关键词: 草面温度, 地面温度, 气温, 不同气象条件

Abstract:

Abstract:Based on the daily temperature observation data of 5 stations in Shijiazhuang from 2008 to 2010，the average，extreme values and daily ranges of grass land temperature，as well as relationships between grass land temperature，ground temperature and air temperature under various meteorological conditions were analyzed．The results show that annual average of grass land temperature presented low in the north and high in the south，and highest in the south－west mountainous region．The maximum of annual mean grass land temperature was highest in the central region，the minimum of annual mean grass land temperature was lowest in the southwest mountainous region．The daily range of grass land temperature was affected by latitude，season and geographical conditions，and the diurnal amplitude was biggest in the central region．The diurnal amplitude of ground temperature was maximum，but minimum for air temperature．There was a positive correlation between grass land temperature and air temperature，ground temperature in a little cloudy days．The absolute difference of annual average value between ground temperature and grass land temperature was maximum when ground was covered with snow，but minimum in rainy days．

Key words: ground temperature, air temperature, Shijiazhuang, grass land temperature