Community Earth System Model v2 Large Ensemble (CESM2 LENS) Zarr Subset

The US National Center for Atmospheric Research partnered with the IBS Center for Climate Physics in South Korea to generate the CESM2 Large Ensemble which consists of 100 ensemble members at 1 degree spatial resolution covering the period 1850-2100 under CMIP6 historical and SSP370 future radiative forcing scenarios. Data sets from this ensemble were made downloadable via the Climate Data Gateway on June 14, 2021. NCAR has copied a subset (currently ~500 TB) of CESM2 LENS data to Amazon S3 as part of the AWS Public Datasets Program. To optimize for large-scale analytics we have represented the data as ~275 Zarr stores format accessible through the Python Xarray library. Each Zarr store contains a single physical variable for a given model run type and temporal frequency (monthly, daily).

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Temporal Range

  • Begin:  1850-01-01
    End:  2014-12-31

Keywords

Resource Type dataset
Temporal Range Begin 1850-01-01
Temporal Range End 2014-12-31
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 Zarr
Standardized Resource Format ZARR
Asset Size 340695038.153 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 Danabasoglu, Gokhan
Deser, Clara
Rodgers Axel Timmermann, Keith
Publisher NSF National Center for Atmospheric Research
Publication Date 2024-11-11
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d010092
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:47:39Z
Metadata Record Identifier edu.ucar.gdex::d010092
Metadata Language eng; USA
Suggested Citation Danabasoglu, Gokhan, Deser, Clara, Rodgers Axel Timmermann, Keith. (2024). Community Earth System Model v2 Large Ensemble (CESM2 LENS) Zarr Subset. NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d010092. Accessed 10 October 2025.

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