摘要
利用沈阳、大连、营口、长春、哈尔滨、黑河6个代表站1905-2001年的月平均气温和月降水观测数据，建立了东北地区近百年来季、年的气温和降水序列。对所建温度和降水序列分别与同一区域内26个代表站的温度序列和51个代表站的降水序列近40年同期资料做了相关分析，检验了序列的代表性。在所建序列的基础上，分析了东北地区百年气温的年代、年和季节等不同时间尺度的变化特点和地域分布特征，以及百年降水量的变化规律，采用谱分析方法探讨了序列的周期性变化特征，并采用Mann-Kendall和Yamamoto方法对经过滑动平均的气温和降水序列进行了突变分析。
The air temperature and precipitation data used by this paper come from six weather stations in Northeast China from 1905 to 2001. These stations all have temperature and precipitation observation about 100 years, they are Shenyang, Dalian, Yingkou, Changchun, Harbin and Heihe. The temperature time series in the area are represented by the average temperature of the six station during 1905-2001. For checking up its representation, correlativity between the average of six stations and the average of twenty six stations was made in this area. The correlative coefficient is very high. The temperature and precipitation time series were applied to analyse the yearly and seasonally climate change in the area. using the method of spectrum analyse, the characteristic of seasonal change of this series was discussed. The connection between the temperature change in Northeast China and the temperature increase of the other area was studied. The climate jumps of annual temperature and precipitation series were tested using Mann-Kendall and Yamamoto methods during the last 100 years in Northeast China.
出处
《气候与环境研究》
CSCD
北大核心
2006年第1期101-108,共8页
Climatic and Environmental Research
基金
科技部公益类专项"气候变暖对东北极端气候事件影响"项目
关键词
东北地区
气候特征
周期变化
突变检测
Northeast China, climate characteristic, periodicity change, jump test
