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      氣候變化研究進展 ?? 2007, Vol. 03 ?? Issue (05): 299-302.

      ? 研究短論 ? 上一篇    下一篇

      氣候模擬數(shù)據(jù)的訂正與應(yīng)用 --以北京為例

      鄭祚芳 張秀麗 曹鴻興 謝莊 徐影   

      1. 中國氣象局北京城市氣象研究所 中國氣象科學(xué)研究院 中國氣象局 國家氣候中心
      • 收稿日期:2007-01-09 修回日期:2007-02-12 出版日期:2007-09-30 發(fā)布日期:2007-09-30
      • 通訊作者: 鄭祚芳

      Revision and Use of Simulated Climate Data-A case study for Beijing

        

      • Received:2007-01-09 Revised:2007-02-12 Online:2007-09-30 Published:2007-09-30

      摘要: 為了消除氣候模擬數(shù)據(jù)中氣候平均值和氣候變率的漂移,發(fā)展了一種新的數(shù)據(jù)訂正方案。應(yīng)用該方案對IPCC提供的B2情景下北京未來100 a氣候預(yù)估值進行了訂正試驗,證實了方案的可用性。在此基礎(chǔ)上分析了北京未來氣候變化特征,結(jié)果表明:21世紀(jì)北京氣溫將繼續(xù)上升,升溫速率約為0.31℃/10 a,最低、最高氣溫的非對稱變化仍將持續(xù);未來北京年降水量呈微弱下降趨勢,下降速率約為1.03 mm/10 a。

      關(guān)鍵詞: 氣候變化, 氣候平均值, 氣候變率, 漂移, 預(yù)估, 北京

      Abstract: A new method for revising simulated climate data, which can remove both shifts of climate mean and variability, was developed in this work. The method can adjust the simulated value to the observed one. An attempt of applying the simulations under the B2 scenario in the IPCC data bank was made, which took the future 100 years projection of Beijing as a case, and the utility of the revision method was proved. By analyzing feature of Beijing's climate change in the future, it is shown that the temperature would still rise in the 21st century, its change rate would be about 0.31℃/10 a, the non-symmetrical characteristics of minimum- maximum temperature would continue. The precipitation has a weak decrease trend with the rate of 1.03 mm /10 a.

      Key words: climate change, climatic mean value, climatic variability, shift, data revision, projection, Beijing

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