National Oceanic and
Atmospheric Administration
United States Department of Commerce

What's New

This image shows water temperature (in degrees Celsius) at varying ocean depths and wind stress anomalies, averaged over the equatorial Pacific (120E-80W, 2S-2N) from January 2014 - 2016. Red colors represent higher than normal temperatures and longer arrows represent stronger than normal winds. 

May 18, 2016

PMEL climate scientists describe in a recently published paper  the relationship between the 2014-15 failed El Niño and this year’s monster El Niño as well as any similarities between the past strong El Niño’s. They examined changes in sea surface and sub-surface temperatures, winds, and volumes of warm water in the Pacific Ocean from 2014 to 2016.

What they found was that the highly anticipated 2014-15 El Niño event failed due to unusually strong easterly winds in the summer of 2014 which prevented the warm surface water from shifting eastward as seen in a typical El Niño events and left a reservoir of warm water below the ocean’s surface.  This reservoir of warm water combined with strong westerly winds that appeared and continued throughout the spring and summer of 2015 led to the monster El Niño. They found a similar series of events that led to the 1991-92 El Nino event.  

Learn more about El Nino Research and read AGU’s press release on the paper. 

PMEL in the News

May 25, 2016

When the state delayed our local Dungeness crab season last November, San Franciscans were upset. I heard people blame climate change for the toxic algae bloom that poisoned our crabs, but this explanation may be too simple. What really caused the unusual bloom of Pseudo-nitzschia phytoplankton

May 25, 2016

The phenomenon known as El Niño, which combined with human-caused warming to supercharge global temperature in 2015/16 and brought chaotic weather worldwide, is officially on its way out. But stepping quickly into El Niño’s shoes is its cooler counterpart, La Niña.