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Antarctica' Shrinking Sea Ice

Researchers have been monitoring the expanse and density of Antarctic sea ice for numerous years, with the recent two years triggering worldwide concerns.

 As temperatures set new records globally, the ice sheet covering the southernmost continent has noticeably diminished compared to previous decades. 

The graphic created by the Visual Capitalist team employs tracking information sourced from the National Oceanic and Atmospheric Administration (NOAA) and the National Snow and Ice Data Center (NSIDC) to illustrate the current sea ice extent in Antarctica, reflecting data up to August 2023.

In 2011 and 2023, sea extent in Antarctica continued to reach record lows.

Based on satellite information monitored by the NSIDC, the expanse of sea ice in Antarctica has diminished to unprecedented levels. 

A comparison with historical data dating back to 1979 reveals that 2023 has observed daily record lows in sea ice extent persistently throughout the year.

On August 24, 2023, the sea ice extent in Antarctica had reduced by 1.42 million square kilometers (0.55 sq. mi) compared to the previous year. When contrasted with the median extent for the same date spanning 1980 to 2010, the reduction was even more pronounced at 2.07 million square kilometers (0.80 sq. mi).

It's important to note that July and August represent the coldest months in Antarctica. Given its location at the South Pole, the continent experiences an extended winter period from the end of February to the end of September. During this time, ice accumulates in preparation for the arrival of melting temperatures in October.

Despite being thousands of kilometers away from much of the world's land and population, Antarctica's ice holds significant influence over the planet.

The expansive ice sheet of Antarctica plays a crucial role in sunnier months by reflecting a substantial portion of sunlight, thereby reducing oceanic absorption. Its broader expanse, formed during winter, allows for greater sunlight and heat reflection.

Additionally, it's vital to recognize that this ice results from a cyclical process of freezing and melting oceanic water. The extent to which ice is lost to the oceans relative to annual accumulation directly contributes to global sea level rise.

Want to learn more about Antarctica? Then have a look at:

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