I follow this forum but don’t post much, but I had a question about the relevance of standard metrics for this Niño.
With this ninobeing so east-based, isn’t it likely that the traditional measure of strength (the 3.4 anomaly) significantly underestimates the impact on the atmosphere?
Just from an anomaly × surface area perspective, I think the 3.4 region is typically closer to where the greatest anomalies are. Now it’s not even close....the eastern regions are almost 2 degrees more anomalous.
Are there alternative measures, perhaps ones that integrate the anomaly over the full area across all ENSO regions? And do those correlate better with atmospheric impacts?