| 山东省伏期旱涝评定及其振荡特征分析 |
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| 引用本文： | 李君,李淑玲.山东省伏期旱涝评定及其振荡特征分析[J].山东气象,2005,25(3):5-7. |
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| 作者姓名： | 李君 李淑玲 |
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| 作者单位： | 淄博市气象局,山东,淄博,255033 |
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| 摘 要： | 利用山东省伏期降水量资料，用Z指数法划分山东伏期旱涝等级，评定伏期极端旱涝年，并与山东省全年、夏季降水的演变进行比较，发现伏期降水的阶段性特点比较明显，而干旱化趋势不明显，存在10年和2～3年的显著周期。
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| 关 键 词： | 伏期 Z指数 振荡周期 |
| 文章编号： | 1005-0582（2005）03-0005-03 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005年4月20日 |
Analyzing the Evaluation and Oscillation Characteristics of Flood and Drought Grades in Mid- Summer in Shandong province |
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| LI Jun,LI Shu-ling.Analyzing the Evaluation and Oscillation Characteristics of Flood and Drought Grades in Mid- Summer in Shandong province[J].Journal of Shandong Meteorology,2005,25(3):5-7. |
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| Authors: | LI Jun LI Shu-ling |
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| Abstract: | Based on the rainfall data in mid-summer in Shandong province, the flood and drought years are measured with Z index grads. The result are compared with that of whole year and whole summer in Shandong province. Founding characters of phasic changing are clearer , but the trend to becoming drought is weaker, And it is found that there are 2-3 years and 10 years periodic variations both in the rainfall data in mid-summe. |
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| Keywords: | mid-summer Z index periodic variation |
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