| 华南冬季异常冷月预测概念模型Ⅰ──500 hPa高度场和海温场特征 |
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| 引用本文： | 吴尚森,梁建茵.华南冬季异常冷月预测概念模型Ⅰ──500 hPa高度场和海温场特征[J].热带气象学报,2000,16(3):193-201. |
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| 作者姓名： | 吴尚森 梁建茵 |
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| 作者单位： | 广州热带海洋气象研究所,广东广州 |
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| 基金项目： | 国家“九五”重中之重科技项目"我国短期气候预测系统的研究"96-908-04-3和96-908-05-07 |
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| 摘 要： | 确定了近４５年华南冬季异常冷月出现的时间，分析了其同期至前期６个月５００ｈＰａ位势高度场和海温场的特征。各异常冷月当月５００ｈＰａ高度场有相似的特征，亚洲－太平洋地区高度场的特征是北高南低，经向环流发展，给出了前期５００ｈＰａ高度场差异显著月的距平特征。华南冬季各异常冷月至其前期６个月海温距平分布有持续性的特征，１月及其前期１～６个月赤道东太平洋ＳＳＴ呈ＥｌＮｉｎｏ特征，２月和１２月呈Ｌａ Ｎｉｎ
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| 关 键 词： | 华南冬季异常冷月 海温场 高度场 寒潮预测 |
| 文章编号： | 1004-4965(2000)03-0193-09 |
| 收稿时间： | 1999/10/19 0:00:00 |
| 修稿时间： | 1999年10月19 |
SCHEMATIC PREDICTIVE MODEL FOR EXTREMELY SEVERE COLD MONTHS IN SOUTH CHINA WINTER |
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| WU Shang-sen and LIANG Jian-yin.SCHEMATIC PREDICTIVE MODEL FOR EXTREMELY SEVERE COLD MONTHS IN SOUTH CHINA WINTER[J].Journal of Tropical Meteorology,2000,16(3):193-201. |
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| Authors: | WU Shang-sen and LIANG Jian-yin |
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| Institution: | Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080, China;Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080, China |
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| Abstract: | The work sets the time for the occurrence of extremely severe cold months over the past 45 years in South China winter and studies the 500 hPa geopotential fields and SST fields in and before the months. The months have similar 500 hPa heights; higher in the north and lower in the south in the Asian-Pacific region, indicating meridianal evolution of the circulation. The work also gives the anomalies for months that have significant differences in the 500 hPa field in periods prior to the extremely severe cold months. Persistence is found in the SST anomalies in the current month and 1-6 months before them: January is featured by the EI Nino event and February and December by La Nina. |
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| Keywords: | Extremely severe cold months of South China winter 500 hPa geopotential field SST fields characteristics |
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