UCLALES-SALSA simulations based on ACLOUD campaign (Raatikainen et al., manuscript submitted to Atmospheric Chemistry and Physics, 2025). Tomi Raatikainen (tomi.raatikainen@fmi.fi) Finnish Meteorological Institute, Helsinki, Finland 22.5.2025 (original readme) Directory listing ================= Directory UCLALES-SALSA contains the source code of UCLALES-SALSA model. The code is also available from GitHub (https://github.com/UCLALES-SALSA/UCLALES-SALSA) under branch IceDevelOrg (commit ba5f769f03ed5a955cec9f8db2869ed76e8bd13f from May 22 16:24:00 2025 +0300). Output netCDF files (*.nc) have the following naming convention: ac__inp_rs..nc *Microphysics: l06 means SB (Seifert and Beheng, 2006) microphysics and l5 means SALSA microphysics. *INP concentration: 1, 01, 001 and 0001 means concentrations of 1, 0.1, 0.01 and 0.001 #/g, respectively. *Multiplier: Hallett-Mossop splinter production has been multiplied by factors 0 (no SIP), 1, 5 and 10. *Output type: each simulation has three different output files where ts means domain mean time series, ps means horizontally averaged profiles, and cs means column averages. Column averages from each processing unit have been merged with Fortran executable pples, originally compiled from UCLALES-SALSA/script/combine.f90. Note that column averages (cs) are stored for the ac_l5_inp01_rs10 and ac_l06_inp01_rs10 simulations only. In addition to the netCDF files, each simulation has the default runtime output stream stored in the *.out files. Directories test_* contain the simulations for sensitivity tests. Each variable in a netCDF file contains a brief description in addition to unit. Both SB and SALSA microphysics have their default NAMELISTs (NAMELIST_sb and NAMELIST_salsa), which have been modified for each run based on INP concentration and the multiplier. sound_in contains the initial liquid water potential temperatures, total water mixing ratios and wind speeds. Directory datafiles (or link to UCLALES-SALSA/bin/datafiles) contains the background atmospheric profiles for radiative transfer calculations. The other files are run scripts (runles_sb and runles_salsa). These are valid for CSC’s Puhti supercomputer. NetCDF data used in figures and tables ====================================== The table below lists those variables from NetCDF files that have been used in figures and tables. Note that unit conversions may have been applied. NetCDF (SALSA/SB) figures and tables a) Time series (*.ts.nc) nsnow/nice ICNC lwp_bar LWP swp_bar/iwp_bar IWP siph_ns/siph_ni SIP rate nucl_ns/nucl_ni Primary freezing rate Rice Ice crystal dimension Rcloud Cloud droplet diameter cond_rs/cond_ri Deposition rate b) Profiles (*.ps.nc) T_min Minimum temperature Rs_is/Ri_ii Ice crystal dimension Ns_is/Ni_ii ICNC Nc_ic CDNC rs/ri Ice water mixing ratio l Liquid water mixing ratio siph_ns/siph_ni SIP rate nucl_ns/nucl_ni Primary freezing rate c) Column outputs (*.cs.nc) swp/iwp Ice water path lwp Liquid water path siph_ns/siph_ni SIP rate Ns_is/Ni_ii ICNC cond_rs/cond_ri Deposition rate