• Title/Summary/Keyword: Climate Characteristics

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Study on Sensitivity of different Standardization Methods to Climate Change Vulnerability Index (표준화 방법에 따른 기후변화 취약성 지수의 민감성 연구)

  • Nam, Ki-Pyo;Kim, Cheol-Hee
    • Journal of Environmental Impact Assessment
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    • v.22 no.6
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    • pp.677-693
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    • 2013
  • IPCC showed that calculation of climate vulnerability index requires standardization process of various proxy variables for the estimation of climate exposure, sensitivity, and adaptive capacity. In this study, four different methodologies of standardization methods: Z-score, Rescaling, Ranking, and Distance to the reference country, are employed to evaluate climate vulnerability-VRI (Vulnerability-Resilience Indicator) over Korean peninsula, and the error ranges of VRI, arising from employing the different standardization are estimated. All of proxy variables are provided by CCGIS (Climate Change adaptation toolkit based on GIS) which hosts information on both past and current socio-economic data and climate and environmental IPCC SRES (A2, B1, A1B, A1T, A1FI, and A1 scenarios) climate data for the decades of 2000s, 2020s, 2050s, and 2100s. The results showed that Z-score and Rescaling methods showed statistically undistinguishable results with minor differences of spatial distribution, while Ranking and Distance to the reference country methods showed some possibility to lead the different ranking of VRI among South Korean provinces, depending on the local characteristics and reference province. The resultant VRIs calculated from different standardization methods showed Cronbach's alpha of more than 0.84, indicating that all of different methodologies were overall consistent. Similar horizontal distributions were shown with the same trends: VRI increases as province is close to the coastal region and/or it close toward lower latitude, and decreases as it is close to urbanization area. Other characteristics of the four different standardization are discussed in this study.

Determinant Factors of Rice Farmers' Selection of Adaptation Methods to Climate Change in Eastern Rwanda (동부 르완다 쌀 농업인의 기후변화에 대한 적응 방법 결정 요인)

  • Butera, Tonny;Kim, Tae-Kyun;Choi, Se-Hyun
    • Korean Journal of Organic Agriculture
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    • v.30 no.2
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    • pp.241-253
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    • 2022
  • The negative impact of climate change on the agricultural sector is rapidly increasing, and it is urgent to prepare policies at the government level to mitigate it. In the case of Rwanda's agricultural sector, which lacks the government's budget and farmers' capital, efficient and effective policy implementation is of paramount importance. To this end, rather than establishing related policies in the public sector from the top down, it is necessary to establish a bottom-up customized policy that is reflected in policy establishment by identifying the characteristics and behaviors of farmers who actually participate in adaptation activities. In this study, the effects of farmers' characteristics and farmers' perception status/adaptation status to climate change on the selection of adaptation methods for climate change were analyzed. 357 rice farmers randomly selected from Eastern Rwanda were surveyed to explore the information related to farmers' perception to climate change and adaptation methods as well as basic information of the farm. Research shows that the probability of selecting a variety of adaptation methods rather than not responding to climate change increases the younger the age, the higher the education level, and the easier access to climate information and credit. As a policy proposals, it is judged that public support such as strengthening agricultural technology support services, including more detailed guidance for elderly and low-educated farmers, and improving access to farm loan services by agricultural financial institutions is needed. In addition, it is necessary to adjust the planting time and cultivation method, provide timely information related to climate change, and provide crop variety improvement services to farmers.

Climate Change and Psychological Adaptation: Psychological Response, Adaptation, and Prevention (기후변화와 심리적 적응: 심리적 반응, 적응, 예방)

  • Moon, Sung-Won
    • Journal of Korean Society for Atmospheric Environment
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    • v.32 no.3
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    • pp.237-247
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    • 2016
  • Global climate change is becoming one of the greatest challenges facing humanity. This article proposes a psychological perspective of climate change adaptation. Climate change-related severe adverse weather events may trigger mental health problems, including increased post-traumatic stress disorder (PTSD), depression, anxiety, violence, and even suicide. Forced migration could be considered a coping method for dealing with weather events, but it may also pose a psychological threat. People respond to severe weather events in different ways based on their individual characteristics. Psychological risks from adverse weather events are mediated and moderated by these factors, which are influenced by personal cognition, affect, and motivation. Examinations from a psychological perspective, which have been neglected in the science of climate change thus far, may provide keys to successful adaptation and the prevention of serious psychological problems resulting from the experience of severe weather events. A new prevention strategy has been suggested for coping with climate threats through encouraging attitude change, establishing proactive support systems for vulnerable groups, establishing a PTSD network, and implementing a stress inoculation program.

