| 东北北部夏季旱涝形成机理的数值研究 |
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| 引用本文： | 邹立尧,王咏青,马镜娴,张立,范水勇.东北北部夏季旱涝形成机理的数值研究[J].南京气象学院学报,2001,24(1):127-136. |
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| 作者姓名： | 邹立尧 王咏青 马镜娴 张立 范水勇 |
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| 作者单位： | 1. 黑龙江省气象中心,
2. 南京气象学院大气科学系, |
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| 基金项目： | 黑龙江省自然科学基金项目“黑龙江作物生长季旱涝形成机制研究”资助 |
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| 摘 要： | 根据 1 95 8～ 1 996年黑龙江省 38个代表站历年降水量资料和同期北半球 2 .5°× 2 .5°格点 5 0 0 h Pa位势高度资料 ,分别求出了干旱和洪涝年份 7、8月的流型 ,指出东北北部盛夏旱涝的形成与东亚由冬至夏的季节转换联系密切。用北半球正压模式实施 4组积分时间为 30个模式日的数值试验 ,成功地模拟了 7、8月干旱和洪涝流型的形成和持续过程 ,并分析了与旱涝流型相应的热源强迫场的不同特征
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| 关 键 词： | 夏季 干旱 洪涝 数值试验 长期预测 东北地区 降水 形成机理 |
| 修稿时间： | 2000年1月11日 |
Numerical Study on the Mechanism of Summer Flood and Drought in Northern Northeast China |
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| Zhou Liyao,Wang Yongqing,Ma Jingxian,Zhang Li,Fan Shuiyong.Numerical Study on the Mechanism of Summer Flood and Drought in Northern Northeast China[J].Journal of Nanjing Institute of Meteorology,2001,24(1):127-136. |
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| Authors: | Zhou Liyao Wang Yongqing Ma Jingxian Zhang Li Fan Shuiyong |
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| Institution: | ZHOU Li\|yao 1,WANG Yong\|qing 2,MA Jing\|xian 2,ZHANG Li 2,FAN Shui\|yong 2, |
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| Abstract: | Based on 1958～1996 rainfall over 38 stations in Heilongjiang province and 2.5 °×2.5 ° geopotential height at 500 hPa data,the flow patterns in July,August are revealed for flood and drought years with the close relation discovered between the formation of summer flood/drought in Heilongjiang and the seasonal conversion of circulation in east Asia from winter to summer. Four group experiments with the integration of 10 days are carried out by using a barotropic model, which simulate successfully the formation and maintenance of the flow patterns of flood/drought in July,August. The features are also investigated of the heat source forcing relative to the flow patterns of flood/drought. |
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| Keywords: | flood/drought in summer numerical experiment long term prediction |
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