• 제목/요약/키워드: change analysis

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Spatial Relationship of Suburb, Road and River in respect to Forest Canopy Density Change Using GIS and RS

  • ;김계현
    • 한국공간정보시스템학회:학술대회논문집
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    • 한국공간정보시스템학회 2005년도 추계학술대회
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    • pp.257-270
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    • 2005
  • Many studies states that improperly uprising of infrastructure may cause leading the forest degradation and canopy reduction in many tropical forest of Asian countries. Other studies revealed that habitat destruction and fragmentation, edge effects, exotic species invasions, pollution are provoked by roads. Similarly, environmental effects of road construction in forests are problematic. Similarly, many researches have been indicated that roads have a far greater impact on forests than simply allowing greater access for human use. Moreover, people using river as means of transportation hence illegal logging and felling cause canopy depletion in many countries. Therefore, it is important to comprehend the study about spatial relation of road, river and suburb followed by temporal change of forest canopy phenomena. This study also tried to examine the effect of road, river and suburb in forest canopy density change of Terai forest of Nepal from you 1988 to 2001. So, Landsat TM88, 92 and 001 and FCD (Forest Canopy Density) mapper were used to perform the spatial .elation of canopy density change. ILWIS (Integrated Land and Water Information System) which is GIS software and compatible with remote sensing data was used to execute analysis and visualize the results. Study found that influence of distance to suburb and river had statistically significance influenced in canopy change. Though road also influenced canopy density much but didn't show a statistical relation. It can be concluded from this research that understanding of spatial relation of factors respect with canopy change is quite complex phenomena unless detail analysis of surrounding environment. Hence, it is better to carry out comprehensive analysis with other additional factors such as biophysical, anthropogenic, social, and institutional factors for proper approach of their effect on canopy change.

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원격탐사 자료를 이용한 지형변화 관측을 위한 변화벡터법 적용연구 (Application of Change Vector Analysis for Monitoring Geomorphological Change Using Remote Sensing Data)

  • 원중선;유홍룡
    • 자원환경지질
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    • 제28권4호
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    • pp.405-414
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    • 1995
  • LANDSAT TM 자료를 이용한 지형변화를 관측하는데 알맞은 알고리즘에 대한 고찰과 이 알고리즘을 1986년 4월 15일과 1992년 9월 22일 경기만에서 얻어진 LANDSAT TM 자료에 적용하여 타당성을 시험하였다. 이 알고리즘은 변화벡터분석법과 tasseled cap 변환을 이용한 방법이다. 변화벡터분석법은 영상자료간의 변화를 관측하는데는 우수하지만 그 변화벡터의 수가 증가함에 따라 효율이 감소하는 단점이 있다. 이와 같은 단점을 보완하기 위해 tasseled cap 변환을 이용함으로서 원래 6개 밴드의 LANDSAT TM 자료를 두 개의 밴드 즉 Brightness와 Greenness로 줄일 수 있게 된다. 시험적용 결과 이 알고리즘은 해안선 일대에서의 대규모 지형변화뿐만 아니라 육안관측으로는 어려운 미세한 변화까지도 관측 가능한 것으로 나타났다. 그러나 본 연구결과의 변화벡터 영상에서는 인공적인 변화에 더 민감한 것으로 나타났는데 이는 본 연구에 사용된 두 LANDSAT TM 자료가 얻어진 시간 간격이 지질학적 작용에 의한 변화가 나타나기에는 비교적 짧기 때문인 것으로 사료된다.

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중년여성의 운동행동변화단계에 따른 변화과정, 의사결정균형 및 자기효능감 (Process of Change, Decisional Balance and Self Efficacy Corresponding to Stages of Change in Exercise Behaviors in Middle Aged Women)

