Navigation Links
El Niño affected by global warming
Date:12/20/2007

The climatic event El Nio, literally the Baby Jesus, was given its name because it generally occurs at Christmas time along the Peruvian coasts. This expression of climatic variability, also called El Nio Southern Oscillation (ENSO), results from a series of interactions between the atmosphere and the tropical ocean. It induces drought in areas that normally receive abundant rain and, conversely, heavy rainfall and floods in usually arid desert zones. Scientists term this phenomenon a quasi-cyclic variation because its periodicity, which varies from 2 to 7 years, shows no regular time pattern. Research conducted over the past 25 years, by oceanographers, climatologists and meteorologists has much improved knowledge on the mechanisms generating an El Nio event. However, possible influence of other systems of climate variability on the ENSO regime is more difficult to fathom. More particularly, it is not known if the intensity and frequency of the event is susceptible to modification in a situation of global warming.

The research work recently published by a team of Chilean and IRD scientists sheds new light on El Nios variability. Several geochemical factors contained in a drill core sediment sampled from 80 m depth under the Bay of Mejillones, in northern Chile, were determined. Analysis of breakdown byproducts from diatoms, unicellular planktonic algae, yielded an accurate trace of this regions trends in sea surface temperature between 1650 and 2000. Data for the period 1820-1878 showed a fall of over 2C. This temperature decrease was also detected in two cores collected near the South-American coasts, over 1000 km to the North and South of Mejillones.

These samplings confirmed that the decrease in ocean temperature observed from 1820 affected the whole Pacific seaboard, from central Chile up to the North of Peru. All the oceanic area situated on the path of the Humboldt current system was therefore the scene of significant cooling during this per
'/>"/>

Contact: Gregory Flechet
fichesactu@paris.ird.fr
33-014-803-7607
Institut de Recherche Pour le Dveloppement
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Global climate change: The impact of El Niño on Galápagos marine iguanas
2. North Americas northernmost lake affected by global warming
3. Global Warming and the Habitability of Planet Earth, Sept. 26
4. Green skies: Engineers work may reduce jet travels role in global warming
5. Scientists in first global study of poison gas in the atmosphere
6. IEEE-USA innovation forum will help prepare US tech leaders to prosper in a global marketplace
7. Majority of Americans want local action on global warming, says poll
8. International team of scientists warns of climate changes impact on global river flow
9. Changing the global dietary environment
10. Global deal fuels QUTs world-changing research
11. NIH hosts event to launch Council of Science Editors global theme issue
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... in German . ... with the help of sophisticated assembly lines. Mobile assembly carriers, ... part of these assembly lines. In the case of a ... stages arranged in a precise spatial and chronological sequence, resulting ... , The creation of such an assembly line at molecular ...
(Date:8/28/2014)... to alert the world to Global Warming, has called ... stored underground. He says that Carbon Capture, combined with ... to avoid global warming getting out of control over ... York) made the call during his presentation to the ... are meeting to discuss Carbon Capture and Storage. ...
(Date:8/28/2014)... action is needed to ensure safeguards are in place ... PLOS ONE , researchers from Monash University, Stellenbosch ... combining results from different studies - to look at ... to determine whether they actually protect biodiversity. , ... an area from human exploitation made common sense, however, ...
Breaking Biology News(10 mins):Nanoscale assembly line 2Nanoscale assembly line 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2Protected areas proven to protect biodiversity 2
... can significantly improve blood markers of cardiovascular health in ... of Human Hypertension . The researchers measured ... remodeling of arteries that normally occur after tissue damage, ... levels of two of these markers dropped significantly in ...
... Colo., USA GEOLOGY ends 2012 with ... and locations, including Mercury; Naica Cave, Mexico; Diamantina, Brazil; ... Bay and Uummannaq Fjord, central West Greenland; the California ... Torfajkull, Iceland; the U.S. Sierra Nevada; Spain; New Zealand; ...
... Worcester, Mass. In the worldwide battle to curtail ... of the developing world, drug after drug has fallen by ... it. Only artemisinin, derived from the sweet wormwood plant, ... is expensive to produce (particularly when combined with other antimalarial ...
Cached Biology News:Strength training improves vascular function in young black men 2Strength training improves vascular function in young black men 3GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 2GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 3GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 4GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 5GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 6GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 7GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 8GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 9GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 10GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 11GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 12GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 13GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 14GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 15GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 16GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 17GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 18GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 19GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury 20New whole plant therapy shows promise as an effective and economical treatment for malaria 2New whole plant therapy shows promise as an effective and economical treatment for malaria 3New whole plant therapy shows promise as an effective and economical treatment for malaria 4
(Date:8/29/2014)... (PRWEB) August 29, 2014 Intrinsic ... 13485:2003 certified, GAMP® 5 compliant imaging core lab, ... international Phase II clinical trial to assess a ... Throughout this trial, Intrinsic Imaging will provide comprehensive ... to, protocol and charter development, site qualification, site ...
(Date:8/28/2014)... research platform uses a laser to measure ... stress and heating, an approach likely to ... and batteries., This new technique, called nanomechanical ... and the surface stress of microscale structures ... the merits of surface-stress influence on mechanical ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
(Date:8/28/2014)... August 28, 2014 A new ... the world is available from Strategic Consulting, Inc., ... “ Industrial Microbiology Market Review, Fourth Edition: Global ... ” (IMMR—4) tracks and compares microbiology test volumes, ... America, Europe and Asia, and forecasts future volumes ...
Breaking Biology Technology:Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 32 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3
... SAN DIEGO and INDIANAPOLIS, Oct. 19,  2011 ... and Eli Lilly and Company (NYSE: LLY ) ... has approved a new use for BYETTA® (exenatide) injection. BYETTA ... with or without metformin and/or a thiazolidinedione (TZD), in conjunction ...
... Process automation specialist Endress+Hauser has acquired a stake in ... distributes sensors, hardware and software for bioprocess engineering. ... the area of biotechnology through this cooperation. "Biotechnological procedures ... not only in the life sciences industry but also ...
... Building on earlier work showing how nanowires carved ... photons, researchers have developed a scalable manufacturing process ... enable even greater photon control. The development ... by setting the stage for diamond-based microchips. ...
Cached Biology Technology:BYETTA® Approved for Use with Insulin Glargine in the U.S. 2BYETTA® Approved for Use with Insulin Glargine in the U.S. 3BYETTA® Approved for Use with Insulin Glargine in the U.S. 4BYETTA® Approved for Use with Insulin Glargine in the U.S. 5BYETTA® Approved for Use with Insulin Glargine in the U.S. 6BYETTA® Approved for Use with Insulin Glargine in the U.S. 7BYETTA® Approved for Use with Insulin Glargine in the U.S. 8Endress+Hauser and Finesse Solutions Form Strategic Partnership - Swiss Process Automation Provider Invests in US Biotech Company 2Endress+Hauser and Finesse Solutions Form Strategic Partnership - Swiss Process Automation Provider Invests in US Biotech Company 3Diamonds, silver and the quest for single photons 2Diamonds, silver and the quest for single photons 3
These 25x25 square No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick. • Approx. Pcs Oz : 102...
... Life Science FLA-8000 Fluorescent Image Analyzer features ... single laser imaging system. This powerful new ... with fluorescent dyes or radioisotopes at resolutions ... laboratories. Speed, image quality and flexibility make ...
...
The model 55D Rocking Shaker provides the same Reliable quality as the 55S, but double the value. The 55D gives you an additional platform with a height of 3.25 in....
Biology Products: