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Topic: La Nina


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In the News (Tue 29 Dec 09)

  
  NOAA/PMEL/TAO - what is La Niña?
La Niña is characterized by unusually cold ocean temperatures in the Equatorial Pacific, compared to El Niño, which is characterized by unusually warm ocean temperatures in the Equatorial Pacific.
El Niño and La Niña are opposite phases of the El Niño-Southern Oscillation (ENSO) cycle, with La Niña sometimes referred to as the cold phase of ENSO and El Niño as the warm phase of ENSO.
In the tropics, ocean temperature variations in La Niña tend to be opposite those of El Niño.
www.pmel.noaa.gov /tao/elnino/la-nina-story.html   (1377 words)

  
  La Niña
La Niña is characterized by unusually cold ocean temperatures in the eastern equatorial Pacific, as compared to El Niño, which is characterized by unusually warm ocean temperatures in the Equatorial Pacific.
La Niña tends to bring nearly opposite effects of El Niño to the United States — wetter than normal conditions across the Pacific Northwest and dryer and warmer than normal conditions across much of the southern tier.
During a La Niña year, winter temperatures are warmer than normal in the Southeast and cooler than normal in the Northwest.
www.fi.edu /fellows/fellow5/feb99/nina/nina.html   (156 words)

  
 Overview of the ENSO system: Basics
La Niña is the counterpart to El Niño and is characterized by cooler than normal SSTs across much of the equatorial eastern and central Pacific.
El Niño and La Niña are both a normal part of the earth's climate and there is recorded evidence of their having occurred for hundreds of years.
Although El Niño and La Niña events are characterized by warmer or cooler than average sea surface temperatures in the tropical Pacific, they are also associated with changes in wind, pressure, and rainfall patterns.
iri.columbia.edu /climate/ENSO/background/basics.html   (910 words)

  
 NASA - La Niña Not Expected to Affect 2006 Atlantic Hurricanes
NASA oceanographers agree that the recent La Niña in the eastern Pacific Ocean is not expected to have an effect on the Atlantic hurricane season this year.
La Niña changes the wind patterns in the upper and lower levels of the atmosphere, which make it easier for hurricanes to form in the Atlantic and harder in the eastern Pacific.
Adamec said that in order for La Niña to have an effect on the Atlantic Ocean hurricane season, it would have to exist for a much longer time, especially into peak hurricane season which is August and September.
www.nasa.gov /vision/earth/lookingatearth/lanina_effect.html   (1058 words)

  
 Realty Times - Real Estate News and Advice
La Niña-based climatic conditions, this spring, rained all over the West with unusually high levels of precipitation while wringing out the southwest, southeast and southern and central plains with drought conditions.
Luckily, La Niña is "not expected to have an effect on the Atlantic hurricane seasons this year," according to oceanographers at the National Aeronautics and Space Administration (NASA).
La Niña is fading, with a return to normal conditions expected during the next few months," Mike Halpert, a NOAA meteorologist told RealtyTimes.com.
realtytimes.com /rtcpages/20060509_laninaout.htm   (816 words)

  
 Argentina - PIANISTAS CLASICOS ARGENTINOS - NINA BLANCO - Argentine Classical Pianists
En al actualidad, es considerada por la crítica especializada como una de las figuras representativas de la música argentina y así lo han expresado en calificadas notas, a partir de las actuaciones realizadas por la prestigiosa artista.
Nina has been especially invited to be a jury member in national and international festivals.
Nina Blanco a joué en soliste avec l’Orchestre Symphonique Nationale d’Argentine, et a fait nombre de tournées sous la baguette d’importants chefs d’orchestre.
www.geocities.com /ninablancopianista   (1564 words)

  
 What is La Nina? From Tampa Bay Online
A La Niña effect may be defined as a drop in average sea-surface temperatures to more than 0.4 degrees C (0.7 degrees F) below normal, lasting at least six months, across a specified part of the eastern tropical Pacific (5 N- 5 S latitude, 120-170 W longitude).
When La Niña forms, the hurricane season is affected as the cooling water creates dramatic changes in the upper-level air currents that play a major role in storm development.
The 1995 and 1996 hurricane seasons, sandwiching the last La Niña, were the most active back-to-back seasons on record, combining for 20 hurricanes, said Christopher Landsea with the Hurricane Research Division of the National Oceanographic and Atmospheric Administration.
hurricane.weathercenter.com /guide/lanina.htm   (1101 words)

