Because the mass of the atmospheric column over the TP is much lighter than other regions, the diurnal change of solar radiation heating causes more significant circulation variation over the TP.

• 由于高原上空大气柱质量远小于低海拔的平原地区，故太阳辐射日变化引起的加热日变化可在高原地区产生更为显著的环流日变化。