El Niño and La Niña are characterized by having unusually higher or lower ocean temperatures that have important consequences on weather around the world. El Niño is a warm disruption of the ocean atmosphere in the tropical Pacific. While La Niña is unusually cold temperatures in the Equatorial Pacific that inducts irregular temperatures. Both have different consequences that effect our regular atmospheric conditions. El Niño is known to increase precipitation …showed first 75 words of 411 total…

…showed last 75 words of 411 total…associated with colder-than-usual sea surface temperatures in the tropical Pacific) was labeled "La Niña" (or "little girl") as recently as 1985. Despite these descriptions, today the terms are used much wider than that. The “Southern Oscillation” part of the name ENSO comes from Gilbert Walker (a British scientist). In the early 1900’s he dicovered that when atmospheric pressure is low around Austrailia it is high around Tahiti. And vise-versa. This is called the Southern oscillation.