# Week 8 overview

## Learning Objectives:
1. ERA-5 Reanalysis One-Day Case Study with Xarray

  Retrieve, analyze, and visualize 24 hours of reanalysis data for a single date of your choice (Class example: "Cleveland Superbomb" of January 1978)

1. Git and GitHub: Version Control continued

## Learning and Participation Activities with Due Dates (Mon. Oct. 17, Noon EDT):
1. Xarray data analysis and visualization notebooks

   a. `cd` to your `/spare11/atm533/<NetID>` directory

   b. Clone Kevin's week8 folder: 
      `git clone /spare11/atm533/ktyle/week8`

   c. Open up a JupyterLab session on [Turing](https://turing.atmos.albany.edu:8000)

   d. Browse to your atm533/week8 directory

   e. Work through the **ERA5OneDayCaseStudy** notebook

   f. As directed at the end of this notebook, make a copy of it, and then re-run it for a date and region of your choice

   g. Create at least one new notebook that visualizes different variables/levels for the same date

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1. Team assignments:

  Each of you now have directories in your atm533 folder corresponding to the team to which you were assigned. These directories
are actually links to the actual directory; you, your team members, and the instructor all have write permissions to this folder.

  Please follow these steps to initialize this team directory as a git repository:

  a. cd to your team folder (this exists as a link within your **atm533** folder, as well as in `/spare11/atm533/teams`)

  b. Initialize this folder as a git repository: type `git init`

  c. (One of the team members does this): Copy `/spare11/atm533/ktyle/group/.gitignore` into your team folder

  d. (Another one of the team members does this): Create a README.md text file that includes the name of your team, and the team members

  e. (Select a team member to do this): Create two subfolders in your team folder: **testing** and **midterm**

  f. (Select a different team member to do this): Stage and commit the changes you have made so far in your team folder:
    *be sure you are cd'd into your team folder at this point!!*
    - git add .
    - git commit -m "Initial commit"

1. Team project:

  - If you haven't already, please confer among your team members and select a weather event of interest. The ERA-5 reanalysis extends from January 1 1950 through July 31 2022 on RDA.

  - A more detailed document will follow, but you will be expected to cooperatively create four notebooks, similar to the one demoed this week, each of which displays unique fields/levels from ERA-5. The output of these notebooks will be PNG files that can be displayed on our Science on a Sphere. Further instructions on how to make your maps "SoS-ready" will follow.

  - The due date of the project is **Wednesday, November 2, 2022**.
 
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1. Post any questions you have on the Week 8 Blackboard Class Community Forum.