Use Case for Global Aerosol Chemistry Climate (R02B05)#

Data Download:

Click here (starts download) or use

wget https://swift.dkrz.de/v1/dkrz_4d992e1b-f237-4258-a2bc-138ca6a1cf59/icon-model-use-cases/GLOBAL_ACC.zip
Input files:
Grid files

GLOBAL_ACC/grid/iconR2B05-DOM01.nc: R02B05 grid (80 km effective mesh size), global

GLOBAL_ACC/grid/iconR2B05-DOM01-grfinfo.nc: grid information file for R02B05 grid

External parameter files

GLOBAL_ACC/extpar/icon_extpar_0030_R02B05_G_tiles.nc: External parameter file

Initial conditions

GLOBAL_ACC/icbc/icon_remap_R02B05_2019122900_geop.nc: Initial data for December 29, 2019, 00 UTC

GLOBAL_ACC/icbc/camchem_0621.nc: CAMChem data for Chemistry initialization

Dictionaries GLOBAL_ACC/mapping/: Files to map the ICON internal variable names to I/O names used for ECCODES (GRIB2 shortnames)

ART emission files

GLOBAL_ACC/ART_BCF_iconR2B05-grid-2019-12-29_0030.nc: gridded emission information for biomass burning emissions

GLOBAL_ACC/ART_STY_iconR2B05-grid_0030.nc: gridded soil information for mineral dust emission

GLOBAL_ACC/PFT/ART_PFT_iconR2B05-grid_0030.nc: gridded plant functional type data for online biogenic emissions

OEM emission files

GLOBAL_ACC/oem/dayofweek.nc: gridded time factoring for day of the week

GLOBAL_ACC/oem/hourofday.nc: gridded time factoring for hour of the day

GLOBAL_ACC/oem/monthofyear.nc: gridded time factoring for month of the year

GLOBAL_ACC/oem/oem_gridded_emissions.nc: gridded base emission information for the Online Emission Module

GLOBAL_ACC/oem/vertical_profiles.nc: gridded vertical profiling information

Running the test:

Base script GLOBAL_ACC/exp.testsuite.global_acc_base: Base for the runscript (contains namelists and skeleton to apply local information) - add pathing information and job-command to create actual runscript

Description#

This use case runs a global ICON-ART (NWP) application with a resolution of about 80 km (R2B05). It employs a simplified aerosol (dust, seasalt, soot and secondary inorganic aerosols) and chemistry setup, including interactive radiation processes. It is efficient for long simulations and Earth-system applications.

Model setup and configuration#

  • Start date: 2019-12-29 00 UTC

  • Forecast length: 1 day

  • Time step: 450 seconds

  • Vertical levels: 90

  • Radiation: Active (inwp_radiation=4, irad_aero=9)

  • Aerosols: Active (lart_aerosol=.TRUE.)

  • Chemistry: Active (lart_chem=.TRUE.)

  • Dynamics: Enabled (ldynamics=.TRUE.)

  • Transport: Enabled (ltransport=.TRUE.)

  • Model type: ATMO