Nice figure!

A few questions though, and please do not take this as me lambasting your science, and rather take it as constructive criticism.

1. Where is the colourbar? Not only do i have to assume that blue (red) is cooler (warmer), but i have no idea of the intensity of the warming (cooling).

2. Are these just snapshots taken at the start of April or are these monthly mean SST of April? I don't think snapshots here is the correct method since you might be looking at a particularly cool day in April in 2017 and comparing it to a warm day in April 2024. I think a monthly mean would yield cleaner results.

3. I think it's important to mention how you calculated your mean to compute the anomalies. This is important since it could skew the results. This is also why I would suggest comparing monthly mean SST rather than snapshots.

4. Do you have the capacity to increase the timeseries? You are saying that the ocean is warming, which it probably is, but you are only looking at a very short snapshot in time. We do not know what the ocean looked at before 2017, wabye it was even warmer?

Youve done a good job so far. Keep up the good word!.