# Week 6 overview

## Learning Objectives:
1. Gridded Data with Xarray

   - Learn the three main components of an Xarray data object: *data variables*, *coordinate variables*, *named dimensions*

   - Visualize gridded datasets

1. Git and GitHub: Version Control

## Learning and Participation Activities with Due Dates (Monday, Mon. Oct. 3, Noon EDT):
1. Xarray data analysis and visualization notebooks

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

   b. Clone Kevin's week6 folder: 
      `git clone /spare11/atm533/ktyle/week6`

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

   d. Browse to your atm533/week6 directory

   e. Work through notebooks 1-3

   <br>

1. Set up a user account at [NCAR's Research Data Archive](https://rda.ucar.edu/index.html?hash=data_user&action=register)

   <br>

1. Store your RDA account credentials as follows:

    a. cd to your **home** directory: `cd`

    b. Create a text file and name it `.rdarc`

    c. This text file will contain one line, consisting of the user ID and the password you chose, separated by a **blank space**. E.g.: `ddane@albany.edu MyPa$$word`

    d. Change the permissions on this file so only you can read/write to/from it: `chmod 600 .rdarc`

1. Work through notebook 4. *This notebook requires that you have stored your RDA account credentials in a file in your home directory.*

   <br>

1. Version control in Git:

   - We will follow the workflows in https://foundations.projectpythia.org/foundations/github/github-cloning-forking.html and https://foundations.projectpythia.org/foundations/github/basic-git.html, but will use our individual repositories on the class GitHub organization.

   <br>

1. Team assignments:
 
  - I will be assigning you into teams of 2 or 3 for the collaborative coding assignments / projects to follow. I will notify you via Blackboard of your provisional team assignment.

<br>
<hr>

1. Post any questions you have on the Week 6 Blackboard Class Community Forum.