AGCM response to NP SSTa Characteristics Diagnostics (over cold SSTa) T213 Response summary  Equivalent barotropic low  Upward heat flux reinforcing the SSTa in some regions  Accelerated jet stream  Deep convection  Deep diabatic heating  Enhanced storm-track  Convergence of eddy vorticity flux is balanced by divergence in circulation, resulting in ascent at mid-levels and low-level convergence.
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