• Title/Summary/Keyword: Climate factors

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Long-term pattern changes of sea surface temperature during summer and winter due to climate change in the Korea Waters

  • In-Seong Han;Joon-Soo Lee;Hae-Kun Jung
    • Fisheries and Aquatic Sciences
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    • v.26 no.11
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    • pp.639-648
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    • 2023
  • The sea surface temperature (SST) and ocean heat content in the Korea Waters are gradually increased. Especially the increasing trend of annual mean SST in the Korea Water is higher about 2.6 times than the global mean during past 55 years (1968-2022). Before 2010s, the increasing trend of SST was led by winter season in the Korea Waters. However, this pattern was clearly changed after 2010s. The increasing trend of SST during summer is higher about 3.9 times than during winter after 2010s. We examine the long-term variations of several ocean and climate factors to understand the reasons for the long-term pattern changes of SST between summer and winter in recent. Tsushima warm current was significantly strengthened in summer compare to winter during past 33 years (1986-2018). The long-term patterns of Siberian High and East Asian Winter Monsoon were definitely changed before and after early- or mid-2000s. The intensities of those two climate factors was changed to the increasing trend or weakened decreasing trend from the distinctive decreasing trend. In addition, the extreme weather condition like the heatwave days and cold spell days in the Korea significantly increased since mid- or late-2000s. From these results, we can consider that the occurrences of frequent and intensified marine heatwaves during summer and marine cold spells during winter in the Korea Waters might be related with the long-term pattern change of SST, which should be caused by the long-term change of climate factors and advection heat, in a few decade.

Quantification of Climate Change Vulnerability Index for Extreme Weather - Focused on Typhoon case - (기후변화에 따른 극한기상의 취약성 지수 정량화 연구 - 태풍을 중심으로 -)

  • Kim, Cheol-Hee;Nam, Ki-Pyo;Lee, Jong-Jae
    • Journal of Environmental Impact Assessment
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    • v.24 no.2
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    • pp.190-203
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    • 2015
  • VRI(Vulnerability-Resilience Index), which is defined as a function of 3 variables: climate exposure, sensitivity, and adaptive capacity, has been quantified for the case of Typhoon which is one of the extreme weathers that will become more serious as climate change proceeds. Because VRI is only indicating the relative importance of vulnerability between regions, the VRI quantification is prerequisite for the effective adaptation policy for climate in Korea. For this purpose, damage statistics such as amount of damage, occurrence frequency, and major damaged districts caused by Typhoon over the past 20 years, has been employed. According to the VRI definition, we first calculated VRI over every district in the case of both with and without weighting factors of climate exposure proxy variables. For the quantitative estimation of weighting factors, we calculated correlation coefficients (R) for each of the proxy variables against damage statistics of Typhoon, and then used R as weighting factors of proxy variables. The results without applying weighting factors indicates some biases between VRI and damage statistics in some regions, but most of biases has been improved by applying weighting factors. Finally, due to the relations between VRI and damage statistics, we are able to quantify VRI expressed as a unit of KRW, showing that VRI=1 is approximately corresponding to 500 hundred million KRW. This methodology of VRI quantification employed in this study, can be also practically applied to the number of future climate scenario studies over Korea.

The Impact of Climate Factors, Disaster, and Social Community in Rural Development

  • FARADIBA, Faradiba;ZET, Lodewik
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.9
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    • pp.707-717
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    • 2020
  • Global warming affects climate change and has an overall impact on all aspects of life. On the other hand, community behavior and disaster aspects also have an important role in people's lives. This will also have an impact on regional development. This study aims to find the effect of climate, disaster, and social community on rural development. This study uses data on the potential of rural development from PODES 2014, and 2018 data collection on climate conditions and regional status is sourced from relevant ministries. This research uses Ordinary Least Square (OLS) Regression Analysis method, then continued with CHAID analysis to find the segmentation of the role of climate, disaster, and social factors on rural development. The results of this study found that all research regressor variables significantly influence the Rural Development Index (IPD2018), with an R-squared value of 32.9 percent. Efforts need to be taken in order to implement policies that are targeted, effective, and efficient. The results of this study can be a reference for the government in determining policies by focusing on rural development that have high duration of sunshine, cultivating natural disaster warnings, especially in areas prone to natural disasters, and need to focus on underdeveloped areas.

