近53a商洛地区四季变化特征分析

Analysis of Changing Characters of Four Seasons in Shangluo in Recent 53 Years

利用商洛气候观测站1961-2013年逐日气温观测资料,定义适用商洛的四季划分方法,分析了近53a来商洛四季开始时间、季节长度、平均气温、平均最高气温、最低气温的变化,并给出了四季气温与入季时间、季节长度的相关性分析。结果表明:近53a商洛入春时间提早,入夏时间略推迟;春季长度明显增加,其他3个季节略微减少;春季、秋季和冬季平均气温增高,夏季下降;秋季和春季平均最高气温增高;春季平均最低气温下降;春季入季时间与平均气温和平均最低气温成正相关,夏季入季时间与平均气温、最高气温成负相关,秋季入季时间与平均气温和最低气温成负相关;冬季长度与平均气温成正相关,夏季长度与最高气温成正相关。

Using Shangluo climate observation stations from 1961 to 2013 on the daily temperature data,defined for Shangluo four seasons division method, analyzed nearly 53 years in Shangluo the change time of four seasons,the length of the season, the average temperature, average maximum temperature, minimum temperature, and gave the correlation analysis of the temperature of the four seasons and season time, season length. The results showed that in 53 years, Shangluo spring ahead of time, summer time slightly delayed; spring length significantly increased, the other three seasons slightly reduced; in spring, autumn and winter average temperature increased, decreased in summer, autumn and spring average maximum temperature in- creased;the average minimum temperature in spring decreased;spring into the season time and average temperature and the average minimum temperature are positively related;the summer into the season time and average temperature, maximum temperature are negative correlation, fall into the season time and average temperature and minimum temperature are negative correlation ;the length of the winter and average temperature are positively related,summer season and the highest temperature are positive correlation.