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TC - Change in Antarctic ice shelf area from 2009 to 2019

Abstract. Antarctic ice shelves provide buttressing support to the ice sheet, stabilising the flow of grounded ice and its contribution to global sea levels. Over the past 50 years, satellite observations have shown ice shelves collapse, thin, and retreat; however, there are few measurements of the Antarctic-wide change in ice shelf area. Here, we use MODIS (Moderate Resolution Imaging Spectroradiometer) satellite data to measure the change in ice shelf calving front position and area on 34 ice shelves in Antarctica from 2009 to 2019. Over the last decade, a reduction in the area on the Antarctic Peninsula (6693 km2) and West Antarctica (5563 km2) has been outweighed by area growth in East Antarctica (3532 km2) and the large Ross and Ronne–Filchner ice shelves (14 028 km2). The largest retreat was observed on the Larsen C Ice Shelf, where 5917 km2 of ice was lost during an individual calving event in 2017, and the largest area increase was observed on Ronne Ice Shelf in ....

United Kingdom , Southern Ocean , Oceans General , Amundsen Sea , United States , Heatherl Selley , Nicolas Jourdain , Weddell Sea , Le Brocq , Juliar Andreasen , Ross Sea , Annae Hogg , Research Environments Measures Antarctic Grounding Line , University Of Minnesota Department Soil , National Aeronautics , University Of Leeds , Natural Environment Research Council , University Of Minnesota , Department Of Soil , Space Administration , Moscow University , School Of Earth , Moscow University Ice Shelf , Moderate Resolution Imaging Spectroradiometer , Antarctic Peninsula , West Antarctica ,

Antarctic Ice Shelves Growing • Watts Up With That?

Our observations show that Antarctic ice shelves gained 661 Gt of ice mass over the past decade, whereas the steady-state approach would estimate substantial ice loss over the same period, demonstrating the importance of using time-variable calving flux observations to measure change. ....

Amundsen Sea , Oceans General , Jordan General , United States , United Kingdom , Southern Ocean , City Of , District Of Columbia , Le Brocq , Weddell Sea , Juliar Andreasen , Caratori Tontini , Heatherl Selley , Annae Hogg , Nicolas Jourdain , Ross Sea , University Of Leeds , National Snow , School Of Earth , Ice Data Center , Moscow University , University Of Minnesota Department Soil , Natural Environment Research Council , Space Administration , Research Environments Measures Antarctic Grounding Line , Geological Society ,

Glaciologist Says New Melting Study 'Frankly Scary. Even to Me.'

CityWatch is published 24/7 with special e-news blasts on Monday and Thursday evening, with Extras as appropriate around special events such as elections or important issues. Share it with your Neighborhood Council and other activists. ....

France General , Eric Rignot , Christine Batchelor , Newcastle University , University Of California At Irvine , Washington Postreported , Pope Glacier , Thwaites Glacier , Erspectives Voices , Eighborhood Councils , City Council , A Watchdog ,

New Research Raises More Questions for Sea Level Rise

Https://www.youtube.com/watch?v=71l9lzLsBRc&t=1s Meltwater Pulse 1A is scientist's name for a period during the warmup from the last glacial period (as the Earth's axis slowly tilted more in the direction of the sun over 10,000 years or so, warming especially the northern polar regions) when a gradual ice retreat turned into a torrent of meltwater, and sea… ....

United Kingdom , Eric Rignot , Christine Batchelor , Frazer Christie , Scott Polar Research Center , University Of Cambridge , Newcastle University , Meltwater Pulse , Dutton Phd , Sea Level , Eurasian Ice Sheet , Pope Glacier , West Antarctica , Thwaites Glacier ,

'Scary' Study Finds Ice Sheets in the Past Retreated at Rates of Nearly 2,000 Feet per Day

New research found that ice sheets could collapse around 20 times faster than previously assumed as the climate warms. ....

United States , United Kingdom , Christine Batchelor , Marta Moreno Ib , Eric Rignot , Johannes Feldmann , Newcastle University , Geological Survey Of Norway , Washington Post , Potsdam Institute For Climate Impact Research , Nature Wednesday , Geological Survey , Pope Glacier , West Antarctic , Potsdam Institute , Climate Impact Research ,