MLO and the MEI

In my last post, which was about the Mauna Loa Observatory (MLO) in Hawaii, Dr. Richard Keen and others noted that for a good comparison, there was a need to remove the variations due to El Nino. Dr. Keen said that he uses the Multivariate ENSO Index (MEI) for such removal. And what is the…

Rainfall and El Niño

Guest Post by Willis Eschenbach In a recent post here on WattsUpWithThat, the claim was made that the El Nino influences rainfall. They showed a correlation between various historical proxies and El Nino/La Nina. So I thought I’d take a look at the modern correlation between rainfall and the El Nino. As a measurement of…

Is the 2015/16 El Niño an El Niño Modoki?

AND Is that the Reason Why This El Niño is Not Suppressing the California Drought as Expected? Guest Post by Bob Tisdale El Niño events come in different flavors, and those different flavors can have differing impacts on regional weather around the globe. There are East Pacific El Niño events like the 1997/98 El Niño,…

Has the PDO flipped?

Guest post by David Middleton Cyclical changes in the Pacific Ocean have thrown earth’s surface into what may be an unprecedented warming spurt, following a global warming slowdown that lasted about 15 years. While El Niño is being blamed for an outbreak of floods, storms and unseasonable temperatures across the planet, a much slower-moving cycle…

Weather Two Months From Now

Guest Post by Willis Eschenbach A while back, folks noticed that a couple of months after the El Nino kicked in across the Pacific, the earth would warm up a bit. Since then, people have engaged in what they describe as “removing the El Nino signal” from the global temperature record. A while back I…