ACE_MATLAB_v0.1

Anelastic Convective Entity (ACE) Model - MATLAB Implementation version 0.1

This ACE_MATLAB_v0.1 code package is prepared for and released with the submission of Kuo & Neelin (2023) to the Journal of Atmospheric Sciences. Detailed model description can be found in the references list below.

The pre-computed nonlocal bases under ACE_MATLAB_v0.1/data/basis/ are provided as is.

Running the ACE model requires ARM site sounding data (ARMBEATM) available at http://dx.doi.org/10.5439/1333748.

A copy of a few samples—not part of this code package, provided only for user’s convenience—can be found here: soundings.zip

To run the package

(1) Place sounding data under ACE_MATLAB_v0.1/data/soundings/ and

(2) Execute the driver script ace_v01.m in MATLAB.

Experimenting with the ACE model

In the Set up parameters section of ace_v01.m there are a few parameters users can vary, including: arm, pidx, qc_ramp, conti, tspan, as well as variables for Initial mass flux, Initial thermal bubble, and External buoyancy forcing [most variables are documented with in-line comments in the driver script; initiation and forcing options documented in Kuo & Neelin (2023)].

Changing other variables is not recommended unless you are certain what you are doing.

References:

• Kuo, Y.-H., and J. D. Neelin, 2022: Conditions for convective deep inflow. Geophys. Res. Lett., 49, e2022GL100 552, doi:10.1029/2022GL100552.

• Kuo, Y.-H., and J. D. Neelin, 2023: Anelastic Convective Entities: formulation and properties. J. Atmos. Sci., submitted. Preprint available via ESS Open Archive.