12-month average temperatures since 1950 correlated with El Nino and La Nina events, as well as recent major volcanic eruptions:
Showing posts with label El Nino. Show all posts
Showing posts with label El Nino. Show all posts
12-month, 60-month Global Average Temperatures since 1880
12-month and 60-month running mean global land-ocean average temperatures since 1880 from NASA's Goddard Institute for Space Studies:
Volcanic Eruptions
A chart comparing the strength of global volcanic eruptions (which have a cooling affect) to El Nino events (which have a warming affect) and GISS satellite temperature averages since 1970:
El Nino Effects on Global Temperatures
El Nino events bring warm ocean water to the surface off the west coast of South America, and this has been linked to periodic increases in sea-surface and lower-tropopause temperatures. Here are recent ENSO (El Nino) events graphed along with satellite tropopause temperature data:
The following trend emerges if you remove the ENSO effects from the UAH satellite data:
Other researchers play around with statistics to show that ENSO is responsible for all the recent warming. In this recent graph, you can see the effects of mid-latitude El Ninos and cold La Ninas about every 7 years:
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