  
 El Niño, La Nina, and the Western United States, Alaska and Hawaii FAQ's
La Nina brings dry winters to the Southwest, and there are no exceptions, during the past 65 years.
La Nina generally brings cold, snowy, wet, active winters to the northern Cascades and the northern Rockies.
La Nina winters have much more north-south movement of air masses, and alternations of temperature, particularly in the northern half of the West.
www.wrcc.dri.edu /enso/ensofaq.html   (2690 words)

  
 EO Newsroom: New Images - La Niña In Progress
A La Niña is an occurrence of unusually cold water temperatures in the Pacific Ocean along the Equator (the precise area affected is outlined in fl in the image above).
La Niña and its opposite, El Niño, are linked to seesaw variations in air pressure over the tropical Pacific.
La Niña contributes to drought conditions in the southern and southwestern United States, and heavier-than-usual precipitation in the Pacific northwest and Tennessee Valley area.
earthobservatory.nasa.gov /Newsroom/NewImages/images.php3?img_id=17180   (441 words)

  
 Answers to La Niña Frequently asked questions
La Niña is defined as cooler than normal sea-surface temperatures in the central and eastern tropical Pacific ocean that impact global weather patterns.
El Niño and La Niña result from interaction between the surface of the ocean and the atmosphere in the tropical Pacific.
Typically, a La Niña is preceded by a buildup of cooler-than-normal subsurface waters in the tropical Pacific.
www.elnino.noaa.gov /lanina_new_faq.html   (2224 words)

  
 cbs11tv.com - More Hurricanes Could Result From La Nina
La Nina, a cooling of the mid-Pacific equatorial region, has not officially begun because it's a process with several months with specific temperature thresholds, but the trend is obvious based on satellite and ocean measurement data, he said.
The central plains of the United States tend be drier in the fall during La Ninas, while the Pacific Northwest tends to be wetter in the late fall and early winter.
La Nina winters tend to be warmer than normal in the Southeast and colder than normal in the Northwest.
cbs11tv.com /topstories/topstories_story_059145740.html   (602 words)

  
 NOAA News Online (Story 2572)
La Niña is the periodic cooling of ocean waters in the east-central equatorial Pacific, which can impact the typical alignment of weather patterns around the globe.
La Niña events are operationally defined using the Oceanic Niño Index (ONI), which is the three-month running-mean values of sea surface temperature departures from average in the Niño 3.4 region of the central Pacific (bounded by 5N-5S, 120-170W).
NOAA defines La Niña as the condition whereby the ONI is less than or equal to -0.5 degrees C. This definition was adopted by the U.S. and 25 other countries in North and Central America and the Caribbean in April 2005.
www.noaanews.noaa.gov /stories2006/s2572.htm   (538 words)

  
 NOAA La Niña page
La Niña conditions continue to evolve (July update)
La Niña, El Niño and the Atlantic Hurricane damages in the U.S....from the Atlantic Ocean Marine Laboratory
This site was awarded a Times Pick by the LA Times on 30 July 1998.
www.elnino.noaa.gov /lanina.html   (170 words)

  
 Cyberwest - La Nina arrives
Early detection of El Nino and La Nina might be enhanced through such techniques as monitoring changes in ocean color (caused, for instance, by the growth of phytoplankton blooms) from space.
La Nina (Spanish for "the girl") is a sustained drop in sea-surface temperatures across the central and eastern tropical Pacific.
Typically, a La Nina is preceded by a buildup of cooler-than-normal subsurface waters in the tropical Pacific.
www.cyberwest.com /cw16/16scwst1.html   (1426 words)

  
 La Nina: 2-4 BR beach area condo
La Nina bungalows are available to rent together with the main house for a total of 4 bedrooms and 4 baths, or separately as efficiencies with use of the pool/lawn furniture if the main house is not rented.
La Nina was specifically designed to capture the cool ocean breezes through the windows and doors, and positioned on the lot to stay out of the heat of the day.
Outdoors, La Nina’s lush grounds are brimming with native flora with frequent visits from humming birds and butterflies.
www.cozumel-villas.com /nina.html   (658 words)

