|
|||||
|
|
| 1956～2011年华北地区气温和降水变化特征 | |
| 引用本文： | 张永欣,宋明,杨艳娟.1956～2011年华北地区气温和降水变化特征[J].安徽农业科学,2013(2):726-728. |
| 作者姓名： | 张永欣 宋明 杨艳娟 |
| 作者单位： | 1. 天津市气象技术装备中心,天津,300074 2. 天津市气象信息中心,天津,300074 3. 天津市气候中心,天津,300074 |
| 摘 要： | 利用1956～2011年的气候资料,对近56年来华北地区的气温和降水变化特征进行分析。结果表明,近56年来华北地区年平均气温显著升高,升幅为0.314℃/10a,降水量显著减少,减幅为16.329 mm/10a。气温、降水量均呈东北—西南走向分布,其变化趋势具有全区性,华北大部分地区气温呈升高趋势,降水量呈减少趋势。经M-K检验,华北地区气温变化在1988年存在一个突变点,1988年后华北地区平均气温增幅达1.1℃;降水量在1981年发生突变,华北进入降水偏少时期。 |
| 关 键 词： | 华北地区 气温 降水 特征分析 |
The Change Characteristic of Temperature and Precipitation in the North China during 1956 and 2011 |
|
| Institution: | ZHANG Yong-xin et al(Tianjin Meteorological Technology Equipment Centre,Tianjin 300074) |
| Abstract: | By using meteorological data during 1956-2011,the temperature and precipitation vaiation characteristics in north China were analyzed.The results showed that the annual mean temperature in north China significantly increased in recent 56 years by the rate of 0.314 ℃/10a.Annual precipitation was significantly reduced by the rate of 16.329 mm/10a.Both temperature and precipitation are in northeast to southwest distribution,and the changing trends in most regions are consistent with temperature rise while precipitation decreased.The abrupt change of temperature occurs around 1988,after which the temperature increased by 1.1 ℃.The abrupt change of precipitation occured around 1981,after which the precipitation of the north China turn into less period. |
| Keywords: | North China Temperature Precipitation Characteristic analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |