• 제목/요약/키워드: Climate elements

검색결과 314건 처리시간 0.031초

제주 화산회토양의 중금속 연속추출 특성 및 작물 흡수에 미치는 영향 (Sequential Extraction of Trace Elements and Uptake by Pakchoi from Volcanic Soils in Jeju Island)

  • 임한철;문경환;전승종;박원표;현해남
    • 한국토양비료학회지
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    • 제42권2호
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    • pp.65-69
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    • 2009
  • 이 시험은 제주도 화산회토양을 이용하여 Ni, Cu, Zn의 토양중 존재형태를 알아보고 토양 중금속이 청경채의 흡수에 미치는 영향을 알아보고자 수행되었다. 토양 중 함량을 연속추출법에 의해 알아본 결과 토양 종류마다 각 중금속의 존재형태가 차이가 있었고, 이를 이용하여 토양 종류를 구분할 수 있었다. 중금속 함량이 다른 토양을 이용하여 청경채를 재배했을 경우 Zn, Cu는 뿌리에서 흡수되어 지상부로 이동되었으나 Ni은 지상부에서 거의 검출이 되지 않아 청경채 내에서 미량원소의 이동성이 달랐다. 그러나 토양 중 함량과 청경채의 함량 간에는 치환성 Zn을 제외하고는 상관관계가 없었으며, 특히 Ni은 식물체 내에서 이동도 어려울 뿐만 아니라 토양 중 함량과 상관관계를 내기도 어렵기 때문에 전함량이나 치환성함량 등 지금까지의 방법에 의한 토양 중 함량으로 식물체의 함량을 추정하기에는 매우 어렵다고 판단되므로 새로운 접근방법이 개발될 필요가 있다고 판단된다. 인체의 중금속 흡수에 의한 위해성 평가와 관련해서는 토양 식물체, 식물체 인체 두 단계를 거치게 되는데 각 단계에서 불확실성이 존재하므로 중금속의 기준을 토양 및 식물체 별로 각각 마련하는 것보다는 식물체내 농도만으로 정하는 것도 한가지 해결책이 될 수 있다고 생각한다.

전국 기후변화 영향평가를 위한 분포형 수문분석 툴 개발 (Development of Distributed Hydrological Analysis Tool for Future Climate Change Impacts Assessment of South Korea)

  • 김성준;김상호;조형경;안소라
    • 한국농공학회논문집
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    • 제57권2호
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    • pp.15-26
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    • 2015
  • The purpose of this paper is to develop a software tool, PGA-CC (Projection of hydrology via Grid-based Assessment for Climate Change) to evaluate the present hydrologic cycle and the future watershed hydrology by climate change. PGA-CC is composed of grid-based input data pre-processing module, hydrologic cycle calculation module, output analysis module, and output data post-processing module. The grid-based hydrological model was coded by Fortran and compiled using Compaq Fortran 6.6c, and the Graphic User Interface was developed by using Visual C#. Other most elements viz. Table and Graph, and GIS functions were implemented by MapWindow. The applicability of PGA-CC was tested by assessing the future hydrology of South Korea by HadCM3 SRES B1 and A2 climate change scenarios. For the whole country, the tool successfully assessed the future hydrological components including input data and evapotranspiration, soil moisture, surface runoff, lateral flow, base flow etc. From the spatial outputs, we could understand the hydrological changes both seasonally and regionally.

기상청 기후자료의 균질성 문제 (I) - 관측지점의 이전 (Inhomogeneities in Korean Climate Data (I): Due to Site Relocation)

  • 류상범;김연희;권태헌;박일수
    • 대기
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    • 제16권3호
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    • pp.215-223
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    • 2006
  • Among observational, local-environmental, and large-scale factors causing significant changes in climate records, the site relocations and the replacement of the instruments are well-known nonclimatic factors for the analysis of climatic trends, climatic variability, and for the detection of anthropogenic climate change such as heat-island effect and global warming. Using dataset that were contaminated by these nonclimatic factors can affect seriously the assessment of climatic trends and variability, and the detection of the climatic change signal. In this paper, the inhomogeneities, which have been caused by relocation of the observation site, in the climate data of Korea Meteorological Administration (KMA) were examined using two-phase regression model. The observations of pan evaporation and wind speed are more sensitive to site relocations than those of other meteorological elements, such as daily mean, maximum and minimum temperatures, with regardless to region.

