El nino,La nina

12 Months Sea Surface Temperature Animated Gif

NWS Climate Watch

DIAGNOSTIC DISCUSSION

Climate Prediction Center


ENSO status graph, stages are La Niña WATCH, La Niña ALERT, LA NIÑA, NEUTRAL, El Niño WATCH, El Niño ALERT, EL NIÑO

Australian Government - Bureau of Meteorology

ENSO Wrap-Up

 

La Niña is associated with cooler than normal water temperatures in the Equatorial Pacific Ocean, unlike El Niño which is associated with warmer than normal water.

La Niña (December 2000)
El Niño (December 1997)
El Niño (December 1997) (March 2002)

SST anomalies (°C)
Sea surface temperature anomalies (°C)


        
                                                                         


                 


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NOAA

       
                                
             
        
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Animated globe showing an El NIno event.



From the NOAA/PMEL/TAO website.

Map showing recent winds and temperatures in the tropical Pacific. Click on the map for a larger version. From NOAA/PMEL/TAO website.


Archive of previous ENSO Wrap-Ups

Other Useful Links

The links below can be used to keep track of important developments across the Pacific Basin.

The Weekly Tropical Climate Note issued by the Darwin office of the Bureau of Meteorology discusses the main features of the tropical atmosphere and ocean, including the intra-seasonal oscillation or 30-60 day wave which is thought to sometimes impact on the development of El Niño events.

The Bureau of Meteorology Research Centre (BMRC) has recently developed maps of Out-going Longwave Radiation (OLR), a useful El Niño monitoring tool. Negative anomalies show areas which, in general, have been cloudier (and potentially wetter) than normal.

The TAO / TRITON data display page is excellent for creating your own plots of numerous variables that are relevant to El Niño.

Note however that information coming from other countries is likely to describe timing and impacts relevant to those countries, which will not be the same as those in Australia.


World Meteorological Organization

Current Situation and Outlook 

http://www.wmo.int/pages/members/members_en.html



National Meteorological or Hydrometeorological Services of Members

GOTO 

 http://www.wmo.int/pages/members/members_en.html


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