Navigation Links
Scientists find Antarctic ozone hole to recover later than expected

Scientists from NASA and other agencies have concluded that the ozone hole over the Antarctic will recover around 2068, nearly 20 years later than previously believed.

Researchers from NASA, the National Oceanic and Atmospheric Administration (NOAA) and the National Center for Atmospheric Research (NCAR) have developed a new tool, a math-based computer model, to predict the timing of ozone hole recovery. Their findings will be published tomorrow in Geophysical Research Letters.

The Antarctic ozone hole is a massive loss of ozone that occurs each spring in the Southern Hemisphere. The ozone hole is caused by chlorine and bromine gases in the stratosphere, an upper layer of the atmosphere, that destroy ozone in an annually recurring process that takes place in the unique meteorological conditions of the Antarctic stratosphere. Those gases come from human-produced chemicals such as chlorofluorocarbons.

"The Antarctic ozone hole is the poster child of ozone loss in our atmosphere," said lead author Paul Newman, a research scientist at NASA's Goddard Space Flight Center, Greenbelt, Md. "Over areas that are farther from the poles like Africa or the continental U.S., the annually averaged levels of upper atmospheric ozone are only three to six percent below natural levels. But, over Antarctica, ozone is 70 percent lower in the spring. This new method allows us to more accurately estimate ozone-depleting gases over Antarctica, and how they will decrease over time, reducing the ozone hole area."

For the first time, a model combines estimates of future Antarctic chlorine and bromine levels based on current amounts as captured from NASA satellite observations, NOAA ground-level observations, NCAR airplane-based observations, with anticipated future emissions, the time it takes for the transport of those emissions into the Antarctic stratosphere, and assessments of future weather patterns over Antarctica.

The model accurately reproduces
'"/>

Source:NASA/Goddard Space Flight Center--EOS Project Science Office


Page: 1 2 3

Related biology news :

1. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
2. Scientists Replicate Hepatitis C Virus in Laboratory
3. Scientists detect probable genetic cause of some Parkinsons disease cases
4. Scientists find missing enzyme for tuberculosis iron scavenging pathway
5. Scientists seek answers on what activates deadly anthrax spores
6. Yale Scientists Find MicroRNA Regulates Ras Cancer Gene
7. Scientists collaborate to assess health of global environment
8. Scientists decipher genome of fungus that can cause life-threatening infections
9. Scientists discover the cellular roots of graying hair
10. Scientists rid stem cell culture of key animal cells
11. Scientists develop new color-coded test for protein folding
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Scientists find Antarctic ozone hole recover later than expected

(Date:7/31/2015)... , 31. Juli 2015 Die 10. internationale ... von BGI veranstaltet und findet vom 22. bis ... , statt. Die Konferenz ... ihrem Start 2006 ist die ICG weltweit zu ... geworden. Sie ist eines der dynamischsten, enthusiastischsten und ...
(Date:7/31/2015)... , July 31, 2015 The 10 th ... be held by BGI from October 22-25, 2015, in ... The conference is celebrating its 10 th anniversary this ... of the world,s most influential annual meetings in the ,omics, ... enjoyable scientific gatherings. ICG-10 focuses on recent ...
(Date:7/27/2015)... JOSE, Calif. , July 27, 2015 /PRNewswire/ ... developer of human interface solutions, today announced that ... ® touchscreen solution for its stylish smartwatch. ... for its proven reliability, low power and highly ... a wet finger. Huawei designers also required a ...
Breaking Biology News(10 mins):Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3The 10th International Conference on Genomics (ICG-10) to Open in October 2Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3
... Inspired by recent breakthroughs in research, today the International ... entitled Research to Reality: Funding Progress. Funds raised ... of crucial research, and bring promise to reality. ... her battle with Rett syndrome in 2003 at age ...
... The Laboratory for Virology and Experimental Chemotherapy (Rega Institute) ... K.U.Leuven will receive a total of 2.8 million euro from ... the search for possible new medication for the treatment of ... fever, is widespread in tropical and subtropical regions. As of ...
... of researchers led by geneticist Jonathan Sebat, Ph.D., of Cold ... chromosome 16 that substantially increases risk for schizophrenia. ... number variant (CNV). CNVs are areas of the genome where ... CNV is located in a region referred to by scientists ...
Cached Biology News:IRSF receives $1 million matching gift 2IRSF receives $1 million matching gift 3Wellcome Trust funds dengue fever research in Leuven 2CSHL-led team discovers rare mutation dramatically increasing schizophrenia risk 2
(Date:7/30/2015)... July 30, 2015 AACC welcomed thousands ... 2015 AACC Annual Meeting & Clinical Lab Expo ... 26–30. The meeting showcased revolutionary advancements in clinical ... of healthcare providers to diagnose patients quickly and ... treatment. As of Wednesday, July ...
(Date:7/30/2015)... ... July 30, 2015 , ... Tronics, a designer ... & Marketing Director. , With more than 25 years of experience in ... Tronics’ business development activities worldwide. He brings to the company his strong expertise ...
(Date:7/30/2015)... 30, 2015 According to a ... Molecular Modeling, PB/PK, PKPD, Trial Design, Toxicity Prediction, In-house, ... Clinical Trial), by End Users - Global Forecast to ... to reach USD 2,107.99 million by 2020 from USD ... Browse more than 75 ...
(Date:7/30/2015)... , July 30, 2015   Aratana Therapeutics, ... therapeutics company focused on the licensing, development and ... today announced that its strategic partner VetStem Biopharma, ... confirmation study of AT-016, an adipose-derived allogeneic stem ... treatment of osteoarthritis pain in dogs. ...
Breaking Biology Technology:Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Tronics appoints Francois Vieillard as Sales and Marketing Director 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5
... across your field of vision is a step closer to ... could potentially provide the wearer with hands-free information updates. ... Publishing,s Journal of Micromechanics and Microengineering , researchers constructed ... it on live eyes. There were no signs of adverse ...
... of Scientific Research (AFOSR) was chosen by Time Magazine for its ... Aliev, Yuri Gartstein and Ray Baughman, of the University of Texas ... to as the "mirage effect from thermally modulated transparent carbon nanotube ... an ,invisibility cloak,." The key to ...
...  According to results from the most recent McGladrey ... those in the durable goods sector, suffered from a ... energy and raw materials costs, and falling business and ... Monitor participants say their businesses are thriving and growing. ...
Cached Biology Technology:Terminator-style info-vision takes step towards reality 2McGladrey Manufacturing and Distribution Monitor® Shows Business Accelerating Despite Concerns About Government Gridlock 2McGladrey Manufacturing and Distribution Monitor® Shows Business Accelerating Despite Concerns About Government Gridlock 3McGladrey Manufacturing and Distribution Monitor® Shows Business Accelerating Despite Concerns About Government Gridlock 4