Why is it in the News?

New research has found a "missing piece of the puzzle" of West Antarctic Ice Sheet melt, revealing that the collapse of the ice sheet in the Ross Sea region can be prevented—if we keep to a low-emissions pathway.

About Ross Ice Shelf:

• The Ross Ice Shelf is a floating mass of land-ice, with a front between 15 and 50 meters high. ?
• It is the largest ice shelf in Antarctica.
• Situated in the Ross Sea, it extends off the coast into the ocean, covering an impressive 487,000 square kilometers, roughly the size of France.
• Despite its vast surface area, only 10% of the ice shelf is visible above the water, mostly concealed beneath hundreds of meters of ice.
• The thickness of the Ross Ice Shelf varies significantly, ranging from about 100 meters to several hundred meters at its thickest points near the areas where the shelf connects to the Antarctic continent.
• The formation of the Ross Ice Shelf is the result of snow accumulation and compaction over time, which ultimately transforms into ice.
• It is continuously fed by glaciers draining from both the East and West Antarctic Ice Sheets, creating a balance as new ice is added while existing ice is removed through melting at the base and calving at the front.
• This massive ice shelf plays a critical role in stabilizing the Antarctic ice sheet.

About the Ross Sea:

• Location and Size: The Ross Sea is a vast, remote bay located just 320 km from the South Pole, positioned south and slightly east of New Zealand.
• It covers an area of approximately 370,000 square miles (960,000 square km), making it the largest polar marine ecosystem in the world.
• The sea's dynamics are significantly shaped by the coastal East-Wind Drift, which establishes a vast clockwise gyre, complemented by deepwater upwelling phenomena.
• Notably, it holds the distinction of being Antarctica's first protected area, serving as a habitat for a plethora of penguin species and numerous whale species.
• Depth: Despite its vast size, the Ross Sea is relatively shallow, with an average depth of approximately 530 meters.
• Historical Exploration: The sea is named after British explorer Sir James Clark Ross, who first visited the area in 1841 during his expedition to Antarctica.
• The Ross Sea's importance to both the scientific community and global conservation efforts cannot be overstated, as it provides valuable insights into the effects of climate change on polar ecosystems.