FRISCO — Parts of the Arctic Ocean are acidifying so fast that some marine species may see their ability to build and maintain shells threatened as early as 2030, according to new research by NOAA, the University of Alaska, and Woods Hole Oceanographic Institution.
FRISCO — Proposed new Arctic drilling rules would require fossil fuel companies to have a spare drilling rig available in case they lose control of the primary well. The new rule is aimed at ensuring that companies operating in the Arctic are full prepared for the region’s extreme conditions.
Warm air temps due to open water inhibits ice growth in some areas
By Summit Voice
FRISCO — Arctic sea ice expanded quickly in October, with coverage doubling from the record low level of mid-September. But because the ice dwindled to an all-time low level this summer, even the record rebound in October couldn’t boost the ice extent back into the average range, according to the latest update from the National Snow and Ice Data Center.
SUMMIT COUNTY — Although Arctic sea ice cover has grown quickly the past few weeks, the extent remained below the previous record low for a full 40 days before recently climbing back to near that 2007 level on Oct. 6.
According to the National Snow and Ice Data Center, sea ice extent had grown to about 2 million square miles as of Oct. 15, which is about 1.35 million square miles below the 1979 to 2000 mean. Ice extent is growing by about 38,600 square miles per day, expanding southward at the ice edge, as well as northward from the Arctic continental coasts
Melting slowed down during second half of the month
By Summit Voice
SUMMIT COUNTY — Arctic sea continued to track at or near record low levels throughout July, as an early start to the melt season led to large areas of open water that speed up melting in adjacent ice areas.
As of July 23, satellite images showed areas of low sea ice concentration in the Beaufort and Chukchi seas, the Canadian Archipelago, the East Greenland Sea, and north of Siberia. In the Beaufort and Chukchi seas, according to the latest update from the National Snow and Ice Data Center.
During the first half of July, sea ice reached record-low levels numerous times, but melting slowed slightly during the second half of the month as storm systems brought cooler air to the region.
Large areas of open water (called polynyas) are being reported around areas of multiyear sea ice. Low ice concentrations mean a low surface albedo, allowing for more of the sun’s energy to be absorbed, melting even more sea ice. This makes the multiyear ice in the Beaufort and Chukchi seas vulnerable to melting out this summer, according to the NSIDC.
In parts of the Barents, Kara and Laptev seas, open water extends as far north as typically seen during September, at the end of the summer melt season. Sea ice extent is near normal in the Chukchi Sea and slightly above normal in the East Greenland Sea.