* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Saturday, September 6, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

    Jenny Han Dropped a Major ‘The Summer I Turned Pretty’ Easter Egg Revealing [SPOILER] – yahoo.com

    Jenny Han Just Unveiled a Huge ‘The Summer I Turned Pretty’ Easter Egg That Changes Everything [SPOILER]

    Liam Payne’s Cousin Ross Harris Honors Late Singer With Emotional Song ‘Bones’ – yahoo.com

    Liam Payne’s Cousin Ross Harris Honors Late Singer with Emotional New Song ‘Bones

    Country music star apologizes after drunken show ends with cops taking him down: ‘I’m not OK’ – PennLive.com

    Country Music Star Apologizes After Drunken Show Ends in Police Intervention: ‘I’m Not OK

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Credo Technology Group Holding Ltd. (CRDO) Surpasses Q1 Earnings and Revenue Estimates – Yahoo Finance

    Credo Technology Group Surpasses Q1 Earnings and Revenue Expectations

    The Economist is hiring a science and technology correspondent – The Economist

    Exciting Opportunity: Become Our Next Science and Technology Correspondent!

    Blockchain lender Figure Technology seeks to raise up to $526M in IPO (FIGR:Pending) – Seeking Alpha

    Blockchain Lender Figure Technology Sets Sights on $526M in Thrilling IPO Launch

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

    Jenny Han Dropped a Major ‘The Summer I Turned Pretty’ Easter Egg Revealing [SPOILER] – yahoo.com

    Jenny Han Just Unveiled a Huge ‘The Summer I Turned Pretty’ Easter Egg That Changes Everything [SPOILER]

    Liam Payne’s Cousin Ross Harris Honors Late Singer With Emotional Song ‘Bones’ – yahoo.com

    Liam Payne’s Cousin Ross Harris Honors Late Singer with Emotional New Song ‘Bones

    Country music star apologizes after drunken show ends with cops taking him down: ‘I’m not OK’ – PennLive.com

    Country Music Star Apologizes After Drunken Show Ends in Police Intervention: ‘I’m Not OK

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Credo Technology Group Holding Ltd. (CRDO) Surpasses Q1 Earnings and Revenue Estimates – Yahoo Finance

    Credo Technology Group Surpasses Q1 Earnings and Revenue Expectations

    The Economist is hiring a science and technology correspondent – The Economist

    Exciting Opportunity: Become Our Next Science and Technology Correspondent!

    Blockchain lender Figure Technology seeks to raise up to $526M in IPO (FIGR:Pending) – Seeking Alpha

    Blockchain Lender Figure Technology Sets Sights on $526M in Thrilling IPO Launch

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Cold Case: Scientific Sleuths Solve the Case of the Mysterious Giant Opening in Antarctic Sea Ice

May 8, 2024
in Science
Cold Case: Scientific Sleuths Solve the Case of the Mysterious Giant Opening in Antarctic Sea Ice
Share on FacebookShare on Twitter

Satellite Image Maud Rise Polynya in Antarctica

NASA satellite image of the Maud Rise polynya. Polynyas can form in sea ice over the open ocean as warm water is brought to the surface by ocean currents. Credit: NASA Earth Observatory

Researchers have discovered the missing piece of the puzzle behind a rare opening in the sea ice around Antarctica, that occurred during the winters of 2016 and 2017. It reveals a key process that had eluded scientists as to how the opening, called a polynya, was able to form and persist for several weeks. The results were published on May 1 in the scientific journal Science Advances.

The polynya that has eluded the researchers is called ‘Maud Rise’ and is sometimes formed in the Weddell Sea in Antarctica above the seamount with the same name. For many years, the Maud Rise polynya was formed only occasionally and for a limited time, but in 2016 and 2017, the polynya grew to be as big as Switzerland.

“We now understand that the polynya was caused by a complex interaction between the unique geography of the ocean floor and an unusually strong wind that produced unusually strong ocean currents transporting heat and salt water towards the surface. But it also required the contribution of a very specific key process,” says Fabien Roquet, Professor of Physical Oceanography at the Department of Marine Sciences at the University of Gothenburg, and one of the researchers behind the discovery.

Detective Work To Find Missing Piece

Polynyas are important areas that help mitigate the increase in atmospheric carbon dioxide and support enhanced biological activity in the sea ice-covered areas. They usually form in coastal areas when strong coastal winds blow off the continent and push the ice away, exposing the seawater below. But they can also sometimes – as over Maud Rise – form in sea ice over the open ocean as warm water is transported to the surface by ocean currents.

