CAM6 Data Assimilation Research Testbed (DART) Reanalysis: Cloud-Optimized Dataset

This is a cloud-hosted subset of the CAM6+DART (Community Atmosphere Model version 6 Data Assimilation Research Testbed) Reanalysis dataset. These data products are designed to facilitate a broad variety of research using the NCAR CESM 2.1 (National Center for Atmospheric Research's Community Earth System Model version 2.1), including model evaluation, ensemble hindcasting, data assimilation experiments, and sensitivity studies. They come from an 80 member ensemble reanalysis of the global troposphere and stratosphere using DART and CAM6. The data products represent states of the atmosphere consistent with observations from 2011 through 2019 at 1 degree horizontal resolution and weekly frequency. Each ensemble member is an equally likely description of the atmosphere, and is also consistent with dynamics and physics of CAM6. The dataset also contains corresponding land surface values at 6-hourly frequency. This dataset is a reformatting, with no change to numerical values, of data from the "CAM6 Data Assimilation Research Testbed (DART) Reanalysis", DOI:10.5065/JG1E-8525.

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Temporal Range

  • Begin:  2011-01-01
    End:  2019-12-31

Keywords

Resource Type dataset
Temporal Range Begin 2011-01-01
Temporal Range End 2019-12-31
Temporal Resolution 6-Hourly, Weekly
Bounding Box North Lat 90
Bounding Box South Lat -90
Bounding Box West Long -180
Bounding Box East Long 180
Spatial Representation grid
Spatial Resolution 1.0 degree
Related Links

Related Software and Documentation : Jupyter Notebook, other documentation, and software tools

https://doi.org/10.5065/JG1E-8525 : DOI for Original Dataset
Additional Information

If you have questions or want to request additional cloud-optimized variables from the original dataset, please reach out to us on our GitHub Discussions page or via email: cisl-aws-lens@ucar.edu.
Resource Format ZARR
Standardized Resource Format ZARR
Asset Size 5000000 MB
Legal Constraints

Data are freely available and reusable under the terms of the CC-BY-4.0 license. See Terms of Use.
Access Constraints If you use these data, we request that you provide attribution in any derived products.
Software Implementation Language N/A

Resource Support Name CESM-LENS Help
Resource Support Email cisl-aws-lens@ucar.edu
Resource Support Organization UCAR/NCAR - Computational & Information Systems Lab - Information Systems Division
Distributor N/A
Metadata Contact Name CESM-LENS Help
Metadata Contact Email cisl-aws-lens@ucar.edu
Metadata Contact Organization UCAR/NCAR - Computational & Information Systems Lab - Information Systems Division

Author Bonnlander, Brian
Raeder, Kevin
Publisher UCAR/NCAR - Computational and Information Systems Lab
Publication Date 2021
Digital Object Identifier (DOI) https://doi.org/10.26024/sprq-2d04
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress onGoing
Metadata Date 2021-12-12T15:14:42.209191
Metadata Record Identifier edu.ucar.cisl::dart-cam6-aws
Metadata Language eng
Suggested Citation Bonnlander, Brian, Raeder, Kevin. (2021). CAM6 Data Assimilation Research Testbed (DART) Reanalysis: Cloud-Optimized Dataset. UCAR/NCAR - Computational and Information Systems Lab . https://doi.org/10.26024/sprq-2d04. Accessed 24 October 2025.

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