摘要
基于1981—2015年四川省149个国家气象观测站逐日平均气温资料，计算0～35℃每1℃范围内的活动积温，并对其变化特征进行分析。结果表明：四川省平均和各站点各温度范围内积温随温度呈单峰曲线变化，全省平均积温峰值温度为23℃，各站8—26℃，呈自低海拔向高海拔递减的趋势，其递减率为0．41℃／100m；积温峰值温度与活动积温的空间分布总体相似，活动积温每增加1000℃·d，积温峰值温度升高3℃，但攀西地区气候特点与其他地区不同，该地四季温暖，气温年较差小，总活动积温大，但积温峰值温度不大；积温峰值温度，总活动积温均与海拔高度线性负相关，海拔越高，积温峰值温度和总活动积温越小；四川省总活动积温线性增加，气候倾向率120℃·d／10a，0～15℃积温减少，16—35cc积温增加。
Based on 149 National Meteorological Observation Stations daily mean air temperature data from 1981 to 2015 in Sichuan Province, we calculated 0 to 35 ℃ per 1 degree Celsius range of active accumulated tem- perature and analyzed the characteristics of its changes. The results show that： The accumulated temperature in each DEG C of average in Sichuan and all stations changed with a single peak curve, the province＇s average accu- mulated temperature peak is 23 ℃, and each station was between 8 ℃ and 26 ℃, which linearly dropped in eleva- tion by 0.41 ℃/100 m; The spatial distribution of accumulated temperature peak was similar to that of active accu- mulated temperature, active accumulated temperature for each additional 1 000 ℃ · d, accumulated temperature peak rose by 3 ℃, but the climatic characteristics of the of Panzhihua - Xichang area are different from other re- gions, this area is warm all year round, with small annual temperature range and high total active accumulated tem- perature, but accumulated temperature peak wasnt very high; The accumulated temperature peak, active accumu- lated temperature were correlated with altitude negative linear, the higher the altitude, the lower the accumulated temperature peak and active accumulated temperature; the active accumulated temperature increased linearly in Si- ehuan Province, the climate tendency was 120 ℃ ·d/10 a, 0 to 15 ℃ the accumulated temperature decreased, 16 to 35 ℃ the accumulated temperature increased.
出处
《贵州气象》
2016年第6期42-47,共6页
Journal of Guizhou Meteorology
关键词
热量资源
积温
积温峰值温度
四川
heat resources
accumulated temperature
accumulated temperature peak
Sichuan