  • 이윤미
    • 대한간호학회지
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    • 제34권2호
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    • pp.362-371
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    • 2004
  • Purpose: The study was performed to identify the process of change, decisional balance and self-efficacy corresponding to the stage of exercise behavior change based on a Transtheoretical Model in middle aged women. Method: The subjects consisted of 317 women by convenience sampling residing in city B. The collected data were analyzed using one-way ANOVA, Scheffe test, and Discriminant analysis by SPSS/WIN program. Result: The subjects were distributed in each stage of change of exercise behaviors: 53 subjects (16.7%) in the precontemplation stage, 86 subjects (27.1%) in the contemplation stage, 88 subjects (27.8%) in the preparation stage, 51 subjects (16.1%) in the action stage and 39 subjects(12.3%) in the maintenance stage. Analysis of variance showed that consciousness raising (F=24.96, p=.00), environmental reevaluation (F=7.l3, p=.00), self reevaluation (F=19.47, p=.00), dramatic relief (F=15.22, p=.00), social liberation (F=4.26, p=.00), counter conditioning (F=26.44, p=.00), a helping relationship (F=13.l7, p=.00), reinforcement management (F=21.25, p=.00), self liberation (F=27.70, p=.00), stimulus control (F=13.49, p=.00), pros (F=14.40, p=.00) and self-efficacy (F=39.9l, p=.00) were significantly associated with the stages of change of exercise behaviors. Through discriminant analysis, it was found that ‘stimulus control’ was the most influential variable in discriminating the five stages of change. Conclusion: This study can provide the basis of a staged matching exercise program using TTM for more effective and useful intervention.

최근 5년간 농업부문 온실가스 산정방법 개선과 그에 따른 배출량 차이 분석 (The Analysis of Differences by Improving GHG Emission Estimation Methodology for Agricultural Sector in Recent 5 Years)

  • 정현철;최은정;이종식;김건엽;이선일
    • 한국기후변화학회지
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    • 제8권4호
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    • pp.347-355
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    • 2017
  • Methane and nitrous oxide are main greenhouse gases from agricultural system and their global warming potential are 25 and 258 times stronger than that of $CO_2$, respectively. In 2016, the emission was $21,290Gg\;tone\;CO_2-eq$. which was emitted from agriculture sector and about 3.1% of total GHG emission of Korea. Those guidelines that were published by IPCC have methodology for GHGs emission calculation as well as emission factor and so on. For recent 5 years, GHGs emissions in Korea have calculated by MRV which has been improved every year based on IPCC guidelines. Analysis as estimating method improvement showed that the methane emissions from rice cultivation were the lowest on 2012 methodology, and the highest on 2014 methodology. On the other hand, the emissions of agricultural soils were the lowest on 2015 methodology and the highest on 2012 methodology. Total emissions from agriculture sector were the lowest on 2015 methodology and the highest on 2012 methodology. Compared with 2016 methodology, the GHGs emitted as few as $-1,865Gg\;tone\;CO_2-eq$ and as many as $2,717Gg\;tone\;CO_2-eq$. GHGs emissions can vary greatly, depending on how to use the emission factor and activity data. Therefore, it need constantly a detailed analysis for methodology and GHGs emission in the future.

기후변화·해수면 상승에 따른 농업부문 통합평가 사례연구 비교분석 및 개선방안 (Reviewing of Integrated Assessment of the Impacts of Climate Change and Sea-Level Rise on Agricultural Sector)

  • 안소은;오서연
    • 한국기후변화학회지
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    • 제7권3호
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    • pp.299-314
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    • 2016
  • The aim of this paper is to review integrated assessment studies conducted to address the impacts of climate change sea-level rise on agricultural sector and to derive suggestions for improving the integrated assessment process to assist decision-makers in establishing climate change adaptation policy. We collect integrated assessment studies which are based on the impact-pathway analysis, compare their step-by-step procedures and identify main factors addressed in each step. The assessment process is typically carried out in the sequence of scenario development, determination of assessment scope, physical impact assessment, economic analysis and synthesis of the outcomes from each step. We identify two types of integrated assessment. The first one examines the impacts of changes in temperature and/or precipitation on the crop-cultivation patterns and/or agricultural productivity and resulting economic effects on agricultural sector. The other investigates the impacts of sea-level rise on land use/coverage and resulting economic damages in terms of land-value loss where the effects on agriculture is treated as one sector among others. To enhance integrated assessment, we suggest that 1) scenarios need to incorporate the effects of climate change and sea-level rise simultaneously, 2) scope of the assessment needs to be extended to include ecosystem services as well as crop production, 3) social and cultural aspects need to be considered in addition to economic analysis, and 4) synthesis of the outcomes from each step should be able to combine quantitative as well as qualitative information.

