functions and missions in a combat environment. Survivability has close relationship with the spatial layout of naval vessels. In order to maximize survivability, it must be considered from the early stage of design. However the existing concept of survivability was intended to be applied to unit vessels. So it was not suitable for assessment of spatial layout results at the early stage of design. In this paper, a simplified assessment method which can evaluate the spatial layout considering the survivability in the early stage of design has been proposed. For this, assessment layers were defined on survivability components such as susceptibility, vulnerability, and recoverability. Assessment layers of each component were overlapped to deduce a survivability layer of spatial layout alternatives. In addition, the proposed method and optimization algorithm were used to derive optimal spatial layout alternatives considering survivability.

Development of Spatial Information System for Regional Ground Stability Assessment near Dam area (댐 주변지역 광역적 지반 안정성 평가를 위한 공간 정보시스템 개발)

  • 장범수;이사호;최위찬;최재원;오영철
    • Spatial Information Research
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    • v.9 no.1
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    • pp.125-135
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    • 2001
  • Ground failure such as landslide, rock fall land subsidence by heavy rainfall have damaged to people and property. Especially, the damage to important facility such as dam, bridge, tunnel and industrial complex may be possible. Therefore the ground failure must be assessed and counter plan must be prepared. So, the object of this study is to develop the spatial information system for regional ground stability assessment. For this, the topographic, geologic, soil, forest, land use, rainfall frequency map, and satellite image near 40 dams were collected and constructed to the spatial information system. The spatial information system was developed using Avenue in ArcView 3.2 environment and consists of pull down menus and icons. For application of the spatial information system, regional ground stability was assessed in Andong dam. The assessment was ground failure susceptibility and possibility. The spatial information can be used for regional ground stability assessment, prevention and mitigation of hazard, and management of ground as basic data.

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