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• W2046897219 abstract "본 연구에서는 과거 50년간(1961~2010)의 서울 기후관측지점의 월 및 연별 강수량대비 잠재증발산량의 비인 건조지수의 변화를 분석하고, 과거기간(1971~2000)의 건조지수 대비 기후변화시나리오(RCP 4.5, RCP 8.5)에 따른 미래기간별(2011~2040, 2041~2070, 2071~2100) 건조지수 변화율(%) 분석을 실시하였다. 또한 각기 다른 5개의 잠재증발산량 산정식(FAO P-M식, Penman식, Makkink식, Priestley-Taylor식, Hargreaves식)을 적용하여 잠재증발산량 산정식이 건조지수와 건조지수 변화율(%)에 미치는 영향을 분석하였다. 분석결과에 의하면 RCP 4.5와 8.5 모두에서 과거기간에 비해서 기후변화시나리오에 따른 미래기간에서 월별 강수량, 평균기온 그리고 잠재증발산량이 증가하였다. 또한 잠재증발산량은 겨울철이 여름철과 비교하여 과거기간 대비 미래기간에서 큰 증가를 보였으나, 건조지수는 강수량의 영향으로 잠재증발산량과 다른 양상을 보였다. 따라서 수자원관리 측면에서 미래기후변화에 따른 겨울철 증발산량의 증가에 따른 적절한 대응이 필요하다. 기후변화시나리오를 반영하여 산정된 미래기간의 월 및 연별 건조지수 값은 각기 다른 잠재증발산량 적용식에 따라서 큰 차이를 보였다. 하지만 과거기간대비 미래기간의 월 및 연별 건조지수 변화율(%) 양상은 적용된 잠재증발산량 산정식에 따라서 큰 차이가 없었다. In this study, monthly and annual aridity indices which are the ratios of precipitation to potential evapotranspiration in Seoul climate measurement station were analyzed for past 50 years (1961~2010), and the ratio of aridity index simulated by climate change scenarios (RCP 4.5 and 8.5) for each future period (2011~2040, 2041~2070, 2071~2100) to aridity index for the past period (1971~2000) was analyzed. Furthermore, 5 different potential evapotranspiration equations (FAO P-M, Penman, Makkink, Priestley-Taylor, Hargreaves) were applied to analyze the effect of potential evapotranspiration equation on estimating aridity index and aridity index variation ratio (%). The study results indicate that the monthly precipitation, average temperature and potential evapotranspiration were increased in each future period as compared to past period for both RCP 4.5 and RCP 8.5. Furthermore, winter period showed more significant increase of potential evapotranspiration than summer period, but aridity index showed different patterns as compared with potential evapotranspiration reflecting the influence of precipitation. Therefore, it is necessary to make preparation for the increment of winter evapotranspiration in terms of water resources management. The monthly and annual aridity indices based on future climate change scenarios were greatly different according to potential evapotranspiration equations; however, monthly and annual patterns of aridity index variation ratio (%) in the future period as compared to past period were very similar regardless of applied potential evapotranspiration equation." @default.
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• W2046897219 date "2014-05-31" @default.
• W2046897219 modified "2023-10-14" @default.
• W2046897219 title "Climate Aridity/humidity Characteristics in Seoul According to Changes in Temperature and Precipitation Based on RCP 4.5 and 8.5" @default.
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• W2046897219 doi "https://doi.org/10.3741/jkwra.2014.47.5.421" @default.
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