• Journal of the East Asian Society of Dietary Life
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• v.24 no.3
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• pp.432-439
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• 2014

This study investigated the perception of employees in restaurants located in Seoul concerning climate change, food safety against climate change and performance of food safety management. The survey was administered to 535 respondents from June 10~13, 2013. Exactly 52.2% of respondents answered that knew of climate change, whereas 7.3% of respondents answered that they didn't know about climate change. 86.6% of respondents recognized that climate change affects food safety. Among food safety management performance, the highest score was observed for thoroughly cooked foods (more than 1 min at $74^{\circ}C$ as internal temperature of foods). For importance of role of operator, respondents recognized that 'confirming food safety guideline' and 'cleaning and disinfecting environment' were important. For 'whether have you seen the food safety guideline against climate change', 32.5% said 'yes' while 67.3% answered 'no' or 'don't know'. Based on these results, employees in restaurants generally recognize climate change and its relationship with food safety. However, food safety education and related guidelines need to be improved to provide related information.

• Journal of Korean Society on Water Environment
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• v.25 no.6
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• pp.863-871
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• 2009

For the assessment of climate change impacts on river flow condition, CGCM 3.1 T63 is selected as future climate information. The projections come from CGCM used to simulate the GHG emission scenario known as A2. Air temperature and precipitation information from the GCM simulations are converted to regional scale data using the statistical downscaling method known as MSPG. Downscaled climate data from GCM are then used as the input data for the modified TANK model to generate regional runoff estimates for 44 river locations in Nakdong river basin. Climate change is expected to reduce the reliability of water supplies in the period of 2021~2030. In the period of 2051~2060, stream flow is expected to be reduced in spring season and increased in summer season. However, it should be noted that there are a lot of uncertainties in such multiple-step analysis used to convert climate information from GCM-based future climate projections into hydrologic information.

• Journal of Korean Society for Geospatial Information Science
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• v.25 no.1
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• pp.3-8
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• 2017

In this study future wind resource maps have been produced under climate change scenario using ensemble regional climate model weather research and forecasting(WRF) for the period from 2045 to 2054(mid 21st century). Then various spatiotemporal analysis has been conducted in terms of monthly and diurnal. As a result, monthly variation(monsoon circulation) was larger than diurnal variation(land-sea circulation) throughout the South Korea. Strong wind area with high wind power energy was varied on months and regions. During whole years, strong wind with high wind resource was pronounced at cold(warm) months in particular Gangwon mountainous and coastal areas(southwestern coastal area) driven by strong northwesterly(southwesterly). Projected strong and weak wind were presented in January and September, respectively. Diurnal variation were large over inland and mountainous area while coastal area were small. This new monthly and diurnal variation would be useful to high resource area analysis and long-term operation of wind power according to wind variability in future.

• Journal of the Korean Wood Science and Technology
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• v.42 no.6
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• pp.732-739
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• 2014

This research was performed to investigate the effect of recent climate changes on wood decay hazard index (Scheffer index) in Korea. The index was determined using a climate data of 58 different locations obtained from the website of Korea Meteorological Administration (KMA), and the wood decay hazard index was determined at the intervals of 10 years. Most of regions in Korea except Juju island showed wood decay hazard index values between 35 and 65, considered to be moderate decay hazard zones. But in recent 10 years (2003~2012), the wood decay hazard index was rapidly increased, resulting in showing many high decay hazard regions. The trend may be explained by the in crease of temperature and precipitation. The recent climate change of Korea turning into the weather of subtropical region may explain the increase of wood decay hazard index.

• Journal of Climate Change Research
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• v.7 no.4
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• pp.433-442
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• 2016

In this study, we examine future changes in surface radiation associated with cloud amount and aerosol emission over East Asia. Data in this study is HadGEM2-CC (Hadley Centre Global Environmental Model version 2, Carbon Cycle) simulations of the Representative Concentration Pathways (RCPs) 2.6/4.5/8.5. Results show that temperature and precipitation increase with rising of the atmosphere $CO_2$. At the end of $21^{st}$ century (2070~2099) relative to the end of $20^{st}$ century (1981~2005), changes in temperature and precipitation rate are expected to increase by $+1.85^{\circ}C/+6.6%$ for RCP2.6, $+3.09^{\circ}C/+8.5%$ for RCP4.5, $+5.49^{\circ}C/10%$ for RCP8.5. The warming results from increasing Net Down Surface Long Wave Radiation Flux (LW) and Net Down Surface Short Wave Radiation Flux (SW) as well. SW change increases mainly from reduced total Aerosol Optical Depth (AOD) and low-level cloud amount. LW change is associated with increasing of atmospheric $CO_2$ and total cloud amount, since increasing cloud amounts are related to absorb LW radiation and remit the energy toward the surface. The enhancement of precipitation is attributed by increasing of high-level cloud amount. Such climate conditions are favorable for vegetation growth and extension. Expansion of C3 grass and shrub is distinct over East Asia, inducing large latent heat flux increment.

