用EOF分析黑龙江省42a来气温增暖的时空分布特征  

Tme-Space Variable Features of the Warming Analysis by EOF Method during the Last 40a in HeiLongJiang

作　　者：刘刚 白玉兰 刘运武 

机构地区：[1]鹤岗市气象局,黑龙江鹤岗154100

出　　处：《黑龙江气象》2007年第2期7-9,共3页Heilongjiang Meteorology

摘　　要：根据黑龙江省分布相对均匀、资料年代较长的16个代表站的1961～2002年春、夏、秋、冬、年平均气温、平均最高气温和平均最低气温资料,用EOF(经验正交函数)展开和趋势法,分析了黑龙江省42a气温变化状况,得出:黑龙江省在近42a间增温趋势明显,其中平均最低气温增高最为显著。从各季来看,冬季升温幅度最大,并且年平均气温增暖分布为由南向北越来越明显。According to the yearly mean data in different seasons of average as well as maximum ＆ minimum temperature of 16 typical meteorological stations in the period 1961-2002 over HeiLongJiang province, the temperature ehange was calculated with EOF expansion and trend method. We come to the conclusions that the temperatures have risen apparently, especially the mean minimum temperature and the temperature in winter. The warming distribution feature has moved in an uptrend from southern to northern.

关 键 词：气温变化 EOF展开 滑动平均 趋势分析 

分 类 号：P423[天文地球—大气科学及气象学]