[illwrks]

Very nice. I had a quick look at the data source and I wonder if the more recent data is more sensitive/better quality since 2020? There's a clear trend of the oceans getting warmer but recently it seems like there's more and more heat retained.

"CRW's first-generation global monitoring products were operational at NOAA until April 30, 2020, when they were officially retired, and succeeded by CRW's next-generation operational daily monitoring products."

[bkor]

As said by someone else, the temperature of the oceans rose significantly more after the low sulphur regulation went into effect. See https://www.imo.org/en/mediacentre/hottopics/pages/sulphur-2... for the regulation.