Python tutorials
Exercises using Python to download and process satellite ocean data.

Viewing the exercises

The exercises are a series of Jupyter Notebooks that are hosted on a GitHub repository. You can view a single exercise to see if it is of interest by clicking below on the linked name of each exercise. A non-executable version of the exercise will open in a new browser window.
If you want an executable version of a Notebook, go to the GitHub repository and download a zip file with all of the exercises included:
  • On the green "Code" dropdown, select "Download Zip"
  • Unzip to a location on your computer
  • In a terminal, navigate to the unzipped folder and launch Jupyter Notebook by entering:
    1
    jupyter notebook
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Software Requirement

Python 3 is required to participate in the Python tutorials and examples presented in the course.
Anaconda installations have made it easier to install the required modules. Miniconda is a light weight version of Anaconda that takes up less disk space. It comes with a minimal set of modules, so you add just what you need. The following modules are required: pyproj, netCDF4, requests, matplotlib, pandas, cartopy, xarray, statsmodels, shapely, and cmocean. You can run this script in your python environment to check if the modules are install.
Jupyter Notebooks in addition to Python 3 will be used for Python exercises.

Exercises

  1. 1.
    Emulating the R rerddapXtracto functions This exercise shows you how to duplicate the rerddapXtracto functions demonstrated in R tutorial section of the course.
    • Extract environmental data from an ERDDAP server along an x,y and time trajectory, e.g. an animal or cruise track.
    • Extract environmental data from an ERDDAP server in an rectangular bounding box (polygon) over time.
    • Extract environmental data from an ERDDAP server in an irregular bounding box (polygon) over time, e.g. a marine protected area.
  2. 2.
    Creating a virtual buoy data Create a virtual buoy from satellite data for locations where in-situ buoy data may not be available or has been discontinued.
  3. 3.
    Comparing time series from different sensors Several ocean color sensors have been launched since 1997 to provide continuous global ocean color data. Chlorophyll-a values can vary among the sensors during periods where measurements overlap. This exercise examines that variability.
Last modified 6mo ago