# Source: Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6)
# Type: cog
# Catalog: STACConnector
# Generated by: folia catalog import
# Generated at: 2026-02-08T00:48:55.483314+00:00
#
# Do not edit manually - will be overwritten on next import.

source:
  id: planetary-computer-nasa-nex-gddp-cmip6
  name: Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6)
  type: cog
  url: https://planetarycomputer.microsoft.com/api/stac/v1/collections/nasa-nex-gddp-cmip6
  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.


    The [NASA Center for Climate Simulation](https://www.nccs.nasa.gov/) maintains
    the [next-gddp-cmip6 product page](https://www.nccs.nasa.gov/services/data-collections/land-based-products/nex-gddp-cmip6)
    where you can find more information about these datasets. Users are encouraged
    to review the [technote](https://www.nccs.nasa.gov/sites/default/files/NEX-GDDP-CMIP6-Tech_Note.pdf),
    provided alongside the data set, where more detailed information, references and
    acknowledgements can be found.


    This collection contains many NetCDF files. There is one NetCDF file per `(model,
    scenario, variable, year)` tuple.


    - **model** is the name of a modeling group (e.g. "ACCESS-CM-2"). See the `cmip6:model`
    summary in the STAC collection for a full list of models.

    - **scenario** is one of "historical", "ssp245" or "ssp585".

    - **variable** is one of "hurs", "huss", "pr", "rlds", "rsds", "sfcWind", "tas",
    "tasmax", "tasmin".

    - **year** depends on the value of *scenario*. For "historical", the values range
    from 1950 to 2014 (inclusive). For "ssp245" and "ssp585", the years range from
    2015 to 2100 (inclusive).


    In addition to the NetCDF files, we provide some *experimental* **reference files**
    as collection-level dataset assets. These are JSON files implementing the [references
    specification](https://fsspec.github.io/kerchunk/spec.html).

    These files include the positions of data variables within the binary NetCDF files,
    which can speed up reading the metadata. See the example notebook for more.'
  provider: NASA NEX
  license: proprietary
  metadata:
    stac: true
    stac_api: true
    connector_id: planetary-computer
    tags:
    - CMIP6
    - NASA
    - Climate
    - Humidity
    - Precipitation
    - Temperature
    dataset:
      tier: 2
      thematic_group: Climate & Weather
      format: raster
      crs: EPSG:4326
      temporal:
        range: 1950-01-01/2100-12-31
        frequency: daily
        type: time_series
        default_range: latest
      quality:
        coverage: global
      layout:
        type: tiled
      stac_collection_id: nasa-nex-gddp-cmip6
      citation: Climate scenarios used were from the NEX-GDDP-CMIP6 dataset, prepared
        by the Climate Analytics Group and NASA Ames Research Center using the NASA
        Earth Exchange, and distributed by the NASA Center for Climate Simulation
        (NCCS).
      homepage: https://planetarycomputer.microsoft.com/api/stac/v1/collections/nasa-nex-gddp-cmip6