Abstract
A linear Eady model with a parameterization of heat influx from the lower boundary is studied analytically in order to obtain the characteristics of baroclinic normal modes modified by this non-adiabatic source. The results display a secondary maximum of growth rate at high wave numbers and a range of absolutely unstable waves, thus suggesting that the property observed among mid-latitude explosive cyclones of being near-stationary in the phase of maximum growth may be captured by this representation of the air-sea energy exchange.
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Fantini, M. Linear baroclinic instability in the presence of heat inflow from the lower boundary. Annales Geophysicae 13, 419–426 (1995). https://doi.org/10.1007/s00585-995-0419-y
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DOI: https://doi.org/10.1007/s00585-995-0419-y