Sea Ice Extent Calculator
Arctic sea ice area trends from satellite data.
Inputs
Results
Projected Sept. ice (M km²)
2.9
Decline from baseline (%)58%
Ice lost from current (M km²)1.3
Ice-free summer? (0/1)0
Warming for ice-free (°C global)2.95
Albedo feedback (W/m²)0.65
Projected volume (1000 km³)0
Total Arctic warming (°C)5
Current Arctic Warming$3
Current Volume Km3$0.01
How to Use This Calculator
- Enter current September Arctic sea ice extent (million km²) and current global temperature anomaly (°C).
- Set projected additional warming (°C), Arctic amplification factor, and ice sensitivity (M km²/°C).
- Review Projected September Ice Extent, Decline from Baseline (%), and Ice-Free Summer indicator.
- Values below 1 million km² are classified as effectively ice-free Arctic summers.
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