Uncertainty Characteristics in Future Prediction of Agrometeorological Indicators using a Climatic Water Budget Approach (기후학적 물수지를 적용한 기후변화에 따른 농업기상지표 변동예측의 불확실성)

  • Nam, Won-Ho;Hong, Eun-Mi;Choi, Jin-Yong;Cho, Jaepil;Hayes, Michael J.
    • Journal of The Korean Society of Agricultural Engineers
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    • v.57 no.2
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    • pp.1-13
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    • 2015
  • The Coupled Model Intercomparison Project Phase 5 (CMIP5), coordinated by the World Climate Research Programme in support of the Intergovernmental Panel on Climate Change (IPCC) AR5, is the most recent, provides projections of future climate change using various global climate models under four major greenhouse gas emission scenarios. There is a wide selection of climate models available to provide projections of future climate change. These provide for a wide range of possible outcomes when trying to inform managers about possible climate changes. Hence, future agrometeorological indicators estimation will be much impacted by which global climate model and climate change scenarios are used. Decision makers are increasingly expected to use climate information, but the uncertainties associated with global climate models pose substantial hurdles for agricultural resources planning. Although it is the most reasonable that quantifying of the future uncertainty using climate change scenarios, preliminary analysis using reasonable factors for selecting a subset for decision making are needed. In order to narrow the projections to a handful of models that could be used in a climate change impact study, we could provide effective information for selecting climate model and scenarios for climate change impact assessment using maximum/minimum temperature, precipitation, reference evapotranspiration, and moisture index of nine Representative Concentration Pathways (RCP) scenarios.

An Analysis of Fishermen's Perception to Climate Change in Korea (기후변화에 대한 어업인 인식의 특성 분석)

  • Kim, Bong-Tae;Lee, Sang-Geon;Jeong, Myung-Saeng
    • The Journal of Fisheries Business Administration
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    • v.45 no.3
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    • pp.71-84
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    • 2014
  • This study indicates that 84.5% of fishermen have perceived climate change and 74.9% of fishermen have responded that frequency and intensity of the impacts of climate change are increasing. The results of regression analysis have shown that the level of fishermen experiencing the impacts of climate change differs according to individual's characteristics including age, length of experience, sea area (fishing area) and types of fisheries. About half of the respondents have shown that they are not taking any actions against the effects of climate change. The main reasons are that they either have lack of knowledge on how to respond to the impacts of climate change or have the perception that climate change is irresistible. The majority of respondents have responded that they are not aware of the government's climate change policy and emphasized that it is necessary to have effective countermeasures strengthening the provision of information about climate change policy. The result of perception survey have highlighted that it is essential for the government and the fishermen to share relevant information and to consider method of cooperation.

Trends in climate finance and ODA for global water infrastructure (글로벌 물시장에서의 기후 금융과 ODA자금 동향 조사)

  • Kim, Jakyum;Kim, Seunghyun;Sohn, Jinsik
    • Journal of Korean Society of Water and Wastewater
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    • v.34 no.3
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    • pp.169-182
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    • 2020
  • ODA finance in the water sector has decreased after reaching a peak in 2012 although total ODA commitments have steadily increased according to OECD DAC data. However, climate finance in the water sector has increased so much since 2013 according to 7 MDB Joint report on Climate Finance. Water, especially, in climate change is the main issue for adaptation, and the total finance in the water sector reached 50% of the international public adaptation finance in 2016. However, the procedures for approval and the requirements of the proposals for climate funds are different from those for development finance. Notwithstanding the changes in money flows in the water sector, most korean engineering consulting firms in the water infrastructure area are not ready to win the funds relating to climate change. Therefore, It is important to understand a variety of sources of climate funds, characteristics, funding scale on each purpose and procedures for approval. Korean government needs to provide the firms the opportunities to buildup experiences by getting involved in climate adaptation projects with the financial support for developing PPFs, concept notes, and proposals.

