Coral tells own tale about El Niño’s past

Rice, Georgia Tech study in Science reveals Pacific temperatures over a millennium Rice University Georgia Tech climate scientist Kim Cobb samples an ancient coral for radiometric dating. She is part of a team of Rice University and Georgia Tech scientists using data from coral fossils to build a record of temperatures in the tropical Pacific…

La Nina may form in the equatorial Pacific Ocean later this year and, if so, it could have wide-ranging ramifications

By Paul Dorian NOAA’s CFS v2 computer forecast model is predicting relatively strong La Nina conditions by later this summer (August/September/October); SST anomalies plot courtesy NOAA *La Nina may form in the equatorial Pacific Ocean later this year and, if so, it could have wide-ranging ramifications* Overview It appears somewhat likely that the current weak…

A Weak El Nino Transitioning to La Nada

Reposted from the Cliff Mass Weather Blog Friday, February 14, 2020 A Weak El Nino Transitioning to La Nada During the past few months we have moved from near neutral conditions (La Nada) to a weak El Nino (warmer than normal temperatures in the central and eastern tropic Pacific)–providing some insights into the weather later…

Curious Correlations

Guest Post by Willis Eschenbach Grrrrr … gotta pull this one. The effect I found was due to the interaction of the El Nino with the seasons. Once I removed that, very different results. When I’m wrong, I’m wrong, no getting around that. Ah, well. I’ll return to this subject of correlations with Nino/Nina, it’s…

The La Nina Pump

Guest Post by Willis Eschenbach Sometimes a chance comment sets off a whole chain of investigation. Somewhere recently, in passing I noted the idea of the slope of the temperature gradient across the Pacific along the Equator. So I decided to take a look at it. Here is the area that I examined. Figure 1.…

MLO and MEI

Guest Post by Willis Eschenbach 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…

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…