Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Future Projections of Köppen Climate Shifts in the Asia Regions Using A2 Scenario

A2 시나리오를 이용한 아시아 지역 기후대의 변화 전망

  • Shin, Sang Hoon (Dept. of Civil and Environmental Engrg., Sejong Univ.) ;
  • Bae, Deg Hyo (Dept. of Civil and Environmental Engrg., Sejong Univ.)
  • 신상훈 (세종대학교 공과대학 건설환경공학과) ;
  • 배덕효 (세종대학교 공과대학 건설환경공학과)
  • Received : 2012.09.11
  • Accepted : 2012.10.31
  • Published : 2013.03.31
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Abstract

The objective of this study is to analyse the current climate zone applied by K$\ddot{o}$ppen climate classification and the future climate zone projected by the A2 scenario in Asia regions. The spatial and temporal variations of precipitation and temperature were also analyzed. As regards to the result of analysis on the variation of climate factor, temperature and precipitation will be increasing $4.0^{\circ}C$ and 12% respectively in the 2080s comparing with the reference period (1991~2010). Spatially, the range of temperature increase on the high latitude area is higher than that on the low latitude area. The precipitation will be increasing averagely in the overall area, but the spatial unequal distribution of precipitation will be intensified. At the result of the future climate zone, the area of warm climates will be increasing while the area of cold climates will be decreasing. In 2080s, the temperature will be increasing as much as 7.2% and 1.9% on the Tropical climates and Arid climates respectively, but it will be decreasing as -2.4%, -4.9% and -1.8% on the Warm temperate climates, Cold climates and Polar climates respectively. Furthermore, the part of Savannah climates and Desert climates will be mostly increasing. It is mainly caused by the temperature increase and desertification impact according to global warming.

본 연구에서는 쾨펜의 기후대 구분법을 이용하여 현재 아시아 지역(경도 $55.6^{\circ}{\sim}149.3^{\circ}$, 위도 $-11.5^{\circ}{\sim}53.0^{\circ}$) 기후대를 분석하고, IPCC SRES A2 시나리 오상황에서의 기후대 변화를 전망하였다. 이와 더불어 기후대 구분의 기준이 되는 강수 및 기온자료의 시공간적 변동성을 분석하였다. 기후요소의 변동성을 분석한 결과, 2080년경에는 기준기간(1991~2010)에 비해 기온은 $4.0^{\circ}C$, 강수량은 12% 증가할 것으로 전망되었다. 공간적으로는 기온의 경우 고위도 지역이 저위도 지역보다 기온상승폭이 크게 나타났으며 강수량은 지역적 편중이 심화될 것으로 전망되었다. 기후대 변화를 전망한 결과, 대체로 온난한 기후대의 면적은 증가한 반면, 한랭한 기후대의면적은 감소하는 것으로 분석되었다. 기준기간 대비 2080년경에는 열대 기후대(A)의 경우 7.2%, 건조 기후대(B)는 1.9% 증가하였으며 온대 기후대(C), 냉대 기후대(D), 한대 기후대(E)는 각각 -2.4%, -4.9%, -1.8% 감소하는 것으로 전망되었다. 이러한 결과는 지구온난화에 따른 기온 증가와 사막화의 영향에 기인한 것으로 판단된다.

Keywords

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