Advective heating

Deep heating

In addition to the energy transport terms, some heat production/loss may occur within a given layer of the atmosphere; e.g. from advective heat transport [49] or ohmic dissipation [50]. AGNI includes a parameterisation of this 'deep' heating through a Gaussian energy deposition profile in log-pressure space, centred at a user-specified centre and width:

\[\frac{dF}{dP} = \frac{F_{\text{total}}}{\sqrt{2\pi} \sigma P} \exp\left(-\frac{(\ln P - \ln P_0)^2}{2\sigma^2}\right)\]

where $F_{\text{total}}$ is the total integrated heating rate, $P_0$ is the centre pressure of the Gaussian profile, $\sigma$ is the width in log-pressure space, and $P$ is pressure. This is a representation of energy sources/sinks from otherwise unmodelled physics []. The 'deep heating' functionality was first introduced to AGNI by Cheng An Hsieh.

Bibliography for this page