| 近14a也门降水异常的气候特征 |
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| 引用本文： | 加买尔,龚,陆维松. 近14a也门降水异常的气候特征[J]. 大气科学学报, 2006, 29(6): 847-849 |
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| 作者姓名： | 加买尔 龚 陆维松 |
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| 作者单位： | 南京信息工程大学 大气科学系, 江苏 南京 210044;南京信息工程大学 大气科学系, 江苏 南京 210044;南京信息工程大学 大气科学系, 江苏 南京 210044 |
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| 基金项目： | 国家自然科学基金资助项目(40275016) |
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| 摘 要： | 利用1990-2003年也门7个测站降水资料,在分析近14 a也门降水季节变化特征的基础上,着重分析了也门夏季降水的年际变化特征。结果表明,也门降水异常的季节变化明显,异常在4-9月最大,尤其是7-9月,异常峰值所在月呈现出较明显的提早趋势;近14 a也门夏季降水呈现出增加的趋势,90年代末该趋势加大;近14 a也门夏季降水存在3 a和7 a左右的显著振荡周期。
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| 关 键 词： | 也门 降水异常 季节变化 年际变化 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005-09-15 |
Analysis of Climate Feature of Precipitation Anomalies in Yemen during 1990 2003 |
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| AL-SAYES Gamal Hasan,GONG Yan and LU Wei-song. Analysis of Climate Feature of Precipitation Anomalies in Yemen during 1990 2003[J]. Transactions of Atmospheric Sciences, 2006, 29(6): 847-849 |
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| Authors: | AL-SAYES Gamal Hasan GONG Yan LU Wei-song |
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| Affiliation: | Department of Amtospheric Sciences, NUIST, Nanjing 210044, China;Department of Amtospheric Sciences, NUIST, Nanjing 210044, China;Department of Amtospheric Sciences, NUIST, Nanjing 210044, China |
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| Abstract: | Using the mean monthly precipitation data of recent 14 years at 7 stations in Yemen,seasonal variations of precipitation are studied.On the basis of the analysis on seasonal features of precipitation,interannual variations of summer rain fall are emphatically investigated.Results show that precipitation in Yemen has obviously seasonal changes with large positive anomalies in summer(April to September),especially in July,August,and September,and that the anomalies peak month moves up.In the last 14 years,summer precipitation takes on an increasing dency,which is more obvious in recent years.Summer precipitations anomalies exhibit remarkably interannual variation periods of about 3 and 7 years. |
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| Keywords: | Yemen precipitation anomaly clmiate feature |
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