* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, June 25, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

  • 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
    Frontdoor Announces Tech Expert Dr. Bala Ganesh as Chief Technology Officer – Business Wire

    Frontdoor Appoints Tech Visionary Dr. Bala Ganesh as New Chief Technology Officer

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    China’s Military Introduces Mosquito-Sized Drones: A Game-Changing Surveillance Technology – Indian Defence Review

    China Unveils Mosquito-Sized Drones: Revolutionizing Surveillance Technology

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

  • 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
    Frontdoor Announces Tech Expert Dr. Bala Ganesh as Chief Technology Officer – Business Wire

    Frontdoor Appoints Tech Visionary Dr. Bala Ganesh as New Chief Technology Officer

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    China’s Military Introduces Mosquito-Sized Drones: A Game-Changing Surveillance Technology – Indian Defence Review

    China Unveils Mosquito-Sized Drones: Revolutionizing Surveillance Technology

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    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

2023 ozone hole ranks 16th largest, NASA and NOAA researchers find

November 5, 2023
in Science
2023 ozone hole ranks 16th largest, NASA and NOAA researchers find
Share on FacebookShare on Twitter

2023 ozone hole ranks 16th largest, NASA and NOAA researchers find

This map shows the size and shape of the ozone hole over the South Pole on September 21, 2023, the day of its maximum extent, as calculated by the NASA Ozone Watch team. Moderate ozone losses (orange) are visible amid widespread areas of more potent ozone losses (red). Credit: NASA Earth Observatory

The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest single-day ozone hole since 1979.

During the peak of the ozone depletion season from Sept. 7 to Oct. 13, the hole this year averaged 8.9 million square miles (23.1 million square kilometers), approximately the size of North America, making it the 16th largest over this period.

“It’s a very modest ozone hole,” said Paul Newman, leader of NASA’s ozone research team and chief scientist for Earth sciences at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “Declining levels of human-produced chlorine compounds, along with help from active Antarctic stratospheric weather slightly improved ozone levels this year.”

The ozone layer acts like Earth’s natural sunscreen, as this portion of the stratosphere shields our planet from the sun’s harmful ultraviolet radiation. A thinning ozone layer means less protection from UV rays, which can cause sunburns, cataracts, and skin cancer in humans.

Every September, the ozone layer thins to form an “ozone hole” above the Antarctic continent. The hole isn’t a complete void of ozone; scientists use the term “ozone hole” as a metaphor for the area in which ozone concentrations above Antarctica drop well below the historical threshold of 220 Dobson Units. Scientists first reported evidence of ozone depletion in 1985 and have tracked Antarctic ozone levels every year since 1979.

2023 ozone hole ranks 16th largest, NASA and NOAA researchers find

NOAA scientists launch a weather balloon carrying an ozonesonde at the South Pole on Oct. 1, 2023. Credit: Marc Jaquart/IceCube

Antarctic ozone depletion occurs when human-made chemicals containing chlorine and bromine first rise into the stratosphere. These chemicals are broken down and release their chlorine and bromine to initiate chemical reactions that destroy ozone molecules.

The ozone-depleting chemicals, including chlorofluorocarbons (CFCs), were once widely used in aerosol sprays, foams, air conditioners, fire suppressants, and refrigerators. CFCs, the main ozone-depleting gases, have atmospheric lifetimes of 50 to over 100 years.

The 1987 Montreal Protocol and subsequent amendments banned the production of CFCs and other ozone-destroying chemicals worldwide by 2010. The resulting reduction of emissions has led to a decline in ozone-destroying chemicals in the atmosphere and signs of stratospheric ozone recovery.

NASA and NOAA researchers monitor the ozone layer over the pole and globally using instruments aboard NASA’s Aura, NOAA-NASA Suomi NPP, and NOAA-20 satellites. Aura’s Microwave Limb Sounder also estimates levels of ozone-destroying chlorine.

Scientists also track the average amount of depletion by measuring the concentration of ozone inside the hole. At NOAA’s South Pole Baseline Atmospheric Observatory, scientists measure the layer’s thickness by releasing weather balloons carrying ozonesondes and by making ground-based measurements with a Dobson spectrophotometer.

NOAA’s measurements showed a low value of 111 Dobson units (DU) over the South Pole on Oct 3. NASA’s measurements, averaged over a wider area, recorded a low of 99 DUs on the same date. In 1979, the average concentration above Antarctica was 225 DU.

