Land surface temperature is one of the key parameters that directly reflects the thermal condition of the land surface and plays a crucial role in land-atmosphere interaction (Li & Yanai, 1996; Liu et al., 2009) . As the largest continent, the Eurasian continent has experienced dramatic climate change in recent decades, particularly significant warming in warm seasons (Cohen et al., 2012a; Hansen et al., 2010) . After the mid-1990s, a predominant amplified warming has been observed in the

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... itudes of the Eurasian continent, particularly in Europe-West Asia and Northeast Asia. Therefore, Europe-West Asia and Northeast Asia have been recognized as two key regions with evident non-uniform land surface warming over Eurasia (Dong et al., 2016 (Dong et al., , 2017;; Hong et al., 2017; Sutton & Dong, 2012) . Considering the high population density and socioeconomic importance, it is necessary to better understand the causes of the LST anomalies over Eurasia. Great effort has been made to investigate the possible causes of the recent land surface warming over Eurasia, especially in the two key regions. The associated mechanisms can be generally classified into two types: atmospheric external forcing and atmospheric teleconnection patterns. On the one hand, previous research has emphasized the role of different atmospheric external forcings in the interdecadal increase of LST, including the boundary conditions such as the North Atlantic and North Pacific sea surface temperature (SST;