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Pangeo Tutorial for 2018 UCAR SEA Conference

This repository contains materials for the Pangeo Tutorial Atmospheric data analysis with Dask and Xarray that will be presented at the 2018 UCAR Software Engineering Assembly.

Front Matter

  • About Pangeo: Pangeo is a community effort for big data in the geosciences using Python. A key component of the Pangeo effort is the improved integration of Xarray and Dask to enamble analysis of very large datasets.
  • About Xarray: xarray is an open source project and Python package that aims to bring the labeled data power of pandas to the physical sciences, by providing N-dimensional variants of the core pandas data structures.
  • About Dask: Dask is a flexible parallel computing library for analytic computing.
  • About Jupyter: Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. The Jupyter Notebook is an open-source web application that allows you to create and share documents that contain live code, equations, visualizations and narrative text. Uses include: data cleaning and transformation, numerical simulation, statistical modeling, data visualization, machine learning, and much more.


This tutorial is designed to run on the Cheyenne High-Performance Computer, Pangeo's JupyterHub deployed on Google Compute Platform, or on a local computer (see Running Locally below). The larger sample datasets may only be available on GCP and/or Cheyenne.

For detailed setup instructions, see

Running Locally

git clone
cd pangeo-tutorial-sea-2018
conda env create -f environment.yml -n pangeo
source activate pangeo

Then start a JupyterLab server:

jupyter lab


At its core, Pangeo is a community effort built around open-source software. As such, the credit for the developments of the software described here belongs with the community that created it. Ryan Abernathey and Matt Rocklin provided resources and input specific to this tutorial.

Elements of this tutorial were taken from the Xarray, Dask, Cartopy, Holoviews, and Geoviews documentation. Some pieces of text in the Xarray portion of the tutorial were adapted from Hoyer and Hamman (2016).

Pangeo is supported by the National Science Foundation (NSF) and the EarthCube Program. NCAR is separately supported by the National Science Foundation (NSF).

Google provided compute credits on Google Compute Engine, which are used to back the Pangeo GCP deployment.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Pangeo Tutorial for 2018 NCAR SEA Conference



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