Area chart
Level 2 Category
Definition
Line chart with the area between the line and x-axis filled in, emphasizing magnitude of change over time and highlighting total values across trends
Example Image
World wind generation yearly. PNG file, available at https://commons.wikimedia.org/wiki/File:World_wind_generation_yearly.png. Licensed under CC0 1.0.
Writing Alternative Text
Describe the variables being compared, the overall trend or pattern, and any notable peaks, changes, or relationships.
Example Alt Text
"An area chart of wind power output by continent from 2000 onwards. Total output rises from close to zero to over 2,000 terawatt-hours, with the steepest increase after 2010. Asia and Europe account for the largest portions of the increase, followed by North America. South America, Oceania, and Africa contribute substantially smaller amounts."