| 小兴安岭五营林区近49a气候变化趋势及突变分析 |
| |
| 引用本文： | 程春香,李晶,孙鹏飞.小兴安岭五营林区近49a气候变化趋势及突变分析[J].黑龙江气象,2010,27(4):9-12. |
| |
| 作者姓名： | 程春香 李晶 孙鹏飞 |
| |
| 作者单位： | [1]成都信息工程学院,四川成都610225 [2]五营气象局,伊春黑龙江153033 [3]伊春市气象局,黑龙江伊春153000 |
| |
| 摘 要： | 利用1958～2006年五营林区的地面资料,采用气候倾向率、累积距平、信噪比等气候统计方法,研究了近49a五营气候的变化趋势、气候突变和异常年份等。结果表明:五营林区近49a气候明显变暖,雪季升温较雨季快。降水量异常的年份增加,年降水量呈显著减少的趋势,-22.44mm/10a。前后10a降水中心生了明显的时空变化。雨季降水日数、年平均气温分别在1974年、1987年发生了气候突变。
|
| 关 键 词： | 气候倾向率 异常年份 气候突变 |
Analyses of the Climate Change Tendency and Abrupt Climate Change in Wuying, Xiaoxing'an Mountain in Recent 49 Years |
| |
| Cheng Chun-xiang,Li Jing,Sun Peng-fei.Analyses of the Climate Change Tendency and Abrupt Climate Change in Wuying, Xiaoxing'an Mountain in Recent 49 Years[J].Heilongjiang Meteorology,2010,27(4):9-12. |
| |
| Authors: | Cheng Chun-xiang Li Jing Sun Peng-fei |
| |
| Institution: | 1. CAS, Chengdu University of Information Technology, Si chuan Chengdu 610225 ;2 Wuying Meteorological Bureau , HeiLongjiang Wuying 153033 ; Yichun Meteorological Bureau, HeiLongjiang Yichun 153000) |
| |
| Abstract: | The variation trend, abrupt change and anomalous years of climate in wuying were investigated during the period from 1958 to 2006 by using modern statistical diagnostic methods such as linear trend analysis, accumulated variance and signal noise ratio methods. The main results are as follows： In terms of linear trend, annual lbrecipitation displayed a significant decreasing trend in wuying in past 49 years, and it indicated an decrease of -22. 44 mm/10 a. the temperatures had a significant increasing trend, which was maximum in Snow Season, minimum in rainy season. The abrupt change of precipitation days of rainy season occurred in 1974 and the abrupt change of annual mean temperature appeared in 1987. |
| |
| Keywords: | wuying linear trend anomalous years climate abrupt change |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
