PIOMAS ARCTIC SEA ICE VOLUME 1979-2020
MONTHLY AVERAGES AS A PERCENTAGE OF 1979 VALUES
Graph: Jim Pettit (jimpettit@gmail.com)
Data: PIOMAS.vol.daily.1979.2020.Current.v2.1
JUNE 2020
 replay animation 
  • This graph shows monthly average PIOMAS Arctic sea ice volume (SIV) from January 1979 to the latest monthly update as a percentage of the 1979 value for that month.
  • Daily SIV values were averaged over sequential and non-overlapping one-month periods for smoothing purposes.
  • The vertical axis shows the percentage of 1979's SIV values.
  • Years are shown along one horizontal axis, with the earliest year (1979) at one end, and the current (or most recent) year at the other.
  • The other axis shows the months of the year, numbered 1 (January) at one end, through 12 (December) at the other.
  • Cooler colors—greens and blues—indicate higher monthly percentages, while warmer colors—yellows, oranges, and reds—indicate lower percentages.
  • Click and hold your mouse to move the graph in 3D space.
  • Use your mouse's scroll wheel to zoom into and out of the graph.
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