| 海温对辽宁省主汛期降水异常影响的统计分析 |
| |
| 引用本文： | 杨文艳,王谦谦.海温对辽宁省主汛期降水异常影响的统计分析[J].南京气象学院学报,2005,28(3):404-409. |
| |
| 作者姓名： | 杨文艳 王谦谦 |
| |
| 作者单位： | 1. 南京信息工程大学,大气科学系,江苏,南京,210044;盘锦市气象局,辽宁,盘锦,124010
2. 南京信息工程大学,大气科学系,江苏,南京,210044 |
| |
| 基金项目： | 国家自然科学基金资助项目(40233037) |
| |
| 摘 要： | 在对辽宁省主汛期降水异常的时变特征进行分析的基础上，研究了前期海温场对辽宁主汛期(7—8月)降水影响的统计特征。结果表明：1)辽宁省汛期降水异常有明显的年际、年代际变化特征，近44a降水呈减少趋势。小波分析表明存在3～5a的年际周期和10～12a的年代际周期。2)存在2个影响辽宁汛期降水异常的海温关键区及相应的关键时段，它们分别是南大西洋(1—5月)和西太平洋(3—4月)，综合考虑2个关键区可更好地预示辽宁汛期降水的异常。
|
| 关 键 词： | 辽宁省 主汛期降水 海温异常 关键区 关键时段 |
| 文章编号： | 1000-2022(2005)03-0404-06 |
Statistical Analysis of the Effect of Sea Surface Temperature Anomaly on Flood Season Precipitation in Liaoning Province |
| |
| YANG Wen-yan,WANG Qian-qian.Statistical Analysis of the Effect of Sea Surface Temperature Anomaly on Flood Season Precipitation in Liaoning Province[J].Journal of Nanjing Institute of Meteorology,2005,28(3):404-409. |
| |
| Authors: | YANG Wen-yan WANG Qian-qian |
| |
| Institution: | YANG Wen-yan~ |
| |
| Abstract: | Statistical features of the impact of the previous sea surface temperature anomalies (SSTA) on the main flood season(July to August) precipitation in the Liaoning Province are found in this paper based on a background analysis of the temporal variation of the precipitation.Results show that the precipitation has obvious inter-annual and inter-decadal decrease trends in the recent 44 years.There are 35-year inter-annual and 1012-year inter-decadal periods as depicted with the wavelet analysis.Two key SSTA areas and their key time periods are found,one is the south Atlantic and the other is the western Pacific.By combination of the SSTA variations in the two sea areas,the main flood season precipitation anomaly in Liaoning Province might be better predicted. |
| |
| Keywords: | Liaoning Province main flood season precipitation SSTA key areas key periods |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