• Journal of Korean Society of Disaster and Security
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• v.13 no.4
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• pp.93-104
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• 2020

Climate change has emerged as a social issue, and efforts have been made to overcome it in various ways. However, climate change due to global warming is likely to accelerate further than we expected, and the associated damage is also likely to increase. This tendency is expected to continue in the future, leading to difficulties for the existing water resource management system based on historical data. The precipitation in 2020 caused property damage and loss of life due to the extreme rainfall exceeding the design rainfall with the very unusual prolonged rainy days. With this 2020 flood, we should no longer be passive in managing flood risk due to uncertainties in climate change.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.386-386
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• 2021

대기 중 온실가스 농도는 인간의 인위적 활동에 의해 증가하고 있으며, 이로 인하여 발생하는 기후변화는 극한 수문 사상에 상당한 영향을 미치고 있다. 특히, 기후변화로 인한 강수 특성의 변화는 홍수, 가뭄, 태풍 등과 같은 극한사상의 변화로 이어지며, 급격한 도시화와 복잡한 사회기반시설물 등과 맞물려 더욱 취약한 홍수위험 문제로 대두된다. 기후변화에 따른 미래의 불확실한 변화에 적응하기 위하여 다양한 기후모델들이 개발되었고, 기후변화와 관련된 많은 응용 연구들이 기후모델에서 모의된 자료를 기반으로 미래를 전망하고 있다. IPCC (Intergovernmental Panel on Climate Change) 제6차 평가보고서(The 6th Assessment Report: AR6)에서는 사회경제 구조의 변화를 반영한 공통사회경제경로 시나리오(Shared Socioeconomic Pathways, SSP) 개념을 도입하였다. SSP 시나리오는 사회경제 변화를 기준으로 기후변화에 대한 완화와 노력에 따라 5개의 시나리오로 구별된다. 기상청 기후정보포털(http://www.climate.go.kr/)에서는 4개 조합의 시나리오(SSP1-RCP2.6, SSP2-RCP4.5, SSP3-RCP7.0, SSP5-RCP8.5) 결과가 제공된다. 자료는 동아시아 지역에 대해 생산한 자료로 25km의 공간해상도를 가지고 있으며, 현재모의기간(1979-2014, S_HIST)과 미래시나리오기간(2015-2020, S_SSP)으로 구분된다. 본 연구에서는 전술한 SSP-RCP 시나리오 조합 중 SSP1-RCP2.6, SSP5-RCP8.5 조합을 이용하여 광주지역 극한강우의 미래 변화를 분석하였다. 시나리오 기반 강우자료의 통계적 특성 분석을 위해 연최대 자료를 추출하여 경향성 및 변동성 분석을 수행하였고, 광주지역 강우 자료에 내재된 특성 변화를 정량적으로 분석하였다.

• Korean Journal of Agricultural and Forest Meteorology
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• v.13 no.4
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• pp.192-203
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• 2011

The CERES-Barley crop simulation model was used to assess the impacts of climate change on the potential yield of winter naked barley in Korea. Fifty six sites over the southern part of the Korean Peninsula were selected to compare the climate change impacts in various climatic conditions. Based on the A1B climate change scenarios of Korea, the present climatological normal (1971-2000) and the three future ones (2011-2040, 2041-2070, and 2071-2100) were considered in this study. The three future normals were divided by three environmental conditions with changes in: (1) temperature only, (2) carbon dioxide concentration only, and (3) both temperature and carbon dioxide concentration. The agreement between the observed and simulated outcomes was reasonable with the coefficient of determination of grain yield to be 0.78. We concluded that the CERES-Barley model was suitable for predicting climate change impacts on the potential yield of winter naked barley. The effect of the increased temperature only with the climate change scenario was negative to the potential yield of winter naked barley, which ranges from -34 to -9% for the three future normals. However, the effect of the elevated carbon dioxide concentration only on the potential yield of winter naked barley was positive, ranging from 6 to 31% for the three future normals. For the elevated conditions of both temperature and carbon dioxide concentration, the potential yields increased by 8, 15, and 13% for the 2011-2040, 2041-2070, and 2071-2100 normals, respectively.

• Journal of Korea Water Resources Association
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• v.41 no.9
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• pp.907-917
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• 2008

This study investigates differences in hydrological responses to the climatic scenarios resulting from the use of different three hydrological models, PRMS, SLURP, and SWAT. First, the capability of the three models in simulating the present climate water balance components is evaluated at Andong-dam watershed. And then, the results of the models in simulating the impact using hypothetical climate change scenarios are analyzed and compared. The results show that three models have similar capabilities in simulating observed data. However, greater differences in the model results occur when the models are used to simulate the hydrological impact under hypothetical climate change. According as temperature change grows, the differences between model results is increasing because of differences of the evapotranspiration estimation methods. The results suggest that technique that consider the uncertainty by using different hydrological models will be needed when climate change impact assessment on water resources.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.4
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• pp.35-45
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• 2011

The purpose of this study is visualizing climate change contents from Weather Research and Forecasting model and providing useful tool to anyone who want to use them for communication and actual movement. As a results, we have built a process and user interface for publishing Arrow KML, BWS KML, and DI KML. Arrow KML provide wind rose service and wind attribute information for each arrow. BWS KML provide a wind power index and DI KML provide a thermal comfort. All KML contents are more reliable because those are visualized from the scientifically verified climate change prediction model. Further study will focus on searching for climate change contents mining and useful contents design for wide range of climate change mitigation/adaptation activity.