• Title/Summary/Keyword: climate environment change

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Comparative Analysis of Scenarios for Reducing GHG Emissions in Korea by 2050 Using the Low Carbon Path Calculator (저탄소 경로 모형을 활용한 2050년 한국의 온실가스 감축 시나리오 비교 분석)

  • Park, Nyun-Bae;Yoo, Jung-Hwa;Jo, Mi-Hyun;Yun, Seong-Gwon;Jeon, Eui Chan
    • Journal of Korean Society for Atmospheric Environment
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    • v.28 no.5
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    • pp.556-570
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    • 2012
  • The Low Carbon Path Calculator is an excel-based model to project greenhouse gas emissions from 2009 to 2050, which is based on the 2050 Pathways Calculator developed by the UK Department of Energy and Climate Change (DECC). Scenarios are developed to reduce GHG emissions in Korea at 50% based on 2005 levels by 2050 using a Low Carbon Path Calculator. They were classified in four different cases, which are high renewable, high nuclear, high CCS and mixed option scenarios. The objectives of this study are to compare scenarios in terms of GHG emissions, final energy, primary energy and electricity generation and examine the usefulness of that model in terms of identifying pathways towards a low carbon emission society. This model will enhance the understanding of the pathways toward a low carbon society and the level of the climate change policy for policy makers, stakeholders, and the public. This study can be considered as a reference for developing strategies in reducing GHG emissions in the long term.

An Analysis of Impacts of Climate Change on Rice Damage Occurrence by Insect Pests and Disease (기후변화가 벼 병해충 피해면적 발생에 미치는 영향분석)

  • Jeong, Hak-Kyun;Kim, Chang-Gil;Moon, Dong-Hyun
    • Korean Journal of Environmental Agriculture
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    • v.33 no.1
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    • pp.52-56
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    • 2014
  • BACKGROUND: It is known that impacts of climate change on damage occurrence by insect pests and diseases are increasing. The negative effects of climate change on production will threaten our food security. It is needed that on the basis of analysis of the impacts, proper strategies in response to climate change are developed. METHODS AND RESULTS: The objective of this paper is to estimate impacts of climate change on rice damage occurrence by insect pests and diseases, using the panal model which analyzes both cross-section data and time series data. The result of an analysis on impacts of climate change on rice damage occurrence by pest insect and disease showed that the damage occurrence by Rice leaf roller and Rice water weevil increased if temperature increased, and damage occurrence by Stripe, Sheath blight, and Leaf Blast increased if precipitation(or amount of sunshine) increased(or decreased). CONCLUSION: Adaptation strategies, supplying weather forecasting information by region, developing systematical strategies for prevention of damage occurrence by pest insect and disease, analyzing the factors of damage occurrence by unexpected pest insect and disease, enforcing international cooperation for prevention of damage occurrence are needed to minimize the impacts of damage occurrence on rice production.

Case Study on Comparison of the Results of Climate Change Prospect and Vulnerability Assessment and the Awareness of Those by Public Officials and Citizens at Yeongwol County (기초지자체의 기후변화 전망 및 취약성 평가 결과와 공무원·시민의 인식도 비교분석 연구 - 영월군 사례를 중심으로 -)

  • Kim, Sangsu;Lee, Chungkook;Choi, Yeonho;Kim, Jaeyoon;Shin, gwangsu;Seo, Seongjik
    • Journal of Climate Change Research
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    • v.6 no.2
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    • pp.133-142
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    • 2015
  • The purpose of this study was to compare the results of climate change prospect and vulnerability assessment and the awareness of those by public officials and citizens at Yeongwol county, Gangwon province where experiencing the most climate change vulnerability. Data of 12 meteorological categories such as mean temperature at Yeongwol weather station from 1995 to 2013 were analyzed. Climate change vulnerability was assessed with 29 sub-categories in 6 categories (health, emergency/disaster, agriculture, forestry, water management, ecosystem) of National Institute of Environment Research's LCCGIS (2013). The awareness of climate change and its vulnerability was surveyed with 154 citizens and 130 officials at Yeoungwol county. The climate change prospect and its vulnerability was similar to the actual climate change effect. However, the awareness of climate change was different between some officials and citizens. The results of this study would be base data for the Yeoungwol county's future climate change adaptation poicy making.

