Thermal Adaptation, Overshooting, Dispersion, and Subtropical Anticyclone Part II: Horizontal Inhomogeneous Heating and Energy Dispersion
热力适应、过流、频散和副高II.水平非均匀加热与能量频散

Based upon potential vorticity theory and thermal adaptation principle, the feature of atmospheric motion as a result of spatial inhomogeneous diabatic heating is investigated. It is further clarified that, due to the variation of the vertical gradient of strong convective condensation heating, the distribution of cyclone and anticyclone in upper troposphere is out of phase with that in the middle and lower the troposphere. On the basis of these results, the impacts of horizontal inhomogeneous heating on the circulation are discussed. It is shown that to the north of a heating region, although there is no diabatic heating, there still exists deep negative vorticity forcing due to the horizontal inhomogeneous in the westerly flow. Air convergence in the low level and divergence in the upper level are induced. This generates ascent as well as negative vorticity source, which corresponds to a strongly anomaly antic yclone center appearing to the north of the heating region. This negative vorticity source can propagate in the westerly flow through energy dispersion and affect the circulation in mid-high latitudes.