ExploreWTGSpace

Authored By:

• Nathanael Wong ([email protected])
• Professor Kuang Zhiming

The Weak Temperature Gradient (WTG) approximation is a simplified framework for atmospheric dynamics in the deep tropics where the Coriolis force is weak.

This project aims to explore the different implementations of the WTG Approximation in small-domain cloud-resolving models and how these schemes interact with the vast parameter space with variables such as:

• Horizontal domain size and resolution
• Sea-surface temperature
• Interactive and non-interactive radiation, presence of a diurnal cycle

Over the past few decades, there are two popular frameworks that have emerged that implement the Weak Temperature Gradient approximation:

1. Temperature Gradient Relaxation (TGR)
2. Damped Gravity Wave (DGW)

This repository contains files that generate the prm files required to run our experiments in the System of Atmospheric Modelling v6.11.8 as modified by the Kuang Lab at Harvard University, along with notebooks that will aid in the analysis of our model results.

The resulting sounding (snd) files from RCE spinups found in exp/snd can also be used in future experiments.

Related Repositories:

• 2023GL104350

  This project is a subset of ExploreWTGSpace, containing the relevant experiments, notebooks and scripts required to generate the data for the paper submission to GRL with the ID 2023GL104350.

• SelfAggregation

  A complement to the ExploreWTGSpace project. Investigates the self-aggregation of convection in the System of Atmospheric Modelling for similar horizontal resolution allowing for direct comparison to WTG results.

Installation

This code base is using the Julia Language and DrWatson to make a reproducible scientific project. To (locally) reproduce this project, do the following:

0. Download this code base. Notice that raw data are typically not included in the git-history and may need to be downloaded independently.
1. Open a Julia console and do:

   julia> ] activate .
    Activating environment at `path/to/this/project`
   
   (ExploreWTGSpace) pkg> instantiate
   

This will install all necessary packages for you to be able to run the scripts and everything should work out of the box.

Other Acknowledgements

Project Repository Template generated using DrWatson.jl created by George Datseris.