• Title/Summary/Keyword: 기후요인

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Regional Soil Distribution in Jeju Island by Climatic Factors (기후요인에 의한 제주도 토양분포)

  • Moon, Kyung-Hwan;Lim, Han-Cheol;Hyun, Hae-Nam
    • Korean Journal of Soil Science and Fertilizer
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    • v.42 no.5
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    • pp.348-354
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    • 2009
  • We analyzed relationship soil distribution and climatic factors using temperature, precipitation and evapotranspiration maps in Jeju island. The whole area was divided into 5 groups - mesic high moisture region(group1), thermic high moisture region(group2), thermic balanced moisture region(group3), thermic short moisture region(group4), thermic very short moisture region(group5), by soil temperature and monthly moisture balances. By the sequence from group1 to group5, the occupation ratio of soils was increased in order of andisols, inceptisols, alfisols, ultisols in soil orders, and of black soils, very dark brown soils, dark brown soils in soil colors.

도시화와 기후변화가 서울지점 강우특성 변화에 미치는 정량적 영향 분석

  • Hwang, Seok-Hwan;Kim, Jung-Hun;Yu, Cheol-Sang;Jeong, Seong-Won
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.1570-1574
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    • 2010
  • 본 논문에서는 서울지점 강우특성 변화의 지배적인 요인이 도시화에 의한 국소적 현상인지 혹은 지구온난화에 의한 전 지구적 현상의 일부인지에 대한 규명과 그 정량적인 영향정도를 가늠해 보았다. 이를 위해 도시화의 정도가 서로 다른 서울 인근의 비교지점을 선정하여 강우특성별로 변화양상의 차이를 비교하였다. 분석결과, 서로 도시화의 정도가 다른 세지점이 모두 강우량과 강우강도의 중심 크기와 폭이 증가하는 공통적인 경향을 나타내었고, 이는 기후변화가 서울지점 강우특성 변화의 주요 요인으로 작용한 것으로 보인다. 그러나 서울지점과 비교해 인접 비교지점인 수원이나 이천의 강우량과 강우강도의 중심 크기가 비교적 명확히 작은 값을 보였고 중심 위치와 이동방향이 서로 다르게 나타났다. 이러한 차이는 도시화의 영향으로 판단된다. 연구결과를 종합하면, 근래 서울지점 강우특성의 변화요인은 지구온난화 등에 의한 기후변화와 급격한 도시화로 인한 두가지 요인이 복합적으로 작용한 결과로 판단되고, 두 가지 주요 요인의 영향정도는, 월평균 일강우강도 기준에서, 대등한 수준으로 나타났다.

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A Study on the Influence Differences of the Awareness and Attitude toward Climate Change on Satisfaction and Behavioral Intention - Focused on the Comparison Between the Korean and Chinese Tourists- (관광객의 기후변화에 대한 인식과 태도가 만족도와 행동의도에 미치는 영향력 차이에 관한 연구 - 중국인과 한국인 관광객 비교를 중심으로 -)

  • Ahn, Sung-Sik;Hwang, Jung;Hwang, Yun-Seop
    • International Area Studies Review
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    • v.21 no.2
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    • pp.45-70
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    • 2017
  • Tourist industry has many sensitive issues with climate change and is worthy of study from an aspect that it could provide new opportunities and threats from the low-carbon - green- growth point of view. To study how the change of awareness and attitude of the customers due to climate change affects the tourism demand and tourism choices is very important. Even at present, the effect is ongoing. In this paper, diverse needs and changes of tourists, who are the subjects of tourism activities, have been grasped through the examination of psychological characteristics according to climate change after defining the influencing relations of tourism experience, tourism value, tourism risk factors, satisfaction, and behavioral intention, affected by awareness of climate change and their attitude toward it. Through this, the implications that are necessary for establishing marketing strategies could be provided. The results of this present paper are as follows: First, it was shown that awareness of climate change did not affect tourism risk factors while it had a significant influence on tourism experience and tourism value. Secondly, it was revealed that the Chinese tourists generally influenced more greatly than the Koreans. Thirdly, it was shown that the attitude toward climate change did not affect tourism value while it influenced significantly on tourism experience and tourism risk factors. Fourthly, it was revealed that tourism risk factors did not affect tourism satisfaction while tourism experience and tourism value had a significant influence on tourist satisfaction. Fifthly and last, it was shown that tourism experience, tourism value, and tourism risk factors did not influence behavioral intention respectively.

