• Title/Summary/Keyword: climate characteristic

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Analyses of Fossil Pollen of Tetiary Miocene in the Yeonil Area, Korea (연일지역 신생대 제삼기 마이오세층의 화석화분 분석에 관한 연구)

  • Chang, Nam-Kee;Ki-Wan Kim;Jae-Geun Kim
    • The Korean Journal of Ecology
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    • v.11 no.3
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    • pp.137-144
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    • 1988
  • The use of modern pollen spectra for comparative interpretation of fossil pollen sequence requires the ability to distinguish different vegetation types by their pollen spectra, which may show similarities to fossil assemblages. Tertiary marine and non-marine sediments, the Yeonil Group, of the Yeonil area, Korea, was found thirty-two palynomorphic genera. One of the characteristic features of Yeonil geo-flora is predominance of coniferous trees over shrubs, herbs, and ferns. Miocene deposits of Yeonl area, Korea, ae differentiated with five zones. According to the pollen diagram it can be inferred the climate of the Tertiary Miocene of the Yeonil area, Korea.

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Analysis on disasters pattern of the railroad caused by heavy rainfall ($2002{\sim}2007$) (집중호우로 인한 철도재해 유형 분석($2002{\sim}2007$년도))

  • Choi, Chan-Yong;Lee, Jin-Wook;Shin, Min-Ho;Lee, Suk-Young
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.88-92
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    • 2008
  • For more and more citizen safety and national security due to an unusual weather change and massive disaster, the atmospheric is one of the most major factors. According the Weather Service data that the rainfall intensity has been on the rise due to heavy rainfall in korea, and then daily precipitation expects to decline relative it. The characteristic climate of the domestic has a heavy rainfall due to 65% of mountain area in country and a regional declination as like seasonal effect, yearly. etc. In this paper, it was analyzed a disaster pattern and restoration cost based on occurred heavy rainfall from 2002 to 2007.

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Variations in Air Temperature and Water Temperature with Tide at the Intertidal Zone : Odo Island, Yeosu (조간대에서 조위에 따른 기온과 수온 변화 : 여수 오도섬)

  • Won Gi Jo;Dong-hwan Kang;Byung-Woo Kim
    • Journal of Environmental Science International
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    • v.31 no.12
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    • pp.1027-1038
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    • 2022
  • The intertidal zone has both land and marine characteristics and shows complex weather environments. These characteristics are suited for studying climate change, energy balance and ecosystems, and may play an important role in coastal and marine weather prediction and analysis. This study was conducted at Odo Island, approximately 300m from the mainland in Yeosu. We built a weather observation system capable of real-time monitoring on the mud flat in the intertidal zone and measured actual weather and marine data. Weather observation was conducted from April to June 2022. The results showed changes in air temperature and water temperature with changes in the tide level during spring. Correlation analysis revealed characteristic changes in air temperature and water temperature during the day and night, and with inundation and exposure.

THE SCENARIOS OF GREENHOUSE GAS REDUCTION ON SEOUL NATIONAL UNIVERSITY

  • Sooyoung Kim;Hyun-Soo Lee;Moonseo Park;Kwon-Sik Song
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.213-218
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    • 2013
  • To respond to global warming and climate change, Korean Government has implemented the GHG Target Management, which leads to a voluntary reduction in greenhouse gases from large businesses. Korean universities have put efforts on reducing GHG emissions and energy consumptions in the campuses, however, because of various activities and its characteristic of non-profit organization, establishing a long-term plan for reducing greenhouse gases is necessary. In this research, the Seoul National University's energy usage is analyzed and applicable technologies for reducing GHG emissions are extracted. Hence, three scenarios for performing the GHG Target Management are established. Proposed scenario is available for GHG Target Management and it would be expected to support decision- makings for reducing GHG emissions.

