Changes of Maximum and Minimum Temperature for Recent 100 Years in Shandong Province
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Abstract:
The detailed analysis is carried out in terms of mean annual and seasonal maximum and minimum temperature series of Jinan (1919—2002) and Qingdao (1900—2002).The results indicate that the annual minimum and mean temperature have obviously increased,and the increasing rate of the former has exceeded that of the latter. Increasing trend of maximum temperature has occurred in Qingdao; while decreasing trend has happened in Jinan. There were two abrupt warming in Jinan and Qingdao,i.e.1930s and 1980s. 1930s warming occurred in daytime,1980s warming mainly happened in nighttime. Because of the asymmetric change of in maximum and minimum temperature,the diurnal temperature ranges become smaller in the second warming period than that of the first.