Title: Namelists associated with "A Linear Relationship Between Vertical 
Velocity and Condensation Processes in Deep Convection"

Abstract: Vertical velocities and microphysical processes within deep convection
are intricately linked, having wide-ranging impacts on water and mass vertical 
transport, severe weather, extreme precipitation, and the global circulation. 
The goal of this research is to investigate the functional form of the 
relationship between vertical velocity, w, and microphysical processes that 
convert water vapor into condensed water, M, in deep convection. We examine an 
ensemble of high-resolution simulations spanning a range of tropical and 
midlatitude environments, a variety of convective organizational modes, and 
different model platforms and microphysics schemes. The results demonstrate that 
the relationship between w and M is robustly linear, with the slope of the 
linear fit being primarily a function of temperature and secondarily a function 
of supersaturation. The R2 of the linear fit is generally above 0.6 except near 
the freezing and homogeneous freezing levels. The linear fit is examined both as
a function of local in-cloud temperature and environmental temperature. The 
results for in-cloud temperature are more consistent across the simulation 
suite, although environmental temperatures are more useful when considering 
potential observational applications. The linear relationship between w and M is 
substituted into the condensate tendency equation and rearranged to form a 
diagnostic equation for w. The performance of the diagnostic equation is tested 
in several simulations, and it is found to diagnose w to within 1 m s-1 
throughout the upper half of the cloud depths. Potential applications of the 
linear relationship between w and M and the diagnostic w equation are discussed.

Contact: Leah Grant, leah.grant@colostate.edu

Recommended citation: Grant, L. D., S. C. van den Heever, Z. S. Haddad, J. 
Bukowski, P. J. Marinescu, R. L. Storer, D. J. Posselt, and G. L. Stephens, 
2021: Namelists associated with "A Linear Relationship Between Vertical Velocity 
and Condensation Processes in Deep Convection." Colorado State University. 
Libraries. http://dx.doi.org/10.25675/10217/233963

Associated article: Grant, L. D., S. C. van den Heever, Z. S. Haddad, J. Bukowski, 
P. J. Marinescu, R. L. Storer, D. J. Posselt, and G. L. Stephens, 2022: A Linear 
Relationship between Vertical Velocity and Condensation Processes in Deep Convection. 
J. Atmos. Sci., 79, 449–466, https://doi.org/10.1175/JAS-D-21-0035.1.

Description: This dataset contains a collection of namelists describing the 
setups of the various model simulations analyzed for the associated publication, 
"A Linear Relationship Between Vertical Velocity and Condensation Processes in 
Deep Convection."

File format: Text files

File information: The RAMSIN files (namelist files for RAMS simulations) are 
named according to Table 1 of Grant et al. (A Linear Relationship Between 
Vertical Velocity and Condensation Processes in Deep Convection). The folder 
"WRF_namelists" contains WRF namelist and other initialization files for the two 
WRF simulations, Isolated Tropical WRF and Supercell WRF. It also contains a 
folder called "WRF Source Code Edits", which includes WRF source code files that 
were modified to run these two WRF simulations. The source code modifications 
were needed in order to output microphysical process rates. Code modifications 
are noted by "JB" in the comments.
