ExploreWTGSpace
Exploring the different implementations and parameters of the WTG Approximation
The Weak Temperature Gradient (WTG) approximation is a simplified framework for large-scale 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:
- Temperature Gradient Relaxation (TGR)
- Damped Gravity Wave (DGW)
The Temperature Gradient Relaxation framework is also known as the Weak Temperature Gradient framework and has been called as such in several different studies (e.g. Daleu et al. (2015), Romps (2012), Romps (2012)). I use Temperature Gradient Relaxation in order to distinguish it from the overall Weak Temperature Gradient approximation.