Previously you have carried out an OpenIFS control experiment of Tropical Cyclone Karl. In this tutorial you will learn:
- How to include output physical tendencies and fluxes in OpenIFS
- How to scale temperature tendencies in a rectangular domain
Latent Heat Fluxes
The scientific presentations during the morning programme of the workshop have given examples for how cyclogenesis in general and the life cycle of tropical storms in particular are sensitive to temperature dependencies from physical processes, such as convection.
In the perturbation experiments it is possible to modify temperature tendency contributions from the model physics (cloud, convection and radiation) in a specific region.
The temperature tendencies are produced through model dynamics and model physics:
with
\[ \frac{dT}{dt}(\mbox{physics}) = \frac{dT}{dt}(\mbox{convection}) + \frac{dT}{dt}(\mbox{clouds}) + \frac{dT}{dt}(\mbox{radiation}) \]The contributions from the individual physical tendencies can be output in OpenIFS as an additional diagnostic via the PEXTRA array.
These additional diagnostics have already been set up in this workshop's model experiment.
For reference and to learn how to enable this diagnostic output in OpenIFS please find the documentation here.
Regional scaling of tendencies
Our version of OpenIFS used in this workshop includes an additional source branch which permits