青藏高原中东部地表感热趋势转折特征及成因分析
张璐,王慧,石兴东,李栋梁

Characteristics and Causes of Surface Sensible Heat Trend Transition in Central and Eastern Qinghai-Xizang Plateau
Lu ZHANG,Hui WANG,Xingdong SHI,Dongliang LI
表1 青藏高原各分区地表感热及其相关气象要素在趋势转折前后的气候倾向率
Table 1 Climatic tendency rates of the surface sensible heat flux, surface temperature, air temperature, surface-air temperature difference and surface wind speed before and after the trend transition of annual-mean surface sensible heat flux in four zones
要素时间各区域的趋势转折前后的气候倾向率
Ⅰ区(2000年)Ⅱ区(1999年)Ⅲ区(2002年)Ⅳ区(2000年)
感热通量/[W·m-2·(10a)-1]转折前-3.01**-1.97**-3.53**-4.20**
转折后2.93**3.02**2.97**2.63**
地表温度/[℃·(10a)-1]转折前0.50**0.29*0.36**0.23
转折后0.60**0.64**0.39*0.33
气温/[℃·(10a)-1]转折前0.67**0.340.37**0.30
转折后0.210.37**0.260.34*
地气温差/[℃·(10a)-1]转折前-0.17**-0.050-0.07
转折后0.39**0.27**0.130.01
地面风速/[m·s-1·(10a)-1]转折前-0.18**-0.30**-0.42**-0.35**
转折后0.030.18**0.28**0.18**