A Study on the Effects of the Win-Win Supportive Collaboration on Safety Climate, Safety Prevention, and Safety Behavior: From the Safety Quality Perspective of Domestic Small and Medium-sized Logistics Companies (지원적 상생협력이 안전 분위기, 안전 예방 활동 및 안전행동에 미치는 영향: 중소 물류기업의 안전 품질 관점에서)

  • Park, Jinsoo;Lee, Sunghee
    • Journal of Korean Society for Quality Management
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    • v.50 no.2
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    • pp.251-264
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    • 2022
  • Purpose: This study aims to contribute to the research flow on the relationship between win-win supportive collaboration and safety, while noting that win-win supportive collaboration affects corporate safety-related factors such as climate, safety prevention, and behavior from the perspective of domestic small and medium-sized logistics companies that have signed contracts with large logistics companies, Methods: Based on responses from 147 small and medium-sized logistics companies, structural equation modeling is performed to examine the relationship among the factors such as supportive collaboration, safety climate, safety prevention, safety behavior. Results: Study results are as follows. Supportive collaboration of large logistics companies influence the formation of a safety climate and safety behavior within logistics SMEs positively. In addition, safety prevention and safety behavior are affected by safety climate in a positive way. Conclusion: Win-Win supportive collaboration is a driving force behind safety management practices in the supply chain leading to safety management performance, so it is necessary to consider it for the growth of the sustainable supply chain.

A study on adaptation measures to climate crisis for water supply system of Jeju Special Self-Governing Province (제주특별자치도 상수도 기후위기 적응대책 연구)

  • Jinkeun Kim
    • Journal of Korean Society of Water and Wastewater
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    • v.37 no.6
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    • pp.447-456
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    • 2023
  • Risk assessment on Jeju Special Self-Governing Province(JSSGP)'s water supply facilities and establishment of adaptation measures for climate crisis factors were implemented. JSSGP's vulnerability to the climate crisis was high in the order of drought, heat wave, heavy rain and strong wind. As a drought adaptation measure, policies of water saving and revenue water ratio improvement were considered. As for the heat wave adaptation measure, the introduction of an advanced water treatment process was suggested in response to the increase of algae cell number which resulting in taste and odor problem. As for heavy rain adaptation measures, the installation and operation of automatic coagulant injection devices for water purification plants that take turbid surface water were proposed. As a measure to adapt to strong winds, stabilization of power supply such as installation of dual power line was proposed in preparation for power outages. It is expected that water facilities will be able to supply high-quality tap water to customers even under extreme climate conditions without interruption through risk assessment for climate crisis factors and active implementation of adaptation measures.

Consumers' Attitudes toward the General and Fashion-Specific Climate Environments: Focusing on the Relations with Values, Knowledge, and Climate Cognition (소비자들의 일반기후환경태도와 패션기후환경태도: 가치와 지식 및 기후인식과의 관계를 중심으로)

  • Ihn Hee Chung
    • Human Ecology Research
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    • v.61 no.4
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    • pp.599-613
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    • 2023
  • This study investigated female consumers' attitudes toward the general and fashion-specific climate environments and analyzed the relations between the attitudes and the variables such as values, knowledge, and climate cognition. The data was collected from a sample of 450 women in their 20s, 30s, and 40s via quota sampling from a selfreported online survey in 2023. The measurement comprised the attitudes toward the general and fashion-specific climate environments, Rokeach's 18 terminal values, Holbrook's 8 consumer values regarding fashion products, climate environmental knowledge related to fashion, the cognition concerning the climate crisis, and several demographic variables. Descriptive statistics, factor analysis, reliability analysis, and correlations were applied to the data using SPSS. As a result, two factors were determined for the attitudes toward the general and fashion-specific climate environments, respectively: social and personal. Family security, happiness, and self-respect were identified as important terminal values. Quality, efficiency, aesthetics, and ethics were considered important when the current sample group purchased fashion products. The mean score of climate environmental knowledge related to fashion was lower than neutral; however the cognition of the climate crisis was considerably high. Attitudes toward the general and fashion-specific climate environments showed positive relations with values, knowledge, and climate cognition. The results were discussed to provide some insight and suggestions to carbon neutrality and the related studies.

