geoglows

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The geoglows Python package enables access to data, API’s, and code developed for the GEOGLOWS Hydrology Model. Read more about GEOGLOWS at https://geoglows.org

For demos, tutorials, and other training materials for GEOGLOWS and the geoglows Python packge, please visit https://data.geoglows.org.

Supplemental Data

Some functions in this package will help you browse the metadata for the model to identify river locations, names, and other information. It is available online at http://geoglows-v2.s3-website-us-west-2.amazonaws.com/tables/package-metadata-table.parquet. If you do not already have a copy downloaded, the code will fetch it for you and cache a copy in the same directory that the source code of the package is installed in.

It is more efficient to save this file yourself and reuse it so that you do not have to download it every time your python environment is recreated, the package version is updated, and so on. You may do this in several ways.

  1. You can set the environment variable PYGEOGLOWS_METADATA_TABLE_PATH before importing the package.

  2. Call the geoglows.set_metadata_table_path function to set the path the path at any time after importing.

  3. Pass the path to the table to functions that use it.

About the GEOGLOWS Hydrology Model

The GEOGLOWS Hydrology Model is run each day at midnight (UTC +00). The model is based on the ECMWF ENS and HRES ensemble of meteorology and land surface model forecasts. There are 51 members of the ensemble that drives the model each day. The ERA5 reanalysis dataset is also used to produce a retrospective simulation on each river. The model provides river in units m^3/s over the preceeding interval (1, 3, or 24 hours depending on the dataset). Read more here.

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