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      氣候變化研究進(jìn)展 ?? 2007, Vol. 03 ?? Issue (05): 287-292.

      ? 研究短論 ? 上一篇    下一篇

      IPCC AR4模式對(duì)東亞地區(qū)氣候模擬能力的分析

      許崇海 沈新勇 徐影   

      1. 南京信息工程大學(xué) 大氣科學(xué)學(xué)院 中國(guó)氣象局 國(guó)家氣候中心
      • 收稿日期:2006-11-24 修回日期:2007-05-04 出版日期:2007-09-30 發(fā)布日期:2007-09-30
      • 通訊作者: 許崇海

      An Analysis of Climate Change in East Asia by Using the IPCC AR4 Simulations

        

      • Received:2006-11-24 Revised:2007-05-04 Online:2007-09-30 Published:2007-09-30

      摘要: 利用CRU地面溫度、降水的陸地月平均觀測(cè)資料,以及參與IPCC第四次評(píng)估報(bào)告的22個(gè)海氣耦合模式的模擬結(jié)果,分析了這些模式對(duì)東亞地區(qū)當(dāng)前氣候的模擬能力。結(jié)果表明:雖然所有模式對(duì)東亞地區(qū)的氣候都有一定的模擬能力,但各模式模擬效果差異較大;與單個(gè)模式相比,模式集合平均值能更好地反映氣候變化趨勢(shì);多數(shù)模式的溫度模擬值偏低,降水模擬值偏高;對(duì)1980-1999年20 a平均氣候態(tài)空間分布、百年時(shí)間變化分析可以看出,溫度模擬效果比較好,降水模擬較差。

      關(guān)鍵詞: 海氣耦合模式, 氣溫, 降水, 集合平均

      Abstract: Using the CRU monthly data of the surface mean temperature and precipitation, and the output data of 22 AOGCMs participated in IPCC AR4, the preliminary analysis of AOGCMs simulated capability in East Asia for the 20th century has been evaluated in this paper. The results indicate that there are large differences among GCMs, although GCMs have a certain capability to simulate current climate over East Asia. Compared with the single model, the ensemble mean is better. In general, the simulated temperature is lower, and the simulated precipitation is higher than the observations. According to both analyses of spatial distribution of 20-year mean and the time series of the 20th century, the result of simulated temperature is better than that of simulated precipitation.

      Key words: AOGCM, temperature, precipitation, ensemble mean, East Asia

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