기후와 환경에 대응하기 위한 아웃도어 웨어 디자인에 관한 연구 -2000년 이후 컬렉션에서 발표된 디자인을 중심으로- (A Study on Development of Out-door Wear Design to Respond to the Climate and Environment -Focus on the design in collections after the year 2000-)

  • 배정민
    • 복식
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    • 제61권7호
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    • pp.101-109
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    • 2011
  • The present research aims to suggest the design of a new direction that copes with the changing environment. For example, the design for outdoor wear can be made through various methods that allows it to be worn for anytime and anywhere. Also, the research aimed to seek a development direction of outdoor wear design with environment-friendly expanded function that handles unpredictable environmental changes. The analysis of this research is as follows. First, it can be said that the trend of the outdoor wear design according to climate and environment changes is a design that seeks an efficient and rational role in functional aspects such as complex multi-functionality and minimum decorations as well as enhancing economic efficiency. Second, the outdoor wear design provides the optimal climate for the human body even in a continuously changing artificial environment. Its easy and comfortable function also helps to keep defense from possible risk elements. Lastly, this research seeks interactions among design, the body and environment. It also tries shape change using buttons and zippers, etc. according to expansion of a structural form of clothes as multi-functionality and versatility tools, and seeks a design form that can be reconstructed. The research that geared toward environmental changes should be further progressed in order to produce apparel that have efficient adaptability of any climate situations.

Development of a SCAR Marker for Sex Identification in Asparagus

  • Kim, Seong-Cheol;Jung, Yong-Hwan;Seong, Ki-Cheol;Chun, Seung-Jong;Kim, Chun Hwan;Lim, Chan Kyu;Joa, Jae-Ho;Lee, Dong-Sun
    • 한국자원식물학회지
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    • 제27권3호
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    • pp.236-241
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    • 2014
  • A sex-linked random amplified polymorphic DNA (RAPD) marker was identified from Asparagus officinalis L. and was converted into a sequence-characterized amplified regions (SCAR) marker for the large-scale screening of male and female plants. A total of 100 arbitrary decamer oligonucleotide primers were used for the RAPD analysis. Among them, the primer UBC347 amplified one female-specific 400 base pair DNA. Subsequently, the amplified RAPD fragment was cloned and sequenced. The fragment was abundant in AT and shared sequence homology with retrotransposon elements. On the basis of the sequence obtained, a pair of SCAR primer was designed. The amplification product, named F400, was the same size as the respective RAPD fragment from which it was derived. The F400 SCAR marker resulted to be female-specific in the three asparagus varieties tested in this study. This SCAR marker can be used for an early and rapid identification of female and male plants during breeding programs of asparagus.

유엔기후변화협약 재정 분야 협상 쟁점 및 향후 전망 (Discussion on Climate Finance: Issues and Perspectives)

  • 정지원;문진영
    • 환경정책연구
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    • 제14권3호
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    • pp.119-136
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    • 2015
  • 유엔기후변화협약 협상에서 재정 분야는 개도국 지원의 장단기 목표를 수립하고, GCF를 설립하였으며, 상설위원회를 구성하는 등 큰 성과를 나타냈다. 이로서 협약 재정메커니즘의 실질적인 작동을 위한 체제는 갖춰진 것으로 볼 수 있다. 신기후체제 협상에서는 선진국의 역사적 책임을 강조하는 개도국과 변화된 상황에 부합하는 개도국의 행동을 주장하는 선진국의 상반된 입장이 어떻게 절충될 것인지가 핵심 쟁점이다. 특히 합의 도출에 있어 이행수단으로써 기후재원의 역할에 대한 기대가 고조되고 있다. 본고에서는 협약 채택 이후 지난 리마 당사국총회(COP20)까지 재정지원 관련 논의동향을 정리하고 신기후체제 합의를 앞두고 기후재원 분야의 주요 쟁점과 과제를 제시한다.

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CALPUFF 모델을 이용한 기후변화에 따른 일산화탄소의 대기오염 영향 분석 (Analysis about CO Diffusion Change Caused by Climate Change Using CALPUFF)

  • 하민진;이태경;이임학;전의찬
    • 한국기후변화학회지
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    • 제8권2호
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    • pp.81-89
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    • 2017
  • In this study CALPUFF was used to estimate the influence of temperature rise, according to the observation value of temperature rise based RCP scenario, on meteorological elements (wind direction, wind speed, mixing height) and the change of pollutant diffusion. According to the result. applying estimated value of year 2050 temperature rise, the mixing height is increased as per the temperature rise, so the range of atmospheric diffusion is widened. In summer case, by applying temperature rise of $4^{\circ}C$ and comparing with before applying temperature rise, there was change of diffusion range as per the change of temperature between 10 AM to 11 PM. And the range of diffusion was wider than that of before temperature rise. In winter case, by applying estimated value of temperature rise, $2.3^{\circ}C$, diffusion range has been changed between 8 AM to 4 PM, showing different diffusion aspect from summer. Also, according to the result of air pollution level assessment with temperature rise, it was proved that the ratio of area with increasing air pollution level has been getting higher by increase of temperature.