The Direction and Implication of Urban Development in the Age of Response Climate Change (기후변화 대응시대의 도시개발방향과 시사점)

  • Oh, Eun-Yeol
    • Journal of Industrial Convergence
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    • v.17 no.1
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    • pp.33-39
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    • 2019
  • The purpose of this study was to present the direction and implications of urban development in relation to climate risk factors and environment for practical implementation of urban development in response to climate change. The research method was carried out through a qualitative data survey and analysis. As a result of the study, the direction of urban development according to the climate risk factors emphasized the importance of preparing conditions for urban development by establishing a damage prevention system for natural disasters and analyzing the risk of natural disasters by conducting analysis of the impact and vulnerability of climate change in urban planning. The direction of urban development on the environmental side suggested the need for the promotion of public transport oriented development (TOD) in the form of urban planning to realize sustainable and practical urban development. Future research directions will need to be supplemented with more quantitative and empirical findings.

Estimation of the Greenhouse Gas Emission from Transport by the Tier 2-3 Method (Tier 2-3 수준의 수송부문 온실가스 배출량 추정(2000))

  • 최상진;김호정;홍영실;장영기
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.217-218
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    • 2003
  • 지구의 기후변화는 자연, 인위적인 요인 모두에 의해서 발생되지만 UN IPCC는 "인간의 활동에 의해 발생되는 온실가스가 자연적인 기후변화에 단독으로 미치는 영향보다도 복합적으로 작용하여 현재보다 휠 씬 더 지구온난화 등 기후변화를 가속화시키고 있다"고 하여 인위적인 요인의 중요성을 시사하고 있으며, 인위적 온실가스 배출량의 상당부분은 에너지산업, 제조/건설업, 수송 등의 연료연소부문에서 기인하고 있다. (중략)

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Analyzing the Impacts of Climate Change on Forest Composition in Korea (산림의 임상구조 결정요인 분석과 기후변화에 따른 임상구조 변화 예측)

  • Lee, Honglim;Kwon, Oh Sang
    • Environmental and Resource Economics Review
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    • v.26 no.2
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    • pp.229-255
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    • 2017
  • This study empirically estimates the impacts of climate change on forest composition in Korea using a fractional data regression model, and forecasts the change in forest composition in the 2040s and 2090s based on the IPCC climate change scenarios. Unlike the forest science studies that incorporate mostly only ecological variables as the determinants of forest composition, we take into account regional level socio-economic and forest management variables as well. Our estimation results found that not only environmental factors but also socio-economic and forest management related factors strongly affect the composition of Korean forest. Based on the estimation results and IPCC scenarios on climate change, we predict that the share of currently dominant coniferous forest will decline in the future under all scenarios. About 10% of total forest area is likely to be converted from coniferous forest into broadleaved forest until 2090s under the scenario RCP 8.5. It is also predicted that there will be a substantial regional variation in the effects of climate change on forest composition, and the coniferous forests in the inland regions will decline more dramatically.

Study on Improvement of Frost Occurrence Prediction Accuracy (서리발생 예측 정확도 향상을 위한 방법 연구)

  • Kim, Yongseok;Choi, Wonjun;Shim, Kyo-moon;Hur, Jina;Kang, Mingu;Jo, Sera
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.23 no.4
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    • pp.295-305
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    • 2021
  • In this study, we constructed using Random Forest(RF) by selecting the meteorological factors related to the occurrence of frost. As a result, when constructing a classification model for frost occurrence, even if the amount of data set is large, the imbalance in the data set for development of model has been analyzed to have a bad effect on the predictive power of the model. It was found that building a single integrated model by grouping meteorological factors related to frost occurrence by region is more efficient than building each model reflecting high-importance meteorological factors. Based on our results, it is expected that a high-accuracy frost occurrence prediction model will be able to be constructed as further studies meteorological factors for frost prediction.

Wintering Population Change of the Cranes according to the Climatic Factors in Cheorwon, Korea: Effect of the Snow Cover Range and Period by Using MODIS Satellite Data (기후요인에 의한 철원지역 두루미류 월동개체수 변화 - MODIS 위성영상을 이용한 눈 덮임 범위와 지속기간의 영향 -)