A Study on the Relationship between R&D Culture and Job Involvement in Information Technology Industries (정보기술산업의 R&D 문화와 직무몰입에 관한 연구)

  • Lee, Sun-Kyu;Lee, Ung-Hee;Jeon, Ki-Sang;Han, Soo-Deok
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.3
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    • pp.103-110
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    • 2006
  • This paper aims to examine the main factors of the organizational climate and analyze their effects on job involvement. To accomplish these purposes, the nam factors of the organizational climate such as diversity, autonomy, redundancy, connectivity and flexibility were found from the previous studies. The questionaries of 350 were distributed to the employees working at the Gumi Industrial Complex. The questionaries of 298 were obtained and 267 were analyzed through frequencies, correlation and multiple regression. The results of this study are as followings; First, we conducted exploratory factor analysis for five constructs(diversity, autonomy, redundancy, connectivity and flexibility) using oblique rotation method that did not assume independence among the factors and main factors of knowledge management were grouped together by five factors. Second, it is shown that four main factors of organizational climate have a positive influence on the job involvement(p<0.05). This study, however, have limitations of number of sample and survey area. The future study should consider these limitations in improving model applicability in practice.

Identification of Meteorological Threats by Climate Change in the Cheongmicheon Basin (기후변화로 인한 청미천유역의 기상학적 위협요인 규명)

  • Lee, Cheol-Eung;Kim, Sang Ug
    • Journal of Industrial Technology
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    • v.35
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    • pp.23-30
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    • 2015
  • In recent, the various methods to predict the hydrological impacts due to climate change have been developed and applied. Especially, the variability of the meteorological factors such as rainfall, temperature, and evaporation can impact on the ecosystem in a basin. The variability caused by climate change on the meteorological factors can be divided by a gradual and abrupt change. Therefore, in this study, the gradual change is detected by simple linear regression and Mann-Kendall trend test. Also, the abrupt change is detected by Bayesian change point analysis. Finally, the result using these methods can identify the meteorological threats in the Cheongmicheon basin.

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The relationship between internal marketing and food safety, and the moderating effect of employment type in food service industry (외식업체 근로자의 내부마케팅과 식품 안전분위기의 관계 및 고용형태의 조절효과)

  • Ahn, Kwan-Young;Bae, Jung-Nam
    • Journal of the Korea Safety Management & Science
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    • v.15 no.2
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    • pp.151-159
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    • 2013
  • This paper reviewed the relationship between internal marketing(management support, education, pay system, internal communication, employment security) and food safety climate(prevention, superior attitude, work condition), and the moderating effect of employment type(permanent or temporary employees) in food service company. Based on the responses from 304 responses, the results of hierarchical multiple regression analysis showed that 4 factors(management support, education, internal communication, employment security) effect positively on food safety climate(prevention, superior attitude, work condition). The positive effect of internal communication on superior attitude and work condition appeared to be more positive in permanent employees than in temporary employees. And the results of t-test analysis showed that permanent employees perceived more positively all internal marketing factors(management support, education, pay system, internal communication, employment security) and food safety climate(precaution, superior attitude, work condition) than temporary employees.

Bayesian Nonstationary Flood Frequency Analysis Using Climate Information

  • Moon, Young-Il;Kwon, Hyun-Han
    • Proceedings of the Korea Water Resources Association Conference
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    • 2007.05a
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    • pp.1441-1444
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    • 2007
  • It is now widely acknowledged that climate variability modifies the frequency spectrum of hydrological extreme events. Traditional hydrological frequency analysis methodologies are not devised to account for nonstationarity that arises due to variation in exogenous factors of the causal structure. We use Hierarchical Bayesian Analysis to consider the exogenous factors that can influence on the frequency of extreme floods. The sea surface temperatures, predicted GCM precipitation, climate indices and snow pack are considered as potential predictors of flood risk. The parameters of the model are estimated using a Markov Chain Monte Carlo (MCMC) algorithm. The predictors are compared in terms of the resulting posterior distributions of the parameters associated with estimated flood frequency distributions.

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