Credit: NASA’s Goddard Space Flight Center/ Kathleen Gaeta

“Although the total column ozone is never zero, in most years, we will typically see zero ozone at some altitudes within the stratosphere over the South Pole,” said NOAA research chemist Bryan Johnson, project leader for the Global Monitoring Laboratory’s ozonesonde group. “This year, we observed about 95% depletion where we often see near 100% loss of ozone within the stratosphere.”

The Hunga Tonga-Hunga Ha’apai volcano—which violently erupted in January 2022 and blasted an enormous plume of water vapor into the stratosphere—likely contributed to this year’s ozone depletion. That water vapor likely enhanced ozone-depletion reactions over the Antarctic early in the season.

“If Hunga Tonga hadn’t gone off, the ozone hole would likely be smaller this year,” Newman said. “We know the eruption got into the Antarctic stratosphere, but we cannot yet quantify its ozone hole impact.”

View the latest status of the ozone layer over the Antarctic with NASA’s ozone watch.

Citation:
2023 ozone hole ranks 16th largest, NASA and NOAA researchers find (2023, November 4)
retrieved 4 November 2023
from https://phys.org/news/2023-11-ozone-hole-16th-largest-nasa.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2023-11-ozone-hole-16th-largest-nasa.html

Tags: ozoneranksscience
Previous Post

Olfactory threat extinction in the piriform cortex: An age-dependent employment of NMDA receptor-dependent long-term depression

Next Post

Understanding all kinds of English accents can improve empathy and learning—and even be a matter of life and death

Why the Strait of Hormuz, A Vital Oil Route, Is Vulnerable to Israel-Iran Conflict – The New York Times

Why the Strait of Hormuz, A Vital Oil Route, Is Vulnerable to Israel-Iran Conflict – The New York Times

June 25, 2025
Dying honey bees are threatening California’s economy. Can Central Valley lawmakers save them? – CalMatters

Dying honey bees are threatening California’s economy. Can Central Valley lawmakers save them? – CalMatters

June 25, 2025
Butler launches sports, entertainment institute focused on local events – Inside INdiana Business

Butler Launches Exciting New Sports and Entertainment Institute Spotlighting Local Events

June 25, 2025
Expert panel picked by RFK Jr. will scrutinize the vaccine schedule for kids – NPR

Expert panel picked by RFK Jr. will scrutinize the vaccine schedule for kids – NPR

June 25, 2025
What Is a Democratic Socialist? – The New York Times

What Is a Democratic Socialist? – The New York Times

June 25, 2025
Frontdoor Announces Tech Expert Dr. Bala Ganesh as Chief Technology Officer – Business Wire

Frontdoor Appoints Tech Visionary Dr. Bala Ganesh as New Chief Technology Officer

June 25, 2025
City council approves Sports Illustrated Resort – WBRC 6 News

City Council Approves Exciting New Sports Illustrated Resort Project

June 25, 2025
MEPAG Search for Life – Science Analysis Group Science Community Virtual Workshops – astrobiology.com

MEPAG Search for Life – Science Analysis Group Science Community Virtual Workshops – astrobiology.com

June 25, 2025
Volusia County Marine Science Center reopens to the public – Spectrum News 13

Volusia County Marine Science Center Welcomes Visitors Once Again

June 25, 2025

Boss Lifestyle’ Ponzi Scheme Mastermind Admits Guilt in $23 Million Fraud Scandal

June 25, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
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 (698)
  • Economy (717)
  • Entertainment (21,612)
  • General (15,562)
  • Health (9,756)
  • Lifestyle (722)
  • News (22,149)
  • People (718)
  • Politics (724)
  • Science (15,934)
  • Sports (21,213)
  • Technology (15,702)
  • World (697)

Recent News

Why the Strait of Hormuz, A Vital Oil Route, Is Vulnerable to Israel-Iran Conflict – The New York Times

Why the Strait of Hormuz, A Vital Oil Route, Is Vulnerable to Israel-Iran Conflict – The New York Times

June 25, 2025
Dying honey bees are threatening California’s economy. Can Central Valley lawmakers save them? – CalMatters

Dying honey bees are threatening California’s economy. Can Central Valley lawmakers save them? – CalMatters

June 25, 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