太湖局地小气候特征

利用2004年12月至2009年2月无锡马山自动站和无锡学前街自动站气温数据,分析了太湖地区局地小气候的变化特征。结果表明:太湖地区局地小气候特征非常显著,总体上表现为年际、季际、月际和各时段的平均气温较其他地区异常偏低。但在不同的气象条件背景下如晴天、雨天和各种特殊天气存在不同的特点。晴天太湖地区主要表现为气温偏低;雨天春夏秋季主要表现为气温偏高而冬季表现为气温偏低。高温、暴雪天气条件下,太湖地区主要为气温偏低但强度上存在很大的差异,而寒潮天气条件下太湖地区气温相较其他地区则时高时低。

Local microclimate characteristics near Tai Lake

Based on air temperature of two automatic stations from December 2004 to February 2009, the local microclimate characteristics near Tai Lake were analyzed. The results indicate that the local microclimate characteristics near Tai Lake are obvious. Annual, seasonal, monthly and different period’s average air temperatures near Tai Lake are lower than those in the adjacent regions. The characteristics of air temperature are different under different weather conditions such as sunny days, rainy days or other special weathers. Air temperature near Tai Lake is lower under sunny day. It is higher under rainy days in spring, summer and autumn, while it is lower in winter. Air temperature near Tai Lake is lower than those in the adjacent regions under high temperature and snowstorm weather, while variation range of air temperature is of large difference. Air temperature near Tai Lake is sometimes high or sometimes low under cold wave weather.