Community Earth System Model v2 Large Ensemble (CESM2 LENS)

Description

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 14th, 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).

Update Frequency

Rare. The LENS experiment is complete, but we may occasionally copy additional fields from NCAR to AWS, or fix problems discovered in the AWS copy.

License

https://www.ucar.edu/terms-of-use/data

Documentation

https://doi.org/10.26024/y48t-q717

Managed By

See all datasets managed by National Center for Atmospheric Research.

Contact

rdahelp@ucar.edu

How to Cite

Community Earth System Model v2 Large Ensemble (CESM2 LENS) was accessed on DATE from https://registry.opendata.aws/ncar-cesm2-lens.

Usage Examples

Tools & Applications

• Jupyter Notebook and other documentation and tools for CESM2-LE on AWS by NCAR Science at Scale team
  
• Rendered (static) version of Jupyter Notebook by Maxwell Grover, NCAR
  
• Urban Climate Explorer by Zhonghua Zheng
  

Publications

• Ubiquity of human-induced changes in climate variability by Rodgers et al. (2021), Earth Syst. Dynam., 12, 1–19, 2021