云南高原楚雄市SO2浓度变化与热岛效应的关系研究

选取2001～2006年楚雄市及其郊区的气象资料，采用对比分析法对楚雄市的热岛效应情况进行了分析，得出楚雄市冬季热岛强度的日变化幅度较大，夏季热岛强度的13变化幅度较小，总的变化趋势是：夜间02时达到最大，以后温差逐渐减小，到下午14时达到最小，之后热岛强度又逐渐增强。在月际变化中楚雄市的热岛强度以2、3、4月份最强，以6、7、8月份最弱，这与中国北京、上海等部分大城市的热岛效应强度变化有显著差异。采用相关分析法对楚雄市SO2浓度变化与热岛效应强度变化之间的关系进行分析，得出楚雄市SO2浓度变化与热岛效应强度变化之间存在着线性正相关关系，其相关系数达0．626。

THE CORRELATION BETWEEN THE CONCENTRATION ALTERATIONOF SO2 AND HOT ISLAND EFFECT ON THE CHUXIONG CITY OF YUNNAN PLATEAU

Based on the meteorologic information of Chuxiong City and its suburban area from 2001 to 2006, using comparative analysis approach, this paper does analysis on the hot island effect of Chuxiong City and comes to the conclusion that in winter the daily changing amplitude of hot island effect of Chuxiong City comes to the greatest value while vise versa in summer. The general changing trend is that the hot island effect comes to the utmost value at 2：00 in night and decreases gradually, comes to the lowest at 14：00 in the afternoon and increases gradually. The hot island effect is strongest in February, March and April in view of monthly changing amplitude, and is weakest in June, July and August which is crucially different with that of Beijing, Shanghai and other big cities. This paper does analysis on the relationship of concentration of SO2 of Chuxiong and hot island effect based on the comparative analysis method and comes to the conclusion that the concentration of SO2 of Chuxiong and hot island effect is linear positive correlated, in which the correlation coefficient is 0. 626.