  • Yoo, Seung-Hwa;Lee, Ki-Sup;Jung, Hwa-Young;Kim, Hwa-Jung;Hur, Wee-Haeng;Kim, Jin-Han;Park, Chong-Hwa
    • Korean Journal of Ecology and Environment
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    • v.48 no.3
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    • pp.176-187
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    • 2015
  • In this study, we hypothesized that the size of wintering crane population would change due to the climate factors. We assumed that wintering population size would differ by climate values in January, which is the coldest period in year. Especially, White-naped cranes were able to choose wintering site between Cheorwon and other alternative place where snow coverage had low influence, differing from Red crowned cranes. For this reason, we predicted the population size of White-naped cranes would fluctuate according to the extent of snow coverage in Cheorwon. Therefore we used snow coverage data based on MODIS and climate data from KMA (Korea Meteorological Administration) that are generally used. We analyzed the crane's population size in Cheorwon in January from 2002 to 2014. The temperature in the Cheorwon increased from 2002 to wintering period in 2007~ 2008 and went down, showing the lowest temperature in 2011~ 2012. With this phenomenon, warmth index showed the similar pattern with temperature. Amount of newly accumulated snow (the amount of snow that fallen from 0:01 am to 11:29 pm in a day) was low after 2002, but rapidly increased in 2010~ 2011 and 2011~ 2012. The area of snow coverage rapidly declined from 2002 to 2005~ 2006 but suddenly expanded in wintering period in 2009~ 2010 and 2010~ 2011. Wintering population size of the White-naped cranes decreased as snow coverage area increased in January and the highest correlation was found between them, compared to the other climatic factors. However, the number of individuals of Red crowned cranes had little relationship with general climate factors including snow cover range. Therefore it seems that population size of the Red crowned crane varied by factors related with habitat selection such as secure roosting site and area of foraging place, not by climatic factors. In multiple regression analysis, wintering population of White-naped cranes showed significant relationship with logarithmic value of snow cover range and its period. Therefore, it suggests that the population size of the White-naped crane was affected by snow cover range n wintering period and this was because it was hard for them to find out rice grains which are their main food items, buried in snow cover. The population size variation in White-naped cranes was caused by some individuals which left Cheorwon for Izumi where snow cover had little influence on them. The wintering population in Izumi and Cheorwon had negative correlation, implying they were mutually related.

Habitat Prediction and Impact Assessment of Eurya japonica Thunb. under Climate Change in Korea (기후변화에 따른 한반도 사스레피나무의 생육지 예측과 영향 평가)

  • Yun, Jong-Hak;Park, Jeong Soo;Choi, Jong-Yun;Nakao, Katsuhiro
    • Journal of Environmental Impact Assessment
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    • v.26 no.5
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    • pp.291-302
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    • 2017
  • The research was carried out in order to find climate factors which determine the distribution of Eurya japonica, and the potential habitats (PHs) under the current climate and climate change scenario by using species distribution models (SDMs). Four climate factors; the warmth index (WI), the minimum temperature of the coldest month (TMC), summer precipitation (PRS), and winter precipitaion (PRW) : were used as independent variables for the model. Seventeen general circulation models under RCP (Representative concentration pathway) 8.5 scenarios were used as future climate scenarios for the 2050s (2040~2069) and 2080s (2070~2099). Highly accurate SDMs were obtained for E. japonica. The model of distribution for E. japonica constructed by SDMs showed that minimum temperature of the coldest month (TMC) is a major climate factor in determining the distribution of E. japonica. The area above the $-5.7^{\circ}C$ of TMC revealed high occurrence probability of the E. japonica. Future PHs for E. japonica were projected to increase respectively by 2.5 times, 3.4 times of current PHs under 2050s and 2080s. It is expected that the potential of E. japonica habitats is expanded gradually. E. japonica is applicable as indicator species for monitoring in the Korean Peninsula. E. japonica is necessary to be monitored of potential habitats.

A Study on the Relationship between Reclamation of the Foreshore and Climate Change in Busan Area (부산지역의 기후변화와 매립의 관련성에 대한 연구)

  • Doe, Geun-Young;Cho, Yong-Soo;Yee, Jurng-Jae
    • Journal of Navigation and Port Research
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    • v.28 no.8
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    • pp.759-766
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    • 2004
  • Busan has its unique character which differed from inland such as Seoul and Daegu Because Busan is located in coast district of Korea, it could be inferred that the climate change in Busan had been influenced by foreshore reclamation in the urbanization process. The purpose of this study is to investigate the relationship between reclamation of the foreshore and climate change by analysing the climate change over the past 70 years in three metropolitan cities. The conclusion from this study are as follows. 1) There was not a big difference among elements of climate change in three cities. 2) Annual mean minimum temperature in Seoul and Daegu had remarkably increased over the past 70 years. On the other hand, annual maximum temperature in Busan had a sudden rise in the only tome to reclaim the foreshore.