  
 NOAA's La Niña Information
La Niña is characterized by unusually cold ocean temperatures in the eastern equatorial Pacific, as compared to El Niño, which is characterized by unusually warm ocean temperatures in the Equatorial Pacific.
La Niñas occurred in 1904, 1908, 1910, 1916, 1924, 1928, 1938, 1950, 1955, 1964, 1970, 1973, 1975, 1988, 1995
La Niña tends to bring nearly opposite effects of El Niño to the United States — wetter than normal conditions across the Pacific Northwest and dryer and warmer than normal conditions across much of the southern tier.
www.publicaffairs.noaa.gov /lanina.html   (313 words)

  
 LASERS: El Niño   (Site not responding. Last check: 2007-09-08)
The meteorological effects related to El Niño and its counterpart, La Niña (a cooling of the eastern tropical Pacific), extend throughout the Pacific Rim to eastern Africa and beyond.
Apparently, as rainfall and cloud cover are reduced during La Niña, the increased solar input heats up the ocean, especially in the deep western-Pacific warm pool.
Using a state-of-the-art General Circulation Model (GCM) in 1992, NCAR was the first to demonstrate the evolution of ENSO-like behavior in a hypothetical atmosphere containing twice the carbon dioxide of the present (a state likely to be reached by the year 2060).
www.ucar.edu /communications/lasers/elnino   (3052 words)

  
 La Nina and the Great Lakes Region   (Site not responding. Last check: 2007-09-08)
La Niña and El Niño are extreme phases of the naturally occurring climate cycle known as El Niño/ Southern Oscillation (ENSO).
It is difficult to predict the effects that La Niña will have on the United States economy since impacts vary from region to region and depend on the strength and timing of the La Niña.
The drought associated with the 1988 La Niña contributed to an estimated 10,000 deaths from heat stress, caused $30 billion in agricultural losses, and produced record forest fires in the United States.
www.glerl.noaa.gov /pubs/brochures/laninaflyer/lanina.html   (687 words)

  
 Mid-Atlantic Weather Station: El Nino Page
La Niña is one of many factors that goes into the summer hurricane forecast.
The last La Niña, in 2000-2001, was weak and short-lived but closely followed a strong La Niña in 1998-2000 that was linked to severe and persistent drought over large areas of the United States.
The 2001 average temperature was second only to 1998 when temperatures rose under the impact of La Nina, the sister phenomenon to El Nino, both of which are caused by abnormal warming of surface water in the Pacific Ocean.
mywebpages.comcast.net /herbwx/elnino.html   (4716 words)

  
 BREITBART.COM - La Nina weather phenomenon is coming: WMO
La Nina, which has the opposite effects to the more notorious El Nino, last occurred from mid-1998 to early 2001.
La Nina usually lasts nine to 12 months, although "some episodes may persist for as long as two years," the US National Oceanic and Atmospheric Administration (NOAA) says on its website.
The buildup of this La Nina was so exceptionally swift and intense that it was impossible at the moment to infer what the impact would be, and how long the phenomenon would last, it warned.
www.breitbart.com /news/2006/03/03/060303193233.kbj9sqm0.html   (471 words)

  
 Untitled Document   (Site not responding. Last check: 2007-09-08)
A classic feature of the transition from an El Niño pattern into a La Niña was seen in the global average surface temperature anomaly for 1998, which was the highest observed in the instrumental record despite maturing La Niña conditions during the latter half of the year.
Although La Niña patterns are generally associated with colder than average surface land temperatures in the global tropics and subtropics over the full period of an event, these temperature conditions may not start to emerge until January, as was the case this year.
This lag between the development of La Niña and the emergence of negative surface land temperature anomalies and teleconnections to higher latitudes is typical.
www.wmo.ch /nino/updat.html   (1751 words)

