BLAZE
Case description
The BLAZE case tests the fire spread parameterization with coupled atmosphere-fire interactions. The case exists in two configurations: local (flat terrain) and HPC (with orography).
Configuration
Parameter |
Local (BLAZE) |
HPC (BLAZE_OROG) |
|---|---|---|
Category |
Idealized cases |
HPC cases |
Dynamics |
Non-hydrostatic |
Non-hydrostatic |
Horizontal grid spacing |
25 m |
25 m |
Domain size |
100x50 |
100x50 |
Vertical levels |
30 |
30 |
Integration length |
600 s |
600 s |
Time step |
1 s |
1 s |
Turbulence |
NONE |
NONE |
Cloud scheme |
NONE |
NONE |
Fire spread |
enabled |
enabled |
Declination
Configuration |
Surface |
Description |
|---|---|---|
BLAZE/01_flat_2WC |
ISBA |
Flat terrain with 2-way coupling |
BLAZE/02_flat_A2F |
ISBA |
Flat terrain with atmosphere-to-fire coupling |
BLAZE/03_flat_F2A |
ISBA |
Flat terrain with fire-to-atmosphere coupling |
BLAZE_OROG |
ISBA |
Orographic terrain with coupling |
Steps
Step |
Script |
|---|---|
001_prep_ideal_case |
run_prep / run_prep_ideal_case |
002_mesonh |
run_test / run_mesonh |
Specificities
Scientific specificities
Fire spread model with vegetation burning
Atmosphere-fire coupling (different coupling schemes)
ISBA land surface model
Fire front propagation validation
Technical specificities
25m horizontal resolution
30 vertical levels with stretching
Open boundary conditions
Multiple fire coupling variants (2WC, A2F, F2A)
Fuel map input for fire propagation
Validation
Fire front propagation
Heat release rates
Velocity fields
Numerical ressources
Local: Single CPU (1 node, 1 core) HPC: 1 node, 128 cores (MPI parallel)
References
Fire modeling studies with Meso-NH