News tagged with el nino
Warm, dry El Nino weather puts baby sea turtle at risk
When leatherback turtle hatchlings dig out of their nests buried in the sandy Playa Grande beach in northwest Costa Rica, they enter a world filled with dangers. This critically endangered species faces threats that include ...
May 23, 2012 |
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Peru says 5,000 birds, nearly 900 dolphins dead
The Peruvian government said Wednesday that 5,000 birds, mostly pelicans, and nearly 900 dolphins have died off the country's northern coast, possibly due to rising temperatures in Pacific waters.
May 09, 2012 |
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Goodbye La Nina: Will drought, hurricanes also go?
(AP) -- The La Nina weather phenomenon is over. Forecasters say that's good news for the drought in the South and hurricane areas along the coasts.
Space & Earth / Earth Sciences
May 03, 2012 |
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Australia drought-free for first time in a decade
Australia said it would be officially drought-free next week for the first time in more than a decade, providing relief for struggling farmers.
Apr 27, 2012 |
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US forecasters see drop in 2012 Atlantic hurricanes
The number of 2012 Atlantic hurricanes will be below average this season due to a cooling of tropical waters and the potential development of El Nino conditions, US forecasters said Wednesday.
Apr 04, 2012 |
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12% of marine species in tropical Eastern Pacific threatened
Twelve percent of marine species surveyed in the Gulf of California, the coasts of Panama and Costa Rica and the five offshore oceanic islands and archipelagos in the tropical eastern Pacific are threatened ...
Feb 24, 2012 |
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Wildfires kill 339,000 people per year: study
Wildfires, peat fires and controlled burns on farming lands kill 339,000 people worldwide each year, said a study released on Saturday that is the first to estimate a death toll for landscape fires.
Feb 19, 2012 |
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La Nina going away, but too late for Texas drought
(AP) -- Federal weather forecasters say the La Nina weather phenomenon that contributed to the southwestern U.S. drought is winding down.
Feb 09, 2012 |
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El Nino, La Nina to become more dominant in New Zealand with climate change
(PhysOrg.com) -- El Niño and La Niña weather patterns will become even more dominant in New Zealand with climate change, according to research from The University of Auckland published in Nature Climate Change.
Space & Earth / Earth Sciences
Feb 08, 2012 |
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2011 a record-breaking year for extreme weather: US
Last year broke records for extreme weather in the United States, with 14 events each causing at least a billion dollars in damage, US authorities said on Thursday.
Jan 19, 2012 |
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Past decade ties for world's hottest: UN agency
Thirteen of the warmest years recorded have occurred within the last decade and a half, the UN's World Meteorological Organisation said on Tuesday.
Nov 29, 2011 |
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La Nina returns, but weaker impact seen: UN weather agency
The UN weather agency said on Thursday that La Nina, a phenomenon linked to flooding and drought, had re-emerged in the tropical Pacific since August but its impact is expected to be weaker this time.
Nov 17, 2011 |
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Sea change can forecast South American wildfires
Tiny temperature changes on the Atlantic and Pacific oceans provide an excellent way to forecast wildfires in South American rainforests, according to UC Irvine and other researchers funded by NASA.
Space & Earth / Earth Sciences
Nov 10, 2011 |
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Antarctic fur seals breed where they were born
Scientists have discovered that female Antarctic fur seals have an uncanny ability to return to within a body length of where they were born when it's time to breed.
Oct 28, 2011 |
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50-million-year-old clam shells provide indications of future of El Nino phenomenon
Earth warming will presumably not lead to a permanent El Niño state in the South Pacific Ocean. This is the conclusion drawn by an international team of researchers after it investigated 50-million-year-old clam shells ...
Space & Earth / Earth Sciences
Sep 19, 2011 |
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El Niño-Southern Oscillation
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.
For more information about El Niño-Southern Oscillation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