기후변화 적응의 신기후체제 합의: 전망을 위한 접근방법 (Outlook for a New International Agreement on Climate Change Adaptation: How to Approach)

  • 이승준
    • 환경정책연구
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    • 제14권3호
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    • pp.75-94
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    • 2015
  • 본 연구의 목적은 유엔기후변화협약 최초로 법적 효력을 갖는 기후변화 적응 관련 합의문을 도출하는 시기에 앞서 적응과 관련한 당사국 간의 핵심 쟁점을 분석하고 이를 토대로 최종 합의점을 전망하는 이론적 틀을 제공하는 것이다. 유엔기후변화협약 내의 문서와 적응활동 및 신기후체제 합의문 도출을 위한 협상의 논의과정을 분석한 결과 협약에서 적응은 협약의 기본원칙인 '공통의 그러나 차별화된 책임 및 각자의 능력 원칙'에 따라 선진국의 개도국에 대한 지원 중심으로 이루어지고 있음을 알 수 있다. 신기후체제 합의문 도출을 위한 더반 플랫폼 특별 작업반 회의를 통해 적응과 관련하여 장기 및 전 지구적 측면, 의무 및 기여와 행동, 모니터링 및 평가, 제도적 장치, 손실과 피해를 주요 의제로 도출하였다. 이에 따라 각 의제와 관련하여 선진국과 개도국 간 대립되는 쟁점을 토대로 가능한 합의점의 스펙트럼을 설정하고, 본 연구에서 제시하는 협상과정에서 당사국의 입장에 영향을 주는 세 가지 요소인 자국의 이익, 실제 적응문제, 사회적 흐름을 고려하여 최종 합의점을 예측할 수 있다. 신기후체제에 관한 당사국 간 협상이 장기적 측면에서 전 지구적 적응행동을 강화하기 위한 지속성 있는 합의문을 도출하고자 한다면 세 가지 요소를 균형 있게 고려해야하며, 이는 실제 협약 외부에서 이루어지는 적응활동이나 적응과 관련한 사회적 흐름과 수요를 충분히 고려한 합의문이 도출되어야 함을 의미한다. 2015년 제21차 당사국총회의 최종 협상과정에서 당사국들이 국제사회의 기대를 충분히 반영한다면, 신기후체제에 관한 합의가 장기적 측면에서 전 지구적으로 기후변화에 대한 취약성 감소와 회복탄력성 제고를 달성할 수 있는 계기가 될 수 있을 것으로 전망된다.

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IPCC 제5차 과학평가보고서 고찰 (In-depth Review of IPCC 5th Assessment Report)

  • 박일수;장유운;정경원;이강웅;;권원태;윤원태
    • 한국대기환경학회지
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    • 제30권2호
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    • pp.188-200
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    • 2014
  • The IPCC 5th Assessment Report (Climate Change 2013: The Physical Science Basis) was accepted at the 36th Session of the IPCC on 26 September 2013 in Stockholm, Sweden. It consists of the full scientific and technical assessment undertaken by Working Group I. This comprehensive assessment of the physical aspects of climate change puts a focus on those elements that are relevant to understand past, document current, and project future of climate change. The assessment builds on the IPCC Fourth Assessment Report and the recent Special Report on Managing the Risk of Extreme Events and Disasters to Advance Climate Change Adaptation. The assessment covers the current knowledge of various processes within, and interactions among, climate system components, which determine the sensitivity and response of the system to changes in forcing, and they quantify the link between the changes in atmospheric constituents, and hence radiative forcing, and the consequent detection and attribution of climate change. Projections of changes in all climate system components are based on model simulations forced by a new set of scenarios. The report also provides a comprehensive assessment of past and future sea level change in a dedicated chapter. The primary purpose of this Technical Summary is to provide the link between the complete assessment of the multiple lines of independent evidence presented in the main report and the highly condensed summary prepared as Policy makers Summary. The Technical Summary thus serves as a starting point for those readers who seek the full information on more specific topics covered by this assessment. Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen, and the concentrations of greenhouse gases have increased. Total radiative forcing is positive, and has led to an uptake of energy by the climate system. The largest contribution to total radiative forcing is caused by the increase in the atmospheric concentration of $CO_2$ since 1750. Human influence on the climate system is clear. This is evident from the increasing greenhouse gas concentrations in the atmosphere, positive radiative forcing, observed warming, and understanding of the climate system. Continued emissions of greenhouse gases will cause further warming and changes in all components of the climate system. Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions. The in-depth review for past, present and future of climate change is carried out on the basis of the IPCC 5th Assessment Report.

전자기 및 광학 센서를 적용한 무기체계의 강수 운용규격 설정을 위한 한반도 강수량 분포에 관한 연구 (A Study on the Distribution of Rainfall over the Korean Peninsula for the Generation of Rainfall Operational Specifications for Weapon Systems using Electromagnetic and Optical Sensors)

  • 이동주;김재하
    • 한국군사과학기술학회지
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    • 제13권2호
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    • pp.227-234
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    • 2010
  • When a weapon system is developed, climate elements such as temperature, rainfall, and so on have an effect on development costs and a developing period. Therefore, effects of environment and climate must be examined throughly before the design of weapon systems and be applied to their developments. And so, operational and storage requirements for weapon systems are determined and are applied to related tests through analyzing not only environmental factors such as vibration, shock, and so on, but also climate factors. In this paper, the distribution and the frequency of occurrence of rainfall were analyzed and were suggested as a good guide to determine standards of tests for weapon systems when it's raining.