Melbourne: Australian scientists have developed an innovative method using cores drilled from coral to produce a world first 400-year long seasonal record of El Niño events, a record that many in the field had described ...
Environment
May 6, 2019
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1474
By examining a set of fossil corals that are as much as 7,000 years old, scientists have dramatically expanded the amount of information available on the El Nino-Southern Oscillation, a Pacific Ocean climate cycle that affects ...
Earth Sciences
Jan 3, 2013
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0
(PhysOrg.com) -- El Niño, the periodic eastern Pacific phenomenon credited with shielding the United States and Caribbean from severe hurricane seasons, may be overshadowed by its brother in the central Pacific due to global ...
Earth Sciences
Sep 23, 2009
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0
Reconstructions of past hurricane activity in the Atlantic Ocean indicate that the most active hurricane period in the past was during the "Medieval Climate Anomaly" about a thousand years ago when climate conditions created ...
Earth Sciences
Aug 12, 2009
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0
Something weird is up with La Nina, the natural but potent weather event linked to more drought and wildfires in the western United States and more Atlantic hurricanes. It's becoming the nation's unwanted weather guest and ...
Environment
May 28, 2022
16
677
In a recent study published in Nature Communications, international scientists have taken on a persistent problem in climate science: near-term climate evolution.
Environment
Mar 30, 2022
105
600
A new study shows a correlation between the end of solar cycles and a switch from El Nino to La Nina conditions in the Pacific Ocean, suggesting that solar variability can drive seasonal weather variability on Earth.
Planetary Sciences
Apr 5, 2021
16
8744
2020 has tied 2016 as the hottest year on record, the European Union's climate monitoring service said Friday, keeping Earth on a global warming fast track that could devastate large swathes of humanity.
Environment
Jan 8, 2021
17
284
El Ninos have become more intense in the industrial age, which stands to worsen storms, drought, and coral bleaching in El Nino years. A new study has found compelling evidence in the Pacific Ocean that the stronger El Ninos ...
Earth Sciences
Nov 23, 2019
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4193
Analysis of reef damage in the Indo-Pacific during the 2016 El Nino reveals that several stressors influence bleaching.
Plants & Animals
Oct 1, 2019
0
101
El Niño-Southern Oscillation (abbrieviated as ENSO and commonly called simply El Niño), is an intensification of monthly or seasonal fluctuations in the air pressure difference between Tahiti and Darwin, Australia caused by warming of surface waters of the tropical Eastern Pacific Ocean that occurs every three to eight years. The name is from the Spanish for "the little boy", refers to the Christ child, because the phenomenon is usually noticed around Christmas in the Pacific near South America. A period of cooling in the tropical Pacific is the opposite extreme in the natural ENSO cycle and is called La Niña.
The mechanisms that sustain the El Niño - La Nina cycle remain a matter of research, but El Nino is associated with disruption of Pacific trade winds and a stronger than usual so-called Madden-Julian oscillation, which is the frequent and regularly occurring eastward progression of tropical rainfall over the Pacific.
El Niño is associated with floods, droughts and is linked to other weather disturbances in many locations around the world. El Niño's effects in the Atlantic Ocean lag behind those in the Pacific by 12 to 18 months. Developing countries dependent upon agricultural and fishing are especially affected. But El Niño's effects on weather vary with each event, and ENSO's intensity or frequency may change as a result of global warming. Research suggests that treating ocean warming which occurs in the eastern tropical Pacific separately from that of the central tropical Pacific may help explain some of these variations.
This text uses material from Wikipedia, licensed under CC BY-SA
