2022 – WEEK 24: How is the arctic ice extent trending?

Introduction

This week you are invited to build a horizon chart of the arctic ice extent–the amount of ice on the arctic ice cap. Data comes from the National Snow and Ice Data Center.

In case you are not familiar with the horizon chart, a nice definition can be found here on Nathan Yao’s Flowing Data, and a great example from a Tableau Zen Master Joe Mako can be found here.

This chart is useful for tracking the trends in ice coverage over time. By comparing it over decade you are able to quickly see changes in ice coverage.

Requirements

- Dashboard Size: 1200px by 400 px
- 1 of Sheet
- Normalize the arctic ice (NH) to run between 0 and the maximum ice extent.
- Build a horizon chart that shows values 5 levels (0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, 0.8 to 1.0

- - #B84545
  - #E8C1C1
  - #FFFFFF
  - #C8D9F7
  - #598DE7

Partition the data by decade
Show only the 1980s through today
On the x-axis show data by day of decade
Match the formatting of the horizon chart

Dataset

Download this Extract that we’ve created from the National Snow and Ice Data Center.

Attribute

When you publish your solution on Tableau Public make sure to take the time and include a link to the original inspiration. Also include the hashtag #WOW2022 in your description to make it searchable!