The deep tropics are characterized by weak Coriolis force, so unlike mid-latitudes (where diabatic heating is balanced largely by horizontal temperature advection under quasi-geostrophic balance), tropical diabatic heating from moist convection is primarily balanced by vertical motions (adiabatic cooling of ascending air).
In the tropics, weak rotation (small Coriolis parameter) means the geostrophic/thermal-wind balance that supports horizontal-advection balancing of heating in mid-latitudes largely breaks down. Instead, large...
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