The analysis of Lower Limb Muscle Activity and Motion Analysis according to Normal Foot and Flatfoot during Walking

  • Yoon, Jung-Gyu;Yoo, Kyung-Tae;Lee, Ji-Hong;Park, Jae-Min;Min, Kyung-Ok;Choi, Jung-Hyun
    • 국제물리치료학회지
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    • 제3권1호
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    • pp.364-369
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    • 2012
  • The purpose of this study was to analyze lower limb muscle activity and 3D motion analysis according to change foot arch height during walking. We selected 9 young and healthy people who have been normal foot. And we selected 7 young and healthy people who have been flatfoot. So, people were divided into 2 groups and walked platform during 2 minutes twice for checked by 3D motion analysis. These data were characterized by EMG measurements of three muscles( tibialis anterior, medial and lateral gastrocnemius) while they were walking. The collected data were analyzed by Independent t test using the SPSS statistics program(Ver 12.0). In foot arch change, there were no significant difference in three muscles 3D motion analysis also found that there were no significant difference in joint angles. In this study was to analyze lower limb muscle activity and 3D motion analysis according to change foot arch, but there were no significant difference in 6 muscles neither joint angles.

격자단위 분석기법을 적용한 도시 기후변화 재해취약성분석 (Grid Unit Based Analysis of Climate Change Driven Disaster Vulnerability in Urban Area)

  • 홍재주;임호종;함영한;이병재
    • Spatial Information Research
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    • 제23권6호
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    • pp.67-75
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    • 2015
  • 오늘날 인간의 정주공간이 도시로 집중화되면서 도시 생활공간의 복잡화, 다양화, 고도화 되는 상황을 고려한 도시계획 관리기법의 개발이 요구되고 있는 실정이다. 특히, 대형화 다양화되고 있는 기후변화 재해에 효율적으로 대응하기 위해서는 도시의 재해 취약성에 대한 분석에 근거한 토지이용, 기반시설 등을 계획하는 도시계획이 필요하다. 이러한 관점에서 도입된 도시 기후변화 재해취약성 분석(UC-VAS)제도는 현재 집계구단위 분석방식으로 운영됨으로 도시계획활용을 위한 세부적인 구역검토가 어려운 실정이다. 이에 분석단위를 격자방식으로 변경하고 2개 지자체를 대상으로 분석하여 해당결과를 비교검토하였다. 분석결과 집계구 단위보다 세부적인 결과도출이 가능하며, 항공영상과의 현황비교결과 세부적인 구역설정이 가능한 결과를 마련할 수 있었다. 이와 같은 비교검토결과와 더불어 분석지표에 따라 격자단위 결과 활용에 문제점이 발생됨을 발견함으로써 향후 도시기후변화 재해취약성 분석제도의 과학성과 객관성을 추가 확보하는 전문적인 방안을 제시함으로써 제도운영의 효율성을 기대한다.

기후변화 적응대책 우선순위 선정을 위한 방법론 분석 (Analysis of Methodologies for Prioritizing Climate Change Adaptation Measures)

  • 채여라;조현주
    • 환경정책연구
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    • 제12권4호
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    • pp.23-44
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    • 2013
  • 기후변화에 효율적으로 대응하기 위해서는 막대한 예산이 소요되는 적응대책에 대한 우선순위를 선정하고 이에 따라 시행하는 일이 매우 중요하다. 본 연구의 목적은 적응대책의 우선순위 평가 방법론을 분석해 현재 가용한 정보의 범위에서 기후변화의 특수성을 반영해 적용 가능한 우선순위 평가 방법론을 제안하는 것이다. 우선순위 결정을 위한 의사결정 방법론은 다기준 분석 등의 정성적 분석법과 비용편익 분석 등의 정량적 평가 방법론이 있다. 각 방법론별로 서로 장점과 단점이 있으며 필요 자료의 수준도 상이하다. 정책평가를 위한 지표는 정책의 효율성, 경제성, 정치성 등을 평가하는 많은 지표가 존재한다. 본 논문에서는 일반 정책평가 지표와 기후변화의 특수성을 고려해 기후변화 적응대책의 우선순위 평가 지표로 크게 기후변화 위험성, 정책성, 효율성을 선정하였다. 기후변화 위험성의 세부 지표로는 피해발생시점, 피해발생 가능성, 피해 강도가 포함되며, 효율성으로는 경제적 효율성, 부수효과, 파급효과로 대표될 수 있다. 정책성의 평가 지표는 형평성, 기존 정책과의 부합성, 민주성으로 구성된다.