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Sea Level Fluctuation in the Yellow Sea Basin (황해 분지의 해수면 변동)

  • PARK, YONG AHN;KHIM, BOO KEUN;ZHAO, SONGLING
    • 한국해양학회지
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    • v.29 no.1
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    • pp.42-49
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    • 1994
  • A series of radiocarbon dating from intertidal, subtidal, and inner continental shelf deposits investigated along the west coast of Korea as well as from its offshore sea floor (namely, the eastern Yellow Sea Basin) how (1) the Holocene sea level rise, i.e., the ecstatic sea-level history during the oxygen isotope stage 1, and (2) pre-Holocene sea-level fluctuations during the oxygen isotope stages 2 and 3. Marine geophysical investigations in the Yellow Sea reported a possible development of desert and loses deposits due to dieselization under the cold and dry climate during the Last Glacial Maximum. The Kanweoldo deposit overlain unconformably by the Holocene intertidal deposits, which is mainly exposed along the tidal channels and intertidal flats in the Cheonsu Bay, the west coast of Korea, shows the characteristic cryogenic structure (cryoturbation). Such cryoturbation structure of the Kanweoldo deposit appears to indicate the cold and dry climate under the ecstatic sea-level paleoshoreline standing before and after of the pre-Holocene interstitial period (about 30000 y BP is suggested and its shoreline curve is constructed.

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A Study on the Distributions of Minimum Temperature during January in the Central Region of South Korea: focused on Minimum Temperature at Cheorwon (기압배치형별 중부지방의 1월 최저기온 분포에 관한 연구: 철원의 최저기온을 중심으로)

  • Lee, Seungho;Jang, Jiwon
    • Journal of the Korean Geographical Society
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    • v.49 no.1
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    • pp.32-44
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    • 2014
  • This study aimed to analyze the characteristic of the distribution of minimum temperature during January in the central region of South Korea and to investigate causes for the occurrence of extreme minimum temperature in Cheorwon. January temperature distribution data which were collected from 25 weather stations in central area from 1991 to 2010 were investigated, and the difference of temperature between Cheorwon and the other stations in central region, such as Chuncheon, Hongcheon, Bonghwa, Daegwallyoung, Wonju and Jecheon were analyzed by the type of atmospheric pressure system. Daily mean temperature and mean of daily minimum temperature appear to be low at Cheorwon and at the sites in high altitudes, but the frequency of extreme cold wave such as below $-15^{\circ}C$ is also noticeable in Cheorwon. When the Siberian High has expanded and migratory anticyclone has moved onto the north of the Korean Peninsula, the temperature at Cheorwon is relatively low. Furthermore it shows a lesser difference between Cheorwon and the compared stations when the migratory anticyclone affected the area, even at basin like Bonghwa, Jecheon more lower than Cheorwon.

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The Occurrence Characteristic and Future Prospect of Extreme Heat and Tropical Night in Daegu and Jeju (대구와 제주의 폭염 및 열대야의 발생 특성)

  • Kim, Jin-Ah;Kim, Kyu-Rang;Kim, Baek-Jo
    • Journal of Environmental Science International
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    • v.24 no.11
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    • pp.1493-1500
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    • 2015
  • Observation data (1981-2014) and climate change scenario data (historical: 1981-2005; RCP 2.6 and 8.5: 2006-2100) were used to analyze occurrence and future outlook of the extreme heat days and tropical nights in Daegu and Jeju. Then we compared the mortality and observations data (1993-2013). During 1981-2014, the average of extreme heat days (tropical nights) was 24.41 days (12.47 days) in Daegu, and 6.5 days (22.14 days) in Jeju. Extreme heat days and tropical nights have been similarly increased in Daegu, but tropical nights increased more than extreme heat days in Jeju. Extreme heat days and tropical nights in both, Daegu and Jeju showed high correlation with daily mortality, specifically Daegu's correlation was higher than that of jeju. The yearly increasing rate of extreme heat of the future (2076-2100) was 1.7-3.6 times and 7.8-37.7 times higher than the past (1981-2005) in Daegu and Jeju, respectively. The yearly increase rate of tropical nights of future was 2.6-5.0 times and 2.9-5.6 times higher in Daegu and Jeju, respectively. During 2006-2100 periods, the trend of extreme heat days was observed both in Daegu and Jeju. On the average, extreme heat days and tropical nights in Jeju increased more than that of Daegu. However, the trend of extreme heat days increase in Daegu was higher than that in Jeju, whereas, the trend of tropical nights in Jeju was higher than that in Daegu.

