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 x 1.25 horizontal resolution simulation with 32 vertical levels. Temperatures, and winds are nudged to MERRA2 reanalysis fields with by nudging with 12h relaxation (10 percent) to MERRA2 reanalysis. Data is saved as instantaneous fields every 6 hours. See a list of saved species. Chemistry is the MOZART-T1 mechanism, described in Emmons et al. (2019). You can find a description of all simulated species online. We use the MAM4-VBS scheme to model aerosols. Files are collected as daily information (4 time-slices per file). Anthropogenic emissions are from CAMS V5.1. Biogenic emissions are from online MEGAN2.1, fire emissions are from QFED CO2 x FINN emission ratios. Online ocean DMS emissions are used.

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Temporal Range

  • Begin:  2001-01-01
    End:  2022-12-31

Keywords

Resource Type dataset
Temporal Range Begin 2001-01-01
Temporal Range End 2022-12-31
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format NetCDF
Standardized Resource Format NetCDF
Asset Size 0 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.
Publisher NSF National Center for Atmospheric Research
Publication Date 2025-05-06
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d651041
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:21:41Z
Metadata Record Identifier edu.ucar.gdex::d651041
Metadata Language eng; USA
Suggested Citation Tilmes, S.. (2025). CESM2.2 CAM-chem as Boundary Conditions. NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d651041. Accessed 13 October 2025.

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