Analysis of Climate Characteristics Observed over the Korean Peninsula for the Estimation of Climate Change Vulnerability Index (기후변화 취약성 지수 산출을 위한 한반도 관측 기후 특성 분석)

  • Nam, Ki-Pyo;Kang, Jeong-Eon;Kim, Cheol-Hee
    • Journal of Environmental Impact Assessment
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    • v.20 no.6
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    • pp.891-905
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    • 2011
  • Climate vulnerability index is usually defined as a function of the climate exposure, sensitivity, and adaptive capacity, which requires adequate selection of proxy variables of each variable. We selected and used 9 proxy variables related to climate exposure in the literature, and diagnosed the adequacy of them for application in Korean peninsula. The selected proxy variables are: four variables from temperature, three from precipitation, one from wind speed, and one from relative humidity. We collected climate data over both previous year (1981~2010) and future climate scenario (A1B scenario of IPCC SERES) for 2020, 2050, and 2100. We introduced the spatial and temporal diagnostic statistical parameters, and evaluated both spatial and time variabilities in the relative scale. Of 9 proxy variables, effective humidity indicated the most sensitive to climate change temporally with the biggest spatial variability, implying a good proxy variable in diagnostics of climate change vulnerability in Korea. The second most sensitive variable is the frequency of strong wind speed with a decreasing trend, suggesting that it should be used carefully or may not be of broad utility as a proxy variable in Korea. The A1B scenario of future climate in 2020, 2050 and 2100 matches well with the extension of linear trend of observed variables during 1981~2010, indicating that, except for strong wind speed, the selected proxy variables can be effectively used in calculating the vulnerability index for both past and future climate over Korea. Other local variabilities for the past and future climate in association with climate exposure variables are also discussed here.

Analysis on the Effects of Building Coverage Ratio and Floor Space Index on Urban Climate (도시의 건폐율 및 용적률이 도시기후에 미치는 영향 분석)

  • Yeo, In-Ae;Yee, Jurng-Jae;Yoon, Seong-Hwan
    • Journal of the Korean Solar Energy Society
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    • v.29 no.3
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    • pp.19-27
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    • 2009
  • In this study, Urban Climate Simulation was performed by 3-Dimensional Urban Canopy Model. The characteristics of urban climate were analyzed combining artificial land coverage, building size, heat production from the air conditioning and topographic conditions as physical variables which affects urban climate characteristics. The results are as follows. (1) The aspects of the urban climatal change is derived to be related to the combination of the building coverage ratio, building height and shading area. According to the building height, the highest temperature was increased by $2.1^{\circ}C$ from 2-story to 5-story building and the absolute humidity by 2.1g/kg maximum and the wind velocity by 1.0m/s was decreased from 2-story to 20-story building. (2) Whole heat generation was influenced by the convective sensible heat at the lower building height and by the artificial heat generation at the higher one over 20-story building influence to some extent of the building coverage ratio. The effect of the altitude is not more considerable than the other variables as below $1^{\circ}C$ of the air temperature. In the last, deriving the combination of building coverage and building height is needed to obtain effectiveness of the urban built environment planning at the point of the urban climate. These simulation results need to be constructed as DB which shows urban quantitative thermal characters by the urban physical structure. These can be quantitative base for suggesting combinations of the building and urban planning features at the point of the desirable urban thermal environment as well as analyzing urban climate phenomenon.

A Comparative Study of World Wide Views on Climate and Energy 2015 (유엔기후변화협상에 관한 세계시민회의 결과의 국제비교)

  • Kim, Jik-Soo;Lee, Young Hee
    • Journal of Science and Technology Studies
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    • v.15 no.2
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    • pp.65-97
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    • 2015
  • This essay aims to investigate the characteristics of the views of citizen participants of World Wide Views on Climate and Energy which was organized internationally targeting global policy making in Paris at COP21. It also analyzes the views of Korean citizen participants on climate change from the international comparative perspective. For this purpose, we try to outline the results of the consultations which offer 29 issues categorized into five sessions, such as importance of tackling climate change, tools to tackle climate change, UN negotiations and national commitments, fairness and distribution of efforts, making and keeping climate promises. As a result, we come to show some patterns and characteristics of the views of citizen participants in global and national context. Finally, we discuss some policy and theoretical implications of our findings regarding the future of international convention for climate change and of global citizenship formation.