Types and Characteristics of Skirts of Minority Races in Yunnan Province (운남 지역 소수민족 치마의 조형적 특성)

  • Kim Hye-Young;Cho Woo-Hyun
    • Journal of the Korea Fashion and Costume Design Association
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    • v.7 no.3
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    • pp.167-179
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    • 2005
  • Skirts hold an important position in dress culture among various dress forms, being worn by more than half of mu. In this study, Chima is defined as garment for lower part of the body without crotch sewing, contrasting with trousers. The authors classify and compare the formation of the skirts of minority races in Yunnan area, based on Korean Chima, understanding the forms of skirts and examining the composition, color, pattern and material. For the study, the authors investigated 57 pieces of skirts among 341 pieces of minority races dresses from Yunn Nationality Museum collection exhibited at Korea Folk Village in May 2003, and referred to customs materials and photos in various literatures. Skirts in Yunnan area are divided into 6 areas, that is, seamless one-piece skirt area, wrapskirt area and mixed type skirt area. Skirt formation factors from the effect of environment such as climate, lifestyle and means of production were studied, and characteristics, differences and similarities were reviewed. Figure of skirts are studied by compostion, color, material, and technique. By composition, they can be classified based on the similarity to Hanbok (traditional Korean dress). By color, worshipped color and preferred color vary by races and by area. Materials vary in kinds and thickness by area with various climate. By technique, national characteristic patterns are inherited through national traditional dyeing and embroidery. It is not easy to conclude based on single item of skirt, but we suggest that national dresses have been settled through the mutual supplements between the effect of social and cultural exchange such as historical inheritance, geological environment, religion and production activity and the various forms of skirts from changes in shape, color, material and wearing form of dresses.

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Correlation analysis between climate indices and Korean precipitation and temperature using empirical mode decomposition : I. Data decomposition and characteristic analysis (경험적 모드분해법을 이용한 기상인자와 우리나라 강수 및 기온의 상관관계 분석 : I. 자료의 분해 및 특성 분석)

  • Ahn, Si-Kweon;Choi, Wonyoung;Kim, Taereem;Heo, Jun-Haeng
    • Journal of Korea Water Resources Association
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    • v.49 no.3
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    • pp.197-205
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    • 2016
  • Recently, natural hazards have occurred frequently due to climate change. The research need for predicting variability and tendency of precipitation and temperature has been increased. However, it is difficult to determine the characteristics of precipitation and temperature within a confidence range since they change due to complex factors with choppy and too many components. If their characteristics having more than one component are decomposed, then it can be useful for determining the variation of such characteristics more accurately. In this study, Korean precipitation and temperature were decomposed and their Intrinsic Mode Function (IMF) were extracted from Empirical Mode Decomposition (EMD). Finally, the characteristics of Korean precipitation and temperature data were analyzed in terms of periodicity and tendency.

A study of relationships between narcissism and job stress (자기애적 성격과 직무스트레스와의 관계에 대한 고찰)

  • Cha Ta-Soon
    • Management & Information Systems Review
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    • v.10
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    • pp.1-31
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    • 2002
  • As the modern society is called the narcissistic society, the narcissism is widespread in the personality of individuals and the society at large. In consideration of this side, this study explored for several characteristics of the narcissistic personality and the job stress, and explored for the relationships between the two things theoretically. The narcissism is an attempt to repair self-esteem weakened by the splitting anxiety, the lack and the pathological fusion of self-structure. The job stress is a factor that a characteristic of the job influenced on the behavioral and affective response of the person on the job directly or indirectly. This study selected organizational justices, organizational constraints, role conflict, role ambiguity, role overload, organizational climate, interpersonal relations and career development as factors of the job stress. This study viewed that the stress is made from an interaction between environmental stimulus and personal particular reaction by defining the stress as an interaction model of stimulus-response and personal reaction is caused by psychological adjustment process, personal differences. On this occasion, this study discussed that the narcissistic personality is easy to get stress and weak in the job stress with regarding the personality as a mediation variation of psychological process. As a result, the narcissists estimated themselves positively and their self-esteem is high, but they excessively showed a self biased cognitive and affective response about the negative feedback to protect themselves. Moreover, this positive estimate on themselves and high self-esteem was vulnerable and weak in the self threat. In this view, the narcissistic personality is easy to get more job stress such as organizational justices, organizational constraints, role conflict, role ambiguity, role overload, organizational climate, interpersonal relations and career development.

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