| 东北地区夏季降水和气温时空分布特征 |
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| 引用本文： | 李俊乐,吕志红,全美兰,吴春英,张莹.东北地区夏季降水和气温时空分布特征[J].中国农学通报,2015,31(13):258-266. |
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| 作者姓名： | 李俊乐 吕志红 全美兰 吴春英 张莹 |
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| 作者单位： | 辽宁省抚顺市气象台,辽宁省抚顺市气象台,辽宁省抚顺市气象台,辽宁省大连市长兴岛气象局,辽宁省抚顺市清原满族自治县气象局 |
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| 基金项目： | 抚顺市科学技术发展资金计划项目“抚顺市农业气象灾害研究”（FSKJHT201393）资助 |
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| 摘 要： | 为研究东北地区夏季降水和气温的时空分布特征,基于1951—2010年国家气候中心提供的160站月降水及气温资料,利用经验正交函数分析方法及小波分析方法对东北地区的降水、气温场的时空分布特征进行诊断分析。结果表明:东北地区夏季降水量场主要表现为全区一致型、南北差异型、东西差异型及中部差异型,东北地区气温场主要表现为全区一致型及南北差异型,且均存在明显的振荡变化。东北地区夏季降水及气温存在显著不同的多时间尺度振荡周期,降水量存在29年的主周期,气温存在28年的主周期。
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| 关 键 词： | 东北地区 降水 气温 |
| 收稿时间： | 2014/11/1 0:00:00 |
| 修稿时间： | 2/3/2015 12:00:00 AM |
Spatial and Temporal Distribution Characteristic Of Summer Precipitation and Air Temperature Field in Northeast China |
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| Abstract: | In order to study the spatial and temporal distribution characteristic of summer precipitation and
air temperature in northeast China, based on the 160 stations monthly precipitation and temperature observations in national climatic data center from 1951 to 2010, we used empirical orthogonal function analysis and wavelet analysis method to discuss it. The results show that the summer precipitation in northeast China mainly exist the same anomaly in whole area, opposite anomalies in the south and north or in the east and west or in middle area , the air temperature in northeast China mainly exist the same anomaly in whole area, opposite anomaly in the south and north, and there is significant changes in volatility. Summer precipitation and air temperature in northeast China exist significantly different time scales oscillation period, the precipitation has 29a primary period, the temperature has 28a primary period. |
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| Keywords: | Northeast China Region Precipitation Air Temperature |
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