Research data for "Sensitivities of Simulated Mixed-phase Arctic Multilayer Clouds to Primary and Secondary Ice Processes"

This archive contains research data presented in the manuscript "Sensitivities of Simulated Mixed-phase Arctic Multilayer Clouds to Primary and Secondary Ice Processes" with DOI: 10.5194/egusphere-2024-2988. In this study, the microphysical sensitivity of Arctic mixed-phase multilayer clouds are examined via two case studies observed during the MOSAiC campaign in September 2020. Sensitivity simulations on cloud droplet activation, primary ice, and secondary ice processes were performed. The ICON model is used to model these clouds and observational data from the MOSAiC campaign is used to constrain and evaluate the model.

The files are in NetCDF format and contain:
Cloud hydrometeor specific mass content (kg kg-1) is identified by:
cloud droplets - qc
cloud ice - qi
snow - qs
graupel - qg
drizzle and rain - qr
specific humidity - qv

Number concentrations are similarly defined with 'n' (qnc, qni, qns, qng, qnr, in units kg-1).

Process rates can be identified by the 'd' for diagnostics (with units kgkg-1 hour or kg-1 hour-1 for number concentrations) and are accumulated over time:
Cloud droplet activation - d_qc_nuc
... mehr
Heterogeneous ice nucleation - d_qi_het
Rain freezing - d_qr_rf
Riming - all included d_qx_riming (many variants occur with d_*_rime_*, where the first start signifies which (qc or qr) are riming and onto what (second star, qi,qs, or qg)
Aggregation - d_qs_ii, d_qs_is, d_qg_sg, d_qg_ig with the qx defining which is the resulting particle and the ab defining the colliding particles
SIP: all included dqi_sec
Rime splintering - d_qi_hm
Droplet shattering - dqi_ds_i, dqi_ds_g - splinters of ice and graupel
Breakup upon ice-ice collision - dqi_br (and qi_br_ab for all combinations of collisions)

Other variables of interest:
w - vertical velocity (ms-1)
u -
pres - pressure (Pa)
temp - temperature (K)

The structure for the variables is in general (time, height_2, ncells) where height_2 indicates the levels and height the half levels (for w). Ncells is the 1D array for the coordinates. The radians of the latitude and longitude can be accessed through ncells.clon and ncells.clat respectively.