HAIC
Case description
The HAIC (High Altitude Ice Crystals) project case simulates icing conditions at high altitude. This case focuses on accurate ice crystal representation for aircraft icing predictions.
Configuration
Parameter |
Value |
|---|---|
Category |
Real cases |
Dynamics |
3D LES |
Horizontal grid spacing |
2000 m |
Vertical levels |
70 |
Integration length |
36000 s (10 hours) |
Time step |
10 s |
Turbulence |
TKEL (3D) |
Cloud scheme |
ICE3 or LIMA |
Deep convection |
NONE |
Shallow convection |
EDKF |
Radiation |
ECMW |
Declination
Configuration |
Cloud scheme |
Description |
|---|---|---|
HAIC/03_ICE3 |
ICE3 |
ICE3 microphysics |
HAIC/03_ICE3_SNOWT |
ICE3 |
ICE3 with snowt |
HAIC/03_LIMA |
LIMA |
LIMA microphysics |
HAIC/03_LIMA_222222 |
LIMA |
LIMA variant 222222 |
HAIC/03_LIMA_Ice1m |
LIMA |
LIMA with 1-moment ice |
HAIC/03_LIMA_ICE1M_SNOWT |
LIMA |
LIMA with snowt |
Steps
Step |
Script |
|---|---|
001_pgd |
run_pgd |
002_prep_real |
run_prep_real_case |
003_mesonh |
run_mesonh |
Specificities
Scientific specificities
High altitude icing study
LIMA ice microphysics
Ice crystal simulations
Aircraft icing predictions
Snowt (sedimentation) variants
Technical specificities
2km horizontal resolution
70 vertical levels
CEN4TH advection for winds
Budget computations
Validation
Icing observations
Ice crystal concentrations
Vertical profiles
Numerical ressources
8 nodes, 1024 cores (MPI parallel)
References
HAIC project observations (GRTP, Météo-France)