NASA: The Land Temperature Bell Curve Heat Up (1950-2020)

Published On: June 14, 2021

When the bell curve becomes shorter, one can see more data trending toward the right, revealing hotter days.

NASA: This visualization shows how the distribution of land temperature anomalies has varied over time. As the planet has warmed, we see the peak of the distribution shifting to the right. The distribution of temperatures broadens as well. This broadening is most likely due to differential regional warming rather than increased temperature variability at any given location.

These distributions are calculated from the Goddard Institute of Space Studies GISTEMP surface temperature analysis. Distributions are determined for each year using a kernal density estimator, and we morph between those distributions in the animation.

NASA’s full surface temperature data set – and the complete methodology used to make the temperature calculation – are available at: https://data.giss.nasa.gov/gistemp

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About the Author: Chris Machens

Chris Machens
Chris covers the climate since 2011, and when not posting articles to the site he usually works on our next video production.
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