Fig. 3
From: The world’s largest High Arctic lake responds rapidly to climate warming

Temporal trends in surface temperature, ice phenology and ice cover at Lake Hazen. a Monthly mean (±SE) lake surface temperatures (°C) measured at 30 sites on Lake Hazen. b Onset dates (day of year) of melt and freeze-up. c Mean daily ice-free area (% of total lake area) on Lake Hazen between May 5 and September 5. For illustrative purposes, linear trend lines are shown, though none are significant (p > 0.05)