摘要
利用河南省107个观测站1961-2006年46a的气温观测资料，分析了河南省冷暖变化的年际和年代际特征及其区域差异和季节差别。结果表明：河南省年平均气温、年平均最高气温、年平均最低气温的年际和年代际变化都呈现增温趋势，增温幅度由大到小依次为年平均最低气温、年平均气温、年平均最高气温；全省7个气候分区年平均气温、最低气温变化趋势具有整体一致性，都呈现升温趋势，但各区域的增温幅度不一，增幅最大的区域是太行山气候区，最小的区域是豫西山地气候区，平均最高气温南阳盆地、淮北平原、豫北平原3个气候区呈略降趋势，其他4个气候区呈升温趋势，豫西山地气候区增幅最大；各季气温变化呈现春、秋季平均气温变化幅度相对比较平缓、冬季增温幅度最大的特点，自20世纪90年代初始，暖冬现象明显；在全球和中国气候将继续变暖的背景下，河南省平均气温按10a增加0．22℃计．估计未来50a升高1～2℃。
The yearly and decadal characteristics and their regional and seasonal differences of cold and warm change in Henan province have been analyzed in this article, which is based on the temperature of 107 observation stations of Henan province from 1961 to 2006. The result indicates that the yearly and decadal change of the yearly average temperature, the yearly average maximum temperature and the yearly average minimum temperature have a warming trend, and the order of warming amplitudes from big to small are the yearly average minimum temperature, the yearly average temperature and the yearly average maximum temperature. The change trend of the whole provincial yearly average and minimum temperature have whole consistency with the change trend of its seven partitions, and they all present a warming trend but have different warming amplitudes in each district. The big rate of increase amplitude is the climate area of Taihang Mountain, and the low rate of increase amplitude is mountain climate region in the west of Henan province. The average maximum temperature has slightly decrease trend in Nanyang Basin, Huaibei Plain, and Northern Henan Plain, however, the other four climate regions has increase trend and the West Mountains of Henan has the big increase amplitude. The spring and autumn temperature have gentle changing amplitude, and the winter temperature has large increase amplitude. There is obvious warm winter since the beginning of 90＇ s. The average temperature has a increase rate of 0.22 ~C every 10 years on the background of climate warming of global and China, and it＇ 11 increase 1℃ or 2 ℃ in the next 50 years.
出处
《气象与环境科学》
2008年第B09期11-14,共4页
Meteorological and Environmental Sciences
关键词
冷暖变化
时空分布特征
区域差别
季节差异
cold and warm change
characteristics of temporal and spatial distribution
regional difference
seasonal difference
