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NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6)

air temperature climate climate model climate projections CMIP6 cog earth observation environmental global model NASA Center for Climate Simulation (NCCS) near-surface relative humidity near-surface specific humidity netcdf precipitation

Description

The NEX-GDDP-CMIP6 dataset is comprised of global downscaled climate scenarios derived from the General Circulation Model (GCM) runs conducted under the Coupled Model Intercomparison Project Phase 6 (CMIP6) and across two of the four "Tier 1" greenhouse gas emissions scenarios known as Shared Socioeconomic Pathways (SSPs). The CMIP6 GCM runs were developed in support of the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR6). This dataset includes downscaled projections from ScenarioMIP model runs for which daily scenarios were produced and distributed through the Earth System Grid Federation. The purpose of this dataset is to provide a set of global, high resolution, bias-corrected climate change projections that can be used to evaluate climate change impacts on processes that are sensitive to finer-scale climate gradients and the effects of local topography on climate conditions.

Update Frequency

No future updates planned.

License

As noted in the metadata of each file, the NEX-GDDP-CMIP6 archive was initially made available through a CC-BY-SA 4.0, as required by the standard data license of the original CMIP6 data. In June 2022, the CMIP6 community updated their underlying licenses https://wcrp-cmip.github.io/CMIP6_CVs/docs/CMIP6_source_id_licenses.html, thereby allowing the NEX-GDDP-CMIP6 data license to also be updated. As of September 2022, all NEX-GDDP-CMIP6 outputs are made available under a blanket Creative Commons Zero license (CC0) license.

Documentation

https://doi.org/10.7917/OFSG3345

Managed By

See all datasets managed by NASA.

Contact

support@nccs.nasa.gov

How to Cite

NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6) was accessed on DATE from https://registry.opendata.aws/nex-gddp-cmip6. NEX-GDDP-CMIP6 data was accessed on [date] from https://registry.opendata.aws/nex-gddp-cmip6

Usage Examples

Tools & Applications
Publications

Resources on AWS

  • Description
    The NEX-GDDP-CMIP6 archive. Files are in NetCDF format with the CF-1.7 metadata conventions.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nex-gddp-cmip6
    AWS Region
    us-west-2
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nex-gddp-cmip6/
    Explore
    Browse Bucket
  • Description
    The NEX-GDDP-CMIP6-COG archive. Files are in Cloud-Optimized GeoTiff (COG) format. COG is a raster data format optimized for cloud-native processing and visualizations. Internal tiling and overviews allow map clients to progressively load subsections (or tiles) of the raster data at any zoom level very efficiently. Note: since the overviews are generated by downsampling the data from the zoom level above, care should be taken to use data from the native resolution for most analysis purposes. The NEX-GDDP-CMIP-COG archive was generated by re-processing a subset of the NEX-GDDP-CMIP6 archive from NetCDF into COGs. The subset contains 2 models: GFDL-CM4 and GISS-E2-1-G and 2 SSPs for each model: ssp245 and ssp585. The data is divided into 3 sub-products: daily, monthly, crossing.
    • daily: source data with daily timestamps.
    • monthly: monthly aggregatations across both models, currently displayed in the https://cmip6.surge.sh/ dashboard. The reduced temporal granularity makes this sub-product a good choice for interactive dashboards.
    • crossing: a single data product for each ssp, that indicates the number of years until the average daily temperature is expected to pass the 2 degree limit from the Paris Agreement, at each position on earth.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nex-gddp-cmip6-cog
    AWS Region
    us-west-2
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nex-gddp-cmip6-cog/
    Explore
    Browse Bucket

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