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Antarctica 2020

Antarctica 2020

Unread postby Tuike » Fri 07 Feb 2020, 14:51:13

Antarctica has hottest day on record as temperatures reach 18.3°C -euronews
Temperatures in Antarctica reached a new record high on Thursday, reaching 18.3 °C. The new record was set at midday at the Esperanza research station, the Argentinian meteorological agency announced on Twitter. The research station is located at the northern-most part of the pole, some 1,100 km away from the Argentinian city of Ushuaia. It is the highest temperatures ever registered there since records began in 1961, beating the previous record of 17.5°C set in March 2015.

According to the UN's World Meteorological Organisation, the Antarctic Peninsula — defined as the northwest tip near to South America — is one of the "fastest-warming regions of the planet" with temperatures rising by almost 3°C over the past 50 years.
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Re: Antarctica 2020

Unread postby Tanada » Fri 07 Feb 2020, 21:50:02

Tuike wrote:Antarctica has hottest day on record as temperatures reach 18.3°C -euronews
Temperatures in Antarctica reached a new record high on Thursday, reaching 18.3 °C. The new record was set at midday at the Esperanza research station, the Argentinian meteorological agency announced on Twitter. The research station is located at the northern-most part of the pole, some 1,100 km away from the Argentinian city of Ushuaia. It is the highest temperatures ever registered there since records began in 1961, beating the previous record of 17.5°C set in March 2015.

According to the UN's World Meteorological Organisation, the Antarctic Peninsula — defined as the northwest tip near to South America — is one of the "fastest-warming regions of the planet" with temperatures rising by almost 3°C over the past 50 years.


Not to make too much of it but Esperanza Base is just about as far north as you can get and still be in the continent of Antarctica. Heck it is dozens of miles north of the Antarctic Circle, rather like Nome Alaska is on the other end of the planet. It is so far out on the peninsula in fact that it gets maritime climate effects for a large percentage of the year, it only trails off as the sea ice pack expands in deepest winter. Unlike the other stations in Antarctica it has a few hours of daylight even in the deepest part of winter and because it is below the Antarctic Circle it also misses out on the midnite sun effect the other bases have in mid summer.
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Re: Antarctica 2020

Unread postby yellowcanoe » Fri 07 Feb 2020, 22:51:56

Tanada wrote:
Not to make too much of it but Esperanza Base is just about as far north as you can get and still be in the continent of Antarctica. Heck it is dozens of miles north of the Antarctic Circle, rather like Nome Alaska is on the other end of the planet. It is so far out on the peninsula in fact that it gets maritime climate effects for a large percentage of the year, it only trails off as the sea ice pack expands in deepest winter. Unlike the other stations in Antarctica it has a few hours of daylight even in the deepest part of winter and because it is below the Antarctic Circle it also misses out on the midnite sun effect the other bases have in mid summer.


Yes, indeed, the weather on the polar ice cap is vastly different than at Esperanza Base. I have a friend who spent the winter at the South Pole station. The highest temperature recorded there during the entire year prior to his arrival was -19C so even during the height of the summer temperatures are well below the freezing point. Around 50 people stay at the station during the winter months and they have the opportunity to become members of the 300 degree club -- leaving a sauna heated to 200F and briefly walking outside where the temperature is at least -100F.
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Re: Antarctica 2020

Unread postby rockdoc123 » Sat 08 Feb 2020, 12:51:58

Indeed at the same time Esperanza was seeing a high Scott-Amundsen base saw a high temperature of -45 C. During the summer months the coastal stations around Antarctica usually see short time highs during the day a few degrees above zero. The peninsula is a different story as it extends quite aways north and has a climate much more like southern Argentina.
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Re: Antarctica 2020

Unread postby dohboi » Wed 12 Feb 2020, 16:02:40

Ancient Antarctic ice melt increased sea levels by 3+ meters—and it could happen again

https://phys.org/news/2020-02-ancient-a ... rsand.html

Using data gained from their fieldwork, the team ran model simulations to investigate how warming might affect the floating ice shelves. These shelves currently buttress the ice sheets and help slow the flow of ice off the continent.

The results suggest a 3.8m sea level rise during the first thousand years of a 2°C warmer ocean. Most of the modelled sea level rise occurred after the loss of the ice shelves, which collapsed within the first two hundred years of higher temperatures.

Notably, the researchers warn that this tipping point may be closer than we think...
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