CESM2.2 CAM-chem as Boundary Conditions

We have saved CAM-chem simulation output that is intended to be used as boundary conditions for regional modeling. We used CAM-chem at 0.9 degree by 1.25 degree horizontal resolution simulation with 32 vertical levels. Temperatures, and winds are adjusted to MERRA2 reanalysis fields with a 12 hour relaxation (10%). Data is saved as instantaneous fields every 6 hours into daily files. Chemistry is the MOZART-T1 mechanism. Descriptions of all simulated species are available online. We use the MAM4-VBS scheme to model aerosols. Anthropogenic emissions are from CAMS V5.1. Biogenic emissions are from online MEGAN2.1. The fire emissions are from QFED CO2 fields combined with emission factors collated for the FINN inventory to create all the emissions necessary for the CAM-chem simulation. Online ocean DMS emissions are used.

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Temporal Range

  • Begin:  2001-01-01T0000+00
    End:  2023-01-01T0000+00

Keywords

Resource Type dataset
Temporal Range Begin 2001-01-01T0000+00
Temporal Range End 2023-01-01T0000+00
Temporal Resolution N/A
Bounding Box North Lat 90.0
Bounding Box South Lat -90.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 1.25 degree
Related Links N/A
Additional Information N/A
Resource Format NetCDF
NetCDF4
Standardized Resource Format NetCDF
Asset Size 16401378.6 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Tilmes, S.
Emmons, L. K.
Buchholz, R. R.
The CESM2 Development Team
Publisher NSF National Center for Atmospheric Research
Publication Date 2022-10-07
Digital Object Identifier (DOI) https://doi.org/10.5065/XS0R-QE86
Alternate Identifier d313008
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-09T01:22:19Z
Metadata Record Identifier edu.ucar.gdex::d313008
Metadata Language eng; USA
Suggested Citation Tilmes, S., Emmons, L. K., Buchholz, R. R., The CESM2 Development Team. (2022). CESM2.2 CAM-chem as Boundary Conditions. NSF National Center for Atmospheric Research. https://doi.org/10.5065/XS0R-QE86. Accessed 11 October 2025.

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