Navigation Links
Rapid upper ocean warming linked to declining aerosols
Date:7/23/2013

found that models with a delayed peak in Northern Hemisphere aerosol levels after the 1980s had a tendency to simulate a delayed rapid Indian Ocean warming until well after 2020, and that the rate of warming related to how quickly the aerosol levels declined after their peak.

"We know that aerosols in the atmosphere generally cool the Northern Hemisphere by scattering incoming sunlight. This, in turn, increases the movement of heat from the Southern Hemisphere oceans to the Northern Hemisphere oceans via a global oceanic conveyor belt, travelling south from the subtropical Indian Ocean, passing the southern tip of Africa into the south Atlantic and then north along the Gulf Stream" said co-author Dr Wenju Cai.

"Together with a greenhouse gas-induced southward shift the Indian subtropical ocean gyres towards the Antarctic, these processes delay the Indian Ocean warming in the models," Dr Cai said.

"What makes this work fascinating is the fact that human-emitted aerosols have such a large impact on remote ocean temperatures" says Mr Cowan. "For many years aerosols have masked the direct surface warming induced by greenhouse gases in many Northern Hemisphere regions, however in the Southern subtropical Indian Ocean both aerosols and greenhouse gases have historically conspired to produce a net oceanic cooling, and now the reverse of some of these processes is occurring."

Mr Cowan said that despite the observed rapid ocean warming, quantifying exactly how much is due to declining aerosols or increasing greenhouse gases remains difficult, but as human-generated air pollution is all-together phased out, this will undoubtedly reveal the full impact of greenhouse gases.


'/>"/>

Contact: Craig Macaulay
Craig.Macaulay@csiro.au
61-362-325-219
CSIRO Australia
Source:Eurekalert

Page: 1 2

Related biology news :

1. From obscurity to dominance: Tracking the rapid evolutionary rise of ray-finned fish
2. Researchers create method to rapidly identify specific strains of illness
3. Cool it, quick: Rapid cooling leads to stronger alloys
4. Recent progress in gene-sensing strategies for rapid detection of foodborne pathogens
5. Hundreds of insect scientists migrating to Rapid City this week
6. Scientists alarmed by rapid spread of Brown Streak Disease in cassava
7. New ACS journal Environmental Science and Technology Letters to rapidly publish urgent research
8. Rapid climate change and the role of the Southern Ocean
9. Mobile LIDAR technology expanding rapidly
10. Psychemedics & TruTouch Announce US Sales/Marketing Distribution Agreement For TruTouch Technologies Rapid Optical Alcohol Detection & Biometric Test
11. Rapid, point-of-care tests for syphilis: The future of diagnosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... mesenchymal stem cells can stimulate neurogenesis in the brain ... (AD) and improve tissue and function injury under the ... the therapeutic effect of adipose-derived stem cells (ADSCs) transplantation ... oxidative injury and neurogenesis in the brain of AD ... Life Sciences, Tsinghua University, China transplanted ADSCs into the ...
(Date:7/11/2014)... spider toxins to study the proteins that let nerve ... they have stumbled upon a biological tactic that may ... plagues in a safe and environmentally responsible way. ... lethal for one species and harmless for a closely ... specific pests without harming beneficial species like bees. A ...
(Date:7/10/2014)... , June 30, 2014  Aware, Inc. (NASDAQ: ... software and services, previously announced on June 26, 2014 ... cash dividend of $1.75 per share, or approximately $40 ... of July 10, 2014 and a payment date of ... NASDAQ that it had set an ex-dividend date for ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3NASDAQ Sets Ex-Dividend Date for Aware, Inc.'s Special Cash Dividend of $1.75 Per Share 2
... A new study has found that the allergenicity of ... fermentation process. Researchers from North Carolina A&T University report ... the American Society for Microbiology. , "Due to the ... cookies, snacks and even soups there is a need ...
... viral-based therapies for cancer , Researchers at Columbia University ... to develop the next generation of effective viral-based therapies ... genetically engineered viruses studied in mice, published today in ... National Academy of Sciences (PNAS), bring us significantly closer ...
... have had an accelerated childhood compared to that of modern ... by researchers from Ohio State University and the University of ... tooth growth present in the Neanderthal fossils they examined was ... , And since the rate of tooth growth has ...
Cached Biology News:Columbia scientists develop cancer terminator viruses 2Columbia scientists develop cancer terminator viruses 3Neanderthal teeth grew no faster than comparable modern humans' 2Neanderthal teeth grew no faster than comparable modern humans' 3
(Date:7/10/2014)... help in the fight against terrorism with the creation ... explosives with the use of light and special glass ... Actuators B: Chemical , the researchers describe a novel ... as low as 6.3 ppm (parts per million). It ... , "Traditionally explosives detection has involved looking for metals ...
(Date:7/10/2014)... been extremely challenging because there are many genetic variants ... disease. Now investigators reporting in the July 3rd issue ... describe a strategy that may help reveal how ... or environmental exposures to affect the development of the ... may predispose individuals to schizophrenia. , The work ...
(Date:7/10/2014)... spiders can sit upside down forever. Nanophysics makes sure of ... an article just published in Physical Review E . ... and spiders that seem to be able to sit still ... for many years. We will soon be able to buy ... gecko,s foot. But the fact is, sooner or later the ...
(Date:7/10/2014)... the two universities and NPL collaborate to bring together ... and their complementary academic strengths., Working with BIS and ... scientific priorities of the UK. The establishment of a ... PhD students, will provide a pipeline of skilled researchers. ... the Laboratory will be grown through the creation of ...
Breaking Biology Technology:Detecting trace amounts of explosives with light 2New strategy could uncover genes at the root of psychiatric illnesses 2Even geckos can lose their grip 2Universities of Surrey and Strathclyde selected as strategic partners in the future operation of the National Physical Laboratory 2Universities of Surrey and Strathclyde selected as strategic partners in the future operation of the National Physical Laboratory 3
... Cancer Society, one in three people will be diagnosed ... an effort to improve patient care and contribute to ... innovative medical imaging technologies that are allowing physicians to ... , ,The latest cancer-fighting advancements from GE include: two ...
... Capital Data, Inc., a provider of business storage ... is now a Sun Microsystems iForce Partner. Earning the ... advanced training in Sun technology by sales and technical ... since 1989, we are delighted to have been selected ...
... Inc. (Nasdaq: TWTI) today announced it delivered a total ... Japan for use in various large scale genotyping projects. , ... its Invader SNP assays to Dr. Yusuke Nakamura, group director ... director of the Genome Center at the University of ...
Cached Biology Technology:GE Medicals Technologies Aid Battle Against Cancer 2GE Medicals Technologies Aid Battle Against Cancer 3
...
... Varian 500-MS LC Ion Trap is ... LC/MS analysis where sensitivity, reliability and ... provides a robust platform for demanding ... resolution, and mass stability reflect the ...
... This modular benchtop fume hood ... allowing safe indoor release of ... most organic contaminants. Configurations are ... flow; options include final HEPA ...
... for biological safety labs (BSL) and ... Class 10/ISO 3) and easy sterilization. ... surfaces that are easy to wipe ... simplify cleaning. Unique double-wall panel design ...
Biology Products: