Combining these equations for the mass and energy balances of the Hadley cell, we can write the ratio of the ITCZ area to the area of the descent region in terms of the gross
moist stabilities in each region, the respective net energy inputs, and the mean advection and transient - eddy terms in the energy budget:
Not exact matches
Consequently, the vertical velocity
in the descent
region is a function not only of the net energy input to the atmosphere and the gross
moist stability, but also of the energy transport by transient eddies and mean advection.
Thus, we would expect a narrow ITCZ because the gross
moist stability is larger
in the descent
region (Hill et al. 2015), assuming all other terms
in the energy budgets of the ITCZ and descent
region are equal.
The width of the ITCZ (relative to the descent
region) is proportional to ratio of the gross
moist stabilities in the two
regions.