Maud Rise Polynya in Antarctica Size

Researchers now know why the Maud Rise polynya in Antarctica grew in 2016 and 2017 to become as big as Switzerland from being barely visible at all. The image shows a data image of the Maud Rise polynya and concentration of its surrounding sea ice. Credit: Birte Gülk

“This upwelling of warmer water explains how the sea ice might melt. But as sea ice melts this leads to a freshening of the surface water, which should in turn put a stop to this upwelling. So, another process must be happening for the polynya to persist. There must be an additional input of salt from somewhere,” says Aditya Narayanan, researcher at the National Oceanographic Centre (UK) and main author of the study.

A Special Process Brought Salt Into the Region

The researchers began their detective work to understand where the additional salty seawater came from. They used remotely sensed sea ice maps, observations from autonomous floats and tagged marine mammals, alongside a computational model of the ocean’s state.

They found that as the unusually strong Weddell Sea current flowed around Maud Rise, the turbulent eddies moved salt onto the top of the sea mount. From here, a process called ‘Ekman transport’ helped to move the salt onto the northern flank of Maud Rise, where the polynya first formed. ‘Ekman transport’, named after the Swedish oceanographer Vagn Walfrid Ekman who pioneered the study of how winds create ocean currents, is a very specific process that involves water moving at a 90-degree angle to the direction of the wind blowing above, influencing ocean currents.

“Ekman transport was the essential missing piece of the puzzle that was necessary to increase the balance of salt and sustain the mixing of salt and heat towards the surface water,” says Fabien Roquet.

Polynyas Are Important for the Climate

The effects of a polynya can persist in the ocean for years after they have formed. They can change the way water moves and how currents carry heat towards the continent. The dense waters that form here can spread across the global ocean.

“Some of the same processes that were involved in the forming of the Maud Rise polynya, such as the upwelling of deep and salty water, are also driving a general reduction in sea ice in the Southern Ocean,” says Professor Sarah Gille, University of California San Diego, a co-author of the study.

“This was the first time since the 1970s that we have had such a large and long-lived polynya in the Weddell Sea,” says Aditya Narayanan.

For more on this research, see Scientists Finally Explain Huge Hole in Antarctic Sea Ice.

Reference: “Ekman-driven salt transport as a key mechanism for open-ocean polynya formation at Maud Rise” by Aditya Narayanan, Fabien Roquet, Sarah T. Gille, Birte Gülk, Matthew R. Mazloff, Alessandro Silvano and Alberto C. Naveira Garabato, 1 May 2024, Science Advances.
DOI: 10.1126/sciadv.adj0777

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/cold-case-scientific-sleuths-solve-the-case-of-the-mysterious-giant-opening-in-antarctic-sea-ice/

Tags: scienceScientificsleuths
Previous Post

Dogged Dark Matter Hunters Find New Hiding Places to Check

Next Post

A New Frontier in Chemistry: Roaming Reactions Shatter Old Assumptions

Abby Dow and England near record territory as Australia search for upset – The Guardian

Abby Dow and England Close in on Record as Australia Hunts for an Upset

September 6, 2025
America is getting the economy we voted for – Noah Smith | Substack

America Is Finally Experiencing the Economy We Created

September 6, 2025
Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

September 6, 2025
HHS responds to report about autism and acetaminophen : Shots – Health News – NPR

HHS Addresses New Findings on Autism and Acetaminophen Use

September 6, 2025
September 2, 2025: Trump administration news – CNN

September 2, 2025: Trump administration news – CNN

September 6, 2025
Blending art, culture and native plants at Wakamatsu – Mountain Democrat

Discover the Harmony of Art, Culture, and Native Plants at Wakamatsu

September 6, 2025
The Two-Body Problem for Women in Science – Nautilus | Science Connected

The Two-Body Problem for Women in Science – Nautilus | Science Connected

September 6, 2025
How AI and Automation are Speeding Up Science and Discovery – Berkeley Lab News Center (.gov)

How AI and Automation Are Accelerating Breakthroughs in Scientific Discovery

September 6, 2025

American Trust Investment Services Serves as Exclusive Placement Agent in $9 Million Follow-On Offering for Nova LifeStyle, Inc. – Morningstar

September 6, 2025
Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

September 6, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (809)
  • Economy (828)
  • Entertainment (21,705)
  • General (16,884)
  • Health (9,869)
  • Lifestyle (840)
  • News (22,149)
  • People (829)
  • Politics (835)
  • Science (16,038)
  • Sports (21,326)
  • Technology (15,808)
  • World (809)

Recent News

Abby Dow and England near record territory as Australia search for upset – The Guardian

Abby Dow and England Close in on Record as Australia Hunts for an Upset

September 6, 2025
America is getting the economy we voted for – Noah Smith | Substack

America Is Finally Experiencing the Economy We Created

September 6, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version