AJC3 wrote:Thanks. So it looks like the two prior monthly SSTA data that I took from here:
http://www.cpc.ncep.noaa.gov/products/a ... .ascii.txt
...for May and June are fine.
It's just the number I ball parked for July (+1.58C) was too high, since the weeklies are taken from the older dataset. In order to bring the MJJ tercile down from what I arrived at (+1.14C) to the official value +1.02C seen at:
http://www.esrl.noaa.gov/psd/data/correlation/oni.data
...then the actual monthly 3.4 SSTA for July would have had to be somewhere around +1.22C instead of +1.58C. +0.36C is a pretty big difference between datasets.
[+1.02C*3 - (+0.97C + 0.87C)] = +1.22C
The different datasets have had some profound restructuring of some ENSO events notably the El Nino's. 2009 during it's time would've been tracked as a strong Nino then changed borderline and now solidly moderate similar to 2002. Eliminates 1957-58, 1968-69, and 2014-15 as unbroken multi-year events.