CESM2 SMYLE

SMYLE (Seasonal-to-MultiYear Large Ensemble) is an initialized prediction system using CESM2. It consists of fully coupled initialized hindcast simulations using CESM2 component models at nominal 1 degree horizontal resolution. Hindcasts are initialized from historical reconstructions (SMYLE-FOSI for ocean and sea-ice; SMYLE-landonly for land; and JRA55 reanalysis for atmosphere) and then integrated forward 24-months. Initialization occurs quarterly (1st of each month of February, May, August, and November) for each year between 1970-2019. The ensemble size is 20 for each start date, with ensemble spread introduced through a random field perturbation applied to the atmospheric initial conditions. The SMYLE data release also includes the historical reconstructions used to initialize the ocean, sea ice, ocean biogeochemistry, and land components (SMYLE-FOSI and SMYLE-landonly).

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Temporal Range

  • Begin:  1970
    End:  2021

Keywords

Resource Type dataset
Temporal Range Begin 1970
Temporal Range End 2021
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

Related Resource #1 : SMYLE simulation additional information
Additional Information N/A
Resource Format NetCDF
Standardized Resource Format NetCDF
Asset Size 579954600.108 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 Yeager, Stephen
Richter, Jadwiga
Pegion, Kathleen
Publisher NSF National Center for Atmospheric Research
Publication Date 2022-01-01
Digital Object Identifier (DOI) https://doi.org/10.26024/pwma-re41
Alternate Identifier d651065
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:41:35Z
Metadata Record Identifier edu.ucar.gdex::d651065
Metadata Language eng; USA
Suggested Citation Yeager, Stephen, Richter, Jadwiga, Pegion, Kathleen. (2022). CESM2 SMYLE. NSF National Center for Atmospheric Research. https://doi.org/10.26024/pwma-re41. Accessed 11 October 2025.

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