get_glorys

Scripts to download GLORYS ocean model outputs from https://data.marine.copernicus.eu

Scripts to extract daily GLORYS model outputs from the following model products:

• Global Ocean Physics Reanalysis (1/1/1993 to 12/31/2020)
• Global Ocean Physics Analysis and Forecast (11/1/2020 to present + 2 days forecast)
• Global Ocean Biogeochemistry Analysis and Forecast (11/1/2020 to present + 6 days forecast)

by Greg Pelletier | [email protected]) | https://github.com/gjpelletier/get_glorys

These scripts are used to download outputs from the GLORYS model products available from the European Copernicus Marine Environment Monitoring Service:

https://data.marine.copernicus.eu/

Here is more info about the GLORYS ocean reanalysis project by Mercator Ocean International:

https://www.mercator-ocean.eu/en/ocean-science/glorys/

Two versions of each daily and monthly script are available as follows for use with either Python/iPython (.py) or Jupyter Notebooks in Google Colab (.ipynb):

• get_glorys_reanalysis_daily and get_glorys_reanalysis_monthly .py and .ipynb download from the Global Ocean Physics Reanalysis (1/1/1993 to 12/31/2020)
• get_glorys_forecast_physics_daily get_glorys_forecast_physics_monthly .py and .ipynb download from the Global Ocean Physics Analysis and Forecast (11/1/2020 to present + 2 days forecast)
• get_glorys_forecast_biogeochem_daily and get_glorys_forecast_biogeochem_monthly .py and .ipynb download from the Global Ocean Biogeochemistry Analysis and Forecast (11/1/2020 to present + 6 days forecast)

INSTRUCTIONS

Before using these scripts, it is first necessary to establish a free account with https://data.marine.copernicus.eu/ Your username will be assigned when you establish your account. Your password should not include special characters.

After you have established an account, the following are the instructions for using this script:

1. Edit the user input section below as needed, specify the following:
   • list of variables to be extracted
   • west, east, south, and north extent of the bounding box to be extracted
   • the name of the OUTPUT_DIRECTORY where the glorys data will be saved as output
   • the date_start and number_of_days of the period to be extracted
   • the min and max depths (dep_min and dep_max) (between 0 and 5728m)
2. Run this script in python, ipython, Jupyter, or Google Colab
3. Enter your username and password when prompted
4. During execution you sould see the progress of each daily file that is extracted during the period of interest from beginning to end. Each nc file name has the format glorys_yyyy_MM_dd.nc (daily) or glorys_yyyy_MM.nc (monthly) to indicate the date stamp

These script use the manual dictionary method that is described at the following Web page: https://help.marine.copernicus.eu/en/articles/5211063-how-to-use-the-motuclient-within-python-environment

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Notes for installing motuclient if you have not yet installed it: $ python -m pip install --upgrade motuclient Otherwise (if there is no previous installation of motuclient), type in the following: $ python -m pip install motuclient That command should install and display motuclient package v1.8.8 To display the version: $ python -m motuclient --version If that command does not return: "motuclient-python v1.8.X" ("X" >= "8"), then type in the following: $ python -m pip install motuclient==1.8.8