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Antarctic Regional Synopsis

Regional charts and associated synopsis write-up capture ice and environmental conditions throughout the Antarctic which are based on the U.S. National Ice Center’s weekly analysis. Charts and synopses are updated weekly on Fridays.

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Amery Region

New ice is starting to expand further away from the coast. Pack ice did show some areas of blowout with new ice forming behind it. New and young ice has filled in the coastal ice pack.

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Amundsen Sea

Ice edge pushed out this week with some new ice growth starting to form. Polynyas are also filling in with new and young ice as temperatures continue to drop.

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Bellingshausen Sea

Slow freeze up continues in the Bellingshausen Sea. New ice continues to form along the coast, with ice now forming along the Peninsula and around islands.

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Ross Sea

Significant freeze up has occurred across the Ross Sea, with the new ice extending northward by 250NM in the central Ross Sea marking the most extreme growth. Katabatic winds have continuously been generating new ice off the Ross Ice Shelf.

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Weddell Sea East

Added several lines to show where MY ice is not what analyst depicted. Grew MY westward from WeddW into BellE where there was only 3/1 in previous week.

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Weddell Sea East

Increase in new and young ice development with the ice edge expanding most significantly in the eastern Weddell. The remaining first year ice converted to multiyear ice as the melt season has concluded.

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Weddell Sea West

Added several lines to show where MY ice is not what analyst depicted. Grew MY westward from WeddW into BellE where there was only 3/1 in previous week.

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Weddell Sea West

Increase in new and young ice development with the ice edge expanding most significantly in the eastern Weddell. The remaining first year ice converted to multiyear ice as the melt season has concluded.

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Wilkes Land Region

With the passage of the Antarctic ice birthday, the first year ice has become multi-year ice. Below freezing temperatures throughout the region has allowed for new and young ice growth throughout Wilkes Land Sea, increasing the ice concentration, and expanding the ice edge.

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