CLM5.0 TRENDY Simulations used for the 2020 Global Carbon Budget

The data included consist of four simulations completed for Trends in land carbon cycle (TRENDY) simulations for the Global Carbon Project, which follow the land modeling protocol used for the 2020 Global Carbon Budget. The simulations include:

    •       S0, an extension of the spin up with constant forcings and land use
    •       S1, including transient CO2, N deposition, and population density
    •       S2, including transient CO2, climate, N deposition, population density, urban, and aerosols
    •       S3, including all transient forcings from the S2 simulation, as well as transient land use change, which includes shifting cultivation, irrigation, and agricultural N fertilizer

Simulations are run from 1700 through 2019 using CRU-JRAv2 forcing, CO2, land use change, and N deposition data provided by TRENDY. All files include monthly averaged data for the full time period. The ‘h0’ files are grid cell averages, whereas the ‘h1’ files are 1-dimensional files averaged by plant functional type. A script to grid the ‘h1’ files is available on the CTSM python GitHub website:

To Access Resource:

Questions? Email Resource Support Contact:

  • Danica Lombardozzi
    UCAR/NCAR - Climate and Global Dynamics Laboratory

Temporal Range

  • Begin:  1700-01-01
    End:  2019-12-31


Resource Type dataset
Temporal Range Begin 1700-01-01
Temporal Range End 2019-12-31
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 N/A
Spatial Resolution 0.9 degreesLatitude
1.25 degreesLongitude
Related Links

Definition of CLM history variables :

Additional Information N/A
Resource Format Hierarchical Data Format File (application/x-hdf)
Standardized Resource Format HDF
Asset Size N/A
Legal Constraints

Creative Commons Attribution 4.0 International License.

Access Constraints None
Software Implementation Language N/A

Resource Support Name Danica Lombardozzi
Resource Support Email
Resource Support Organization UCAR/NCAR - Climate and Global Dynamics Laboratory
Distributor N/A
Metadata Contact Name GDEX Curator
Metadata Contact Email
Metadata Contact Organization UCAR/NCAR - GDEX

Author Lombardozzi, Danica
Publisher UCAR/NCAR - GDEX
Publication Date 2020-11-04
Digital Object Identifier (DOI)
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2022-07-21T12:21:43-06:00
Metadata Record Identifier edu.ucar.gdex::ef88d752-02f2-45d0-877f-712cca19a2ed
Metadata Language eng; USA
Suggested Citation Lombardozzi, Danica. (2020). CLM5.0 TRENDY Simulations used for the 2020 Global Carbon Budget. UCAR/NCAR - GDEX. Accessed 18 June 2024.

Harvest Source