  
 Nina Ricci : Mode, parfums, accessoires, cosmétiques, produits de luxe.
Nina Ricci : Mode, parfums, accessoires, cosmétiques, produits de luxe.
Nina, le nouveau parfum magique de Nina Ricci, est un véritable conte de fée moderne.
Inspirée de la pomme d'amour, pour séduire et charmer, l'eau de toilette est présentée dans un flacon bijou aux formes rondes et douces.
www.ninaricci.com   (101 words)

  
 Climate Prediction Center - Cold Episodes
These cold episodes, sometimes referred to as La Niña episodes, are characterized by lower than normal pressure over Indonesia and northern Australia and higher than normal pressure over the eastern tropical Pacific.
During cold (La Niña) episodes the normal patterns of tropical precipitation and atmospheric circulation become disrupted.
Since anomaly patterns during cold episodes tend to persist for several months, accurate long-range forecasts (1 to 3 seasons) are possible for the regions shown in the accompanying figures.
www.cpc.ncep.noaa.gov /products/analysis_monitoring/lanina/cold_impacts.shtml   (495 words)

  
 Return of La Nina confirmed - Weather News - MSNBC.com
La Ninas tend to encourage wet weather in the Pacific Northwest and dry conditions in the South, but NOAA forecasters declined to blame current weather on the phenomena.
La Nina is the opposite of the better known El Nino, a Pacific warming.
Because the latest La Nina is only just starting to develop and is expected to be weak, forecasters at the NOAA Climate Prediction Center said it is too early to say how it will affect spring and summer weather.
www.msnbc.msn.com /id/11148372   (386 words)

  
 El Nino | La Nina | Weather Patterns | Forecasts | Effects | Flooding | Storms   (Site not responding. Last check: 2007-09-08)
As if that wasn't bad enough, El Nino was followed by one of the worst La Nina cycles in recent history - the very next year.
La Nina is a weather system that hits the Pacific Ocean between December and March.
La Nina brings harsh winters with drought and abnormally cold temperatures.
www.kidzworld.com /site/p2620.htm   (447 words)

  
 La Niña & El Niño
NOAA says the La Niña Winter of 1999-2000, December through February, was the warmest on record (since 1900) for the United States.
Conversely, La Niña is the cold counterpart of El Niño where sea surface temperatures in the tropical Pacific fall below normal.
This phase is characterized by warm winters in the southeastern United States, colder-than-normal winters from the Pacific Northwest to the Great Lakes, and unsettled winters in the Northeast and Mid-Atlantic states.
www.stormfax.com /lanina.htm   (745 words)

  
 National Geographic Magazine Article: El Nino/La Nina--Part 1
Peru was where it all began, but El Niño’s abnormal effects on the main components of climate—sunshine, temperature, atmospheric pressure, wind, humidity, precipitation, cloud formation, and ocean currents—changed weather patterns across the equatorial Pacific and in turn around the globe.
It is not uncommon for an El Niño winter to be followed by a La Niña one—where climate patterns and worldwide effects are, for the most part, the opposite of those produced by El Niño.
La Niñas have followed El Niños three times in the past 15 years—after the 1982-83 event and after those of 1986-87 and 1995.
www.ngeo.com /elnino/mainpage.html   (1042 words)

  
 El Nino La Nina California Rainfall
The signal for La Nina is less distinct with no significant signal for the northern three climate divisions and a weak to moderate negative signal in the south (Fig.
In these cases all but Northwest and Northeast California (i.e., climate divisions 1 and 3) show a negative anomaly, yet in the strong La Niña cases the Northwest (Climate Division 1) is wet, Southern California (Divisions 6 and 7) are dry and Climate Divisions 2,3, 4 and 5 are neutral.
With the exception of the strongly positive rainfall anomaly in Southern California during strong El Niños the presence of either El Niño or La Niña is not a guarantee of either a significantly wet or dry year in California.
ggweather.com /enso/calenso.htm   (726 words)

  
 CNN.com - La Niña is dying. Or is it? - May 9, 2000
The La Niña weather system follows its more famous brother, El Niño, which is characterized by unusually warm ocean temperatures in the tropical Pacific, like those that hit in 1997.
La Niña is the opposite, featuring a band of cold ocean temperatures.
And then with the effects of La Niña dying out into the second half of the hurricane season," Busalacchi said.
archives.cnn.com /2000/NATURE/05/09/la.nina   (486 words)

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