生态学杂志2017，Vol.36Issue(11)：3224-3234,11.DOI:10.13292/j.1000-4890.201711.038
1961-2015年吉林省极端气温指数时空变化特征
Spatiotemporal change characteristics of extreme temperature indices in Jilin Province during 1961-2015
摘要
Abstract
Based on the data of 50 meteorological stations in Jilin Province during 1961-2015,the variations of extreme temperature indices were analyzed.The result showed that warm days,warm nights,frost days,warm spell duration days,daily temperature range,annual maximum value of daily maximum and minimum increased from west to east in Jilin Province.Summer days,warm nights and cold duration spell days decreased from west to east,while ice days increased from south to north.Cold days,cold nights,frost days,cold spell duration days and daily temperature range were found to decrease significantly by 0.75 d · 10 a-1,2.34 d · 10 a-1,3.15 d · 10 a-1,1.67 d · 10 a-l and 0.23 ℃ · 10 a-1 respectively;warm days,warm nights,summer days,hot nights,annual maximum value of daily minimum,annual minimum value of daily maximum,warm spell duration days and growing season length showed statistically significant increasing trends at rates of 0.76 d · 10 a-1,1.55 d · 10 a-1,2.34 d · 10 a-1,1.62 d · 10 a-1,0.16 ℃ · 10 a-1,0.57 ℃ · 10 a-1,0.80 d · 10 a-1 and 3.22 d · 10 a-1 respectively.It was found that the most extreme temperature indices had an abrupt change in the 1980s,the cold indices decreased and warm indices increased after the change.The main period of the most extreme temperature indices was 3 years.When the longitude increased by 1 degree,the cold spell duration days,summer days,and hot nights decreased by 0.2,5.2 and 2.3 d,respectively.When the latitude increased by 1 degree,the cold spell duration days,ice days,summer days,warm nights,annual maximum value of daily maximum,annual maximum value of daily minimum increased by 0.5 d,4.2 d,5.3 d,2.3 d,0.7 ℃,0.5 ℃,respectively.When the altitude increased by 100 m,the cold spell duration days,growing season length,summer days,and hot nights decreased by 0.4,1.8,5.8,2.9 d,respectively.关键词
极端气温/气候变化/突变/周期变化/吉林省Key words
extreme temperature/climate change/abrupt change/periodic change/Jilin province引用本文复制引用
任景全,郭春明,刘玉汐,穆佳,李建平,李琪..1961-2015年吉林省极端气温指数时空变化特征[J].生态学杂志,2017,36(11):3224-3234,11.基金项目
公益性行业(气象)科研专项(GYHY201206018,GYHY201506001)、吉林省重点科技攻关项目(20150204014NY)和吉林省气象局青年基金项目(201602)资助. （气象）
