Antarctic

Modelling Ancient Antarctic Ice Sheets Helps Us See Future Of Global Warming

In order to get a sense of what our future may hold, scientists have been looking to the deep past. Now, new research from the University of Massachusetts Amherst, which combines climate, ice sheet and vegetation model simulations with a suite of...
Related topics: Global Warming

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Ocean Temperature Reconstructed Over The Last 700,000 Years

Bern’s ice core researchers were already able to demonstrate in 2008 how the concentration of CO2 in the atmosphere has changed over the past 800,000 years. Now, using the same ice core from the Antarctic, the group led by Bernese climate...
Related topics: Carbon Dioxide

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“unimaginable Amounts Of Water”: Human-made Global Heating In Danger Of...

Ann Arbor (Informed Comment) – A new article in Geophysical Research Letters found that four times as much of the Antarctic ices shelves would melt under a scenario where we heat the earth by 7.2 degrees F. (4 degrees C.) as opposed to...

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Current Climate Model Simulations Overestimate Future Sea-level Rise

The melting rate of the Antarctic ice sheet is mainly controlled by the increase of ocean temperatures surrounding Antarctica. Using a new, higher-resolution climate model simulation, scientists from Utrecht University found a much slower ocean...
Related topics: Antarctica (science)

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Mass Balance Of The Antarctic Ice Sheet 1992–2016: Reconciling Results From Grace Gravimetry With...

During 1992–2016, the AIS changed from a positive mass balance of over 100 Gt a−1, which was reducing sea-level rise by 0.3 mm a−1, to a state of balance close to zero by 2014. The mass balance successively changed from a gain of 144 ± 61 Gt...

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Video Shows A Massive Fireball Destroying The Deck Of A Supply Ship In The Antarctic Ocean

A screenshot from a video of the fire. YouTube/Guardian Australia A video shows shows a fire erupting on a vessel in the Antarctic Ocean. It left the ship with a damaged engine and only able to move at slower speeds. No injuries were reported, and...
Related topics: Science Videos, Screenshots, Youtube

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Claim: Evidence Of Antarctic Glacier’s Tipping Point Confirmed For First Time

He added: "The possibility of Pine Island Glacier entering an unstable retreat has been raised before but this is the first time that this possibility is rigorously established and quantified.

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Ancient Meteoritic Impact Over Antarctica 430,000 Years Ago

A research team of international space scientists has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.
Related topics: Antarctica (science)

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Changes In Antarctic Marine Ecosystems

Understanding the evolution of the polar sea ice is not enough to study the effects of the climate change on marine ecosystems in Antarctic seafloors. It is also necessary to determine the intensity of phytoplankton local production during the...

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Changes In Antarctic Marine Ecosystems

Understanding the evolution of the polar sea ice is not enough to study the effects of the climate change on marine ecosystems in Antarctic seafloors. It is also necessary to determine the intensity of phytoplankton local production during the...

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Unforced Variations: Mar 2021

This month’s open thread. Northern Hemisphere Spring is on it’s way, along with peak Arctic/minimum Antarctic sea ice, undoubtedly more discussion about the polar vortex, and the sharpening up of the (currently very uncertain) ENSO...
Related topics: Arctic

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China's Next Geopolitical Goal: Dominate Antarctica

Alexander B. Gray China Antarctica, Antarctic The Biden administration has an opportunity to push back against China’s ambitions in the Antarctic and affirm the international institutions that it has promised to revive. China’s ambitions in...
Related topics: China, Joe Biden, Arctic

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Polarstern Expedition Investigates Massive Calved Iceberg

Roughly two weeks ago, a massive iceberg calved from the Antarctic Ice Sheet. As the only research vessel nearby, the Polarstern took the opportunity to enter the area between the iceberg and the Brunt Ice Shelf. The first images from the seafloor...
Related topics: Icebergs

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Antarctic Peninsula Likely To Warm Over Next Two Decades

An analysis of historic and projected simulations from 19 global climate models shows that, because of climate change, the temperature in the Antarctic peninsula will increase by 0.5 to 1.5 degrees Celsius by 2044.

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Icecube Detection Of High-energy Particle Proves 60-year-old Physics Theory

On December 6, 2016, a high-energy particle hurtled to Earth from outer space at close to the speed of light. It triggered the sensors of the IceCube Neutrino Observatory, a massive telescope buried in the Antarctic glacier. IceCube had seen a...
Related topics: Physics, Space, Neutrinos, Telescopes

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Ice Robots Could Sculpt And Repair Themselves On Other Planets

IceBot is a handmade, proof-of-concept ice robot created in the GRASP Lab at the University of Pennsylvania. While IceBot is currently looked at for Antarctic exploration, researchers hope it could one day be used in space exploration...
Related topics: Robots, Space

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Nasa’s Icesat-2 Satellite Reveals Shape, Depth Of Antarctic Ice Shelf Fractures

PENN STATE Research News When a block of ice the size of Houston, Texas, broke off from East Antarctica’s Amery Ice Shelf in 2019, scientists had anticipated the calving event,…
Related topics: NASA, Space, Satellites, Antarctica (science)

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Antarctic Seals Reveal Worrying Threats To Disappearing Glaciers

More Antarctic meltwater is surfacing than was previously known, modifying the climate, preventing sea ice from forming and boosting marine productivity- according to new research. For the first time, researchers have been able to obtain full-depth...

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An Iceberg The Size Of Los Angeles Just Broke Off Antarctica - And It Could Happen Again Within...

A view of the North Rift crack on the Brunt Ice Shelf in February 2021. Sebastian Gleich/British Antarctic Survey Videos show a 490-square-mile iceberg breaking off Antarctica's Brunt Ice Shelf. NASA is keeping tabs on two other giant cracks in...
Related topics: Icebergs, Antarctica (science), Polls, Science Videos, NASA, Space

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Tundra Vegetation Shows Similar Patterns Along Microclimates From Arctic To Sub-antarctic

Researchers are in the search for generalisable rules and patterns in nature. Biogeographer Julia Kemppinen together with her colleagues tested if plant functional traits show similar patterns along microclimatic gradients across far-apart regions...
Related topics: Arctic

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