i-Tree Canopy-based Decision Support Method for Establishing Climate Change Adaptive Urban Forests (기후변화적응형 도시림 조성을 위한 i-Tree Canopy 기반 의사결정지원 방안)

  • Tae Han Kim;Jae Young Lee;Chang Gil Song;Ji Eun Oh
    • Journal of the Semiconductor & Display Technology
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    • v.23 no.1
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    • pp.12-18
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    • 2024
  • The accelerated pace of climate crisis due to continuous industrialization and greenhouse gas emissions necessitates sustainable solutions that simultaneously address mitigation and adaptation to climate change. Naturebased Solutions (NbS) have gained prominence as viable approaches, with Green Infrastructure being a representative NbS. Green Infrastructure involves securing green spaces within urban areas, providing diverse climate adaptation functions such as removal of various air pollutants, carbon sequestration, and isolation. The proliferation of Green Infrastructure is influenced by the quantification of improvement effects related to various projects. To support decision-making by assessing the climate vulnerability of Green Infrastructure, the U.S. Department of Agriculture (USDA) has developed i-Tree Tools. This study proposes a comprehensive evaluation approach for climate change adaptation types by quantifying the climate adaptation performance of urban Green Infrastructure. Using i-Tree Canopy, the analysis focuses on five urban green spaces covering more than 30 hectares, considering the tree ratio relative to the total area. The evaluation encompasses aspects of thermal environment, aquatic environment, and atmospheric environment to assess the overall eco-friendliness in terms of climate change adaptation. The results indicate that an increase in the tree ratio correlates with improved eco-friendliness in terms of thermal, aquatic, and atmospheric environments. In particular, it is necessary to prioritize consideration of the water environment sector in order to realize climate change adaptive green infrastructure, such as increasing green space in urban areas, as it has been confirmed that four out of five target sites are specialized in improving the water environment.

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Vulnerability Assessment of Forest Distribution by the Climate Change Scenarios (기후변화 시나리오에 따른 산림분포 취약성 평가)

  • Lee, Sangchul;Choi, Sungho;Lee, Woo-Kyun;Park, Taejin;Oh, Suhyun;Kim, Su-Na
    • Journal of Korean Society of Forest Science
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    • v.100 no.2
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    • pp.256-265
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    • 2011
  • This study was aiming at assessing the vulnerability of forest distribution by the A2 and B1 climate change scenarios of Intergovernmental Panel on Climate Change (IPCC). The vulnerability of forest distribution was assessed using its sensitivity and adaptation to climate change with the help of the simulations of Korean-specific forest distribution model, so-called the Thermal Analogy Group (TAG), and the Plant Functional Type (PFT) defined in the HyTAG (Hydrological and Thermal Analogy Groups) model. As a result, the vulnerable area occupied 30.78% and 2.81% of Korea in A2 and B1 scenario, respectively. When it comes to the administrative districts, Pusan in A2 and Daegu in B1 appeared the most vulnerable area. This study would be employed into preparation of adaptative measures for forest in future in terms of using climate change scenarios reflecting different future development conditions.

Health Vulnerability Assessment for PM10 due to Climate Change in Incheon (인천지역 기후변화에 따른 미세먼지의 건강 취약성 평가)

  • Yoo, Heejong;Kim, Jongkon;Shin, Jaewon;Kim, Youngju;Min, Sungeun;Jegal, Daesung;Bang, Kiin;Lee, Sungmo
    • Journal of Environmental Health Sciences
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    • v.43 no.3
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    • pp.240-246
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    • 2017
  • Objectives: This study was conducted to evaluate the vulnerability of the human health sector to $PM_{10}$ due to climate change in Incheon over the period of 2005-2014. Methods: Vulnerability to $PM_{10}$ consists of the three categories of climate exposure, sensitivity, and adaptive capacity. The indexes for climate exposure and sensitivity indicate positive effects, while adaptive capacity shows a negative effect on vulnerability to $PM_{10}$. The variables in each category were standardized by the rescaling method, and respective relative regional vulnerability was analyzed through the vulnerability index calculation formula of the Intergovernmental Panel on Climate Change. Results: Regions with a high exposure index were the western and northern urban areas with industrial complexes adjacent to a highway, including Bupyong-gu and Seo-gu. Major factors determining the climate exposure index were the $PM_{10}$ concentration, days of $PM_{10}$ >= $100{\mu}g/m^3$, and $PM_{10}$ emissions. The regions showing a high sensitivity index were urban regions with high populations; these commonly had a high mortality rate for related diseases and vulnerable populations. Conclusions: This study is able to support regionally adjusted adaptation policies and the quantitative background of policy priority since it provides information on the regional health vulnerability to $PM_{10}$ due to climate change in Incheon.

