FANNY
Case description
The FANNY case is a real supercell simulation during the FANNY IOP (Intensive Observation Period). This case tests deep convective cloud and mesocyclone structures with different microphysics configurations.
Configuration
Parameter |
Value |
|---|---|
Category |
Real cases |
Dynamics |
3D LES |
Horizontal grid spacing |
2500 m |
Vertical levels |
40 |
Integration length |
10800 s (3 hours) |
Time step |
5 s |
Turbulence |
TKEL (3D) |
Cloud scheme |
ICE3 or LIMA |
Deep convection |
NONE |
Shallow convection |
EDKF |
Radiation |
ECMW |
Declination
Configuration |
Cloud scheme |
Description |
|---|---|---|
FANNY/ICE3 |
ICE3 |
ICE3 with LRED=F |
FANNY/ICE3_LRED |
ICE3 |
ICE3 with LRED=T |
FANNY/ICE3_LRED_MOENG |
ICE3 |
ICE3 with LRED=T and turbulence Moeng terms |
FANNY/LIMA |
LIMA |
default values of LIMA |
FANNY/LIMA_CAMS |
LIMA |
LIMA with CAMS aerosols |
FANNY/LIMA_v222222 |
LIMA |
LIMA variant 2 moment prognostic equations for all hydrometeors |
FANNY/REPRO_DEBUG |
LIMA |
Reproducibility debug |
Steps
Step |
Script |
|---|---|
001_pgd |
run_pgd |
002_prep_real |
run_prep_real_case |
003_mesonh |
run_mesonh |
Specificities
Scientific specificities
Real case supercell simulation
LIMA microphysics with aerosol activation
Mesocyclone development
ICE3 and LIMA comparisons
CAMS aerosol scheme variants
Technical specificities
2.5km horizontal resolution
40 vertical levels
WENO advection scheme (order 5)
Real case initialization from observations
Validation
Radar reflectivity comparison
Storm structure evolution
Mesocyclone track
Numerical ressources
20 nodes, 320 cores (MPI parallel)
References
FANNY campaign observations (1997)