Week 5 overview

Announcements¶

• HW1: Due End of Day, Tuesday September 9/30¶

• Class Website as a virtual textbook¶

Treat the fully-rendered notebooks as the “notebooks of record” for the class!

They will continually be updated for fixes and clarity.

In some cases, e.g. the NLDN notebook, you can interact with the content in your web browser.

• Great Resource for Python and Pandas: Python for Data Analysis (W. Mckinney)¶

Kevin has a couple of physical copies available to borrow!

Learning Objectives:¶

1. Git and GitHub continued
2. Gridded datasets

• Intro to Xarray

Learning and Participation Activities with Due Dates (Tuesday, Sep. 30, end of day):¶

In class, Tuesday 9/23¶

1. Git and GitHub continued

   a. Access the class Jupyterhub server on Turing

   b. In the Launcher, open up a Terminal session

   c. cd to your atm533 folder: cd /spare11/atm533/<YourNetID>

   d. Type git clone git@github.com:DAES433533/week5

   f. You should then have a week5 folder visible in your atm533 directory, which contains one Jupyter notebook and a README.

   g. Create and check out a development branch for your Week 5 clone:

   • git checkout -b dev

   h. Follow along with the Git and GitHub activites demonstrated in class.

2. Intro to Xarray

   Follow along with the Intro to Xarray notebook.

On your own:¶

1. Attempt the suggested things to try at the end of the Intro to Xarray notebook.

2. Stage and commit your revisions on your dev branch.

3. When notified, pull updates to the origin repository to your main branch:

• Very important: While still on your dev branch, run a git status. If necessary, stage and commit your revisions on your dev branch.

• Check out the main branch: git checkout main

• Pull from the upstream repo: git pull origin main

• Verify that the contents of your directory have changed (type ls -l in your terminal in your week5 folder)

• Check out the dev branch again:

  git checkout dev

• Check out any files that exist in your main branch but not in your dev branch: type:

  git checkout main -- .

• Run git status again. You should see that there is the 02_Xarray_Computation_Masking.ipynb ready to be staged.

• Type git add 02_Xarray_Computation_Masking.ipynb.

• Type git commit -m "Added 2nd Xarray notebook".

• At this point (confirm with git status!), you should now have the 2nd Xarray notebook in your dev branch.

• Continue with exploring and then copying/further developing the notebooks you are working on, while also trying the new Xarray notebook.

• As you play around, continue to periodically run git add and git commit.

• Moral of the story: Always work on your dev branch! Next week we will learn how to merge your dev branch into your main branch.