Antarctic Sea Ice Enters New Regime, According to US National Snow and Ice Data Centre
The director of the US National Snow and Ice Data Centre has reported that Antarctic sea ice is displaying unusual behavior and may have entered a new regime. This comes after a low maximum in September 2023, leading to near-record-low extent over the past six months.
The most recent minimum extent of Antarctic sea ice tied with 2022 for the second-lowest in the 46-year satellite record. The director stated that more warm ocean water reaching the surface is melting ice and preventing its formation in Antarctica.
Meanwhile, Arctic sea ice peaked at 15.01 million square kilometers on March 14, with this year’s winter peak being 640,000 km2 smaller than the 1981-2010 average maximum extent. Despite a high winter peak, Arctic sea ice remains much thinner compared to previous decades.
Antarctic sea ice reached its summer minimum extent on February 20, also tying with 2022 for the second-lowest on record. The director noted that the Antarctic has been experiencing unusual behavior, with warmer water reaching the surface and affecting sea ice.
Overall, both Arctic and Antarctic sea ice are undergoing changes that indicate potential shifts in the climate regime. Scientists continue to monitor these changes closely to better understand and address the potential impacts on the environment and global climate. Stay tuned to Heartland Magazine for further updates on this developing situation.
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