Development of GIS-based Integrated DB Management System for the Analysis of Climate Environment Change (기후.환경 변화 분석을 위한 GIS기반의 통합DB 관리시스템 개발)

  • Kim, Na-Young;Kim, Kye-Hyun;Park, Yong-Gil
    • Spatial Information Research
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    • v.19 no.6
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    • pp.101-109
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    • 2011
  • Climate change affects all components of the global environment system and, in turn, all components mutually interact and affect climate change through non-linear feedback processes. It is thus necessary to study the interaction between the climate and the environment, in order to comprehensively understand and predict climate and environment change. However, current relevant systems are limited to particular areas and do not sufficiently support the mutual linking of research studies. Therefore, this study develops prototype a GIS based integrated DB management system for supporting the climate and environment data storage, management and distribution. The integrated DB management system was developed using VB.NET languages and ArcObjects component. First, considering the demands of climate environment experts, the study areas are selected and the methods of data management and utilization were defined. In addition, a location-based GIS DB was created in order to aid in understanding climate change through visual representation. Finally, the integrated DB management system provides an efficient data management and distribution data and it creates synergistic effect on climate and environment study. It also contributes significantly to the comprehensive diagnosis and prediction of climate change and environment systems.

Current Issues on Climate Change and Water (기후변화의 쟁점과 물)

  • Yun, Zuwhan
    • Journal of Korean Society on Water Environment
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    • v.25 no.5
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    • pp.641-650
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    • 2009
  • The IPCC's standing on the anthropogenic warming is discussed in this article. The differences between the climate alarmist and skeptics have been addressed in terms of scientific and policy stand point of view. The political and economical significances of climate change have been discussed, too. Although atmospheric temperature and rainfall precipitation are two most important factors in the climate change, most of the recent attentions have drawn on mainly temperature and $CO_2$ issue. In spite of argues on the uncertainty in anthropogenic warming related to $CO_2$, the inevitable climate change should correspondingly change the humanity in near feature.

Analysis of NO2 over the Korean Peninsula from Ozone Monitoring Instrument Satellite Measurements (위성 (OMI)을 활용한 한반도 지역 NO2 분석)

  • Kim, Deok-Rae;Choi, Won-Jun;Lee, Joon-Suk;Kim, Seung-Yeon;Hong, Jun-Suk;Song, Chang-Keun;Lee, Jae-Bum;Hong, You-Deog;Lee, Suk-Jo
    • Journal of Korean Society for Atmospheric Environment
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    • v.28 no.3
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    • pp.249-260
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    • 2012
  • Monitoring of climate change and atmospheric environment by satellite measurements has been increased in recent years. In this study, nitrogen dioxide ($NO_2$) measurements from Ozone Monitoring Instrument (OMI) were compared with surface measurements over the Korean peninsula. $NO_2$ from OMI measurements showed high values and also showed seasonal variations such as high concentration in winter and low in summer over metropolitan areas while $NO_2$ concentration at national background station was low and did not clearly show seasonal variations. Surface measurements showed similar temporal and spatial variations to those of satellite measurement. The comparison between satellite measurements and surface measurements showed that the correlation between them was higher in urban area (r=0.64 at Seoul and r=0.63 at Daegu) than in national background stations (r=0.37 at Jeju) because the concentration in urban area was relatively high so that the variation of $NO_2$ concentration could be detected better than at national background stations by satellite. Satellite can effectively measure the emission and transport of pollutants with no limitations in spatial coverage.