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날씨 및 기온에 따른 의복착용과 영향요인 (Clothing Wearing and Influencing Factors According to Weather and Temperature)

  • 지혜경;김현숙
    • 한국의류학회지
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    • 제34권11호
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    • pp.1900-1911
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    • 2010
  • This study focuses on clothing as one of the most seasonal products and investigates consumer behavior related to climate change adaptation. This study addressed four objectives: (1) to identify the clothing behavior of consumers for the adaptation to climate change; (2) to identify the effects of fashion involvement and climate sensitivity on clothing attitude for the adaptation to climate change; (3) to identify the effect of clothing purchase time on climate sensitivity and clothing attitude for the adaptation to climate change; and (4) to identify the effect of consumer demographics on climate sensitivity and clothing attitude for the adaptation to climate change. A survey questionnaire was developed and implemented to collect data for measuring clothing involvement, fashion involvement, and climate sensitivity. In addition, clothing involvement, clothing assortment needs, and clothing worn for the adaptation to climate change were measured. A total of 349 responses were analyzed by t-test, ANOVA and path analysis with SPSS18.0. The results of the analysis are as follows. Changes in temperature were considered more important than changes in weather for the functional needs of clothing, purchase needs, and assortment items needs. The assortment items wearing for the adaptation to climate change varied depending on the temperature and weather. Fashion involvement directly influenced clothing assortment needs and indirectly influenced the clothing worn for the adaptation to climate change. In terms of clothing purchase time, those purchasing clothing before the season begins, tended to have a high fashion involvement and clothing attitude for the adaptation to climate change. Those in their twenties and single, tended to be more sensitive to climate change. This study also discusses the implications for merchandising strategies.

산업장 남성근로자의 금연변화단계별 변화과정, 자기효능감과 의사결정 균형에 관한 연구 (Process of Change, Self Efficacy and Decisional Balance Corresponding to Stage of Change in Smoking Cessation in Industrial Workers)

  • 이윤미;박남희;서지민
    • 성인간호학회지
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    • 제15권3호
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    • pp.483-492
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    • 2003
  • Purpose: The study was performed to identify the process of change, decisional balance and self-efficacy corresponding to the stage of smoking cessation behavior based on Transtheoretical Model in industrial workers. Method: A convenience sample of 146 industrial workers except for the never smokers, were recruited at a H industry in Ulsan. Data were collected from February 1 to 28, 2002. The research instruments were Stages of Change of Smoking Cessation Measure(DiClemente et al, 1991), Process of change(Prochaska, 1988), Smoking Abstinence Self Efficacy (SASE: DiClemente et al, 1985) and Decisional balance(SDB; Kim, 1999). Result: The results of this study were as follows; 1. The subjects were distributed in each stage of smoking cessation change: There were 64 subjects (43.0%) in the precontemplation stage, 35 subjects(23.5%) in the contemplation stage, 28 subjects(18.8%) in the preparation stage, 14 subjects(10.1%) in the action stage and 7 subjects(4.7%) in the maintenance stage. 2. Analysis of variance showed that experiental process(F=2.808, p=.042), behavioral process (F=4.567, p=.004) self-efficacy(F=9.809, p=.000), pros(F=11.107, p=.000), cons(F=6.686, p=.000), pros- cons(F=3.446, p=.018) were significantly associated with the stages of smoking cessation change. 3. Through discriminant analysis, it was found that 'PROS' was the most influential variable in discriminating the four stages of change. Conclusion: This study can provide the basis of staged matching smoking cessation program using TTM for more effective and useful intervention.

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