(I think that
an anomalously warm ocean surface heated from below would lead to more evaporation, and the additional water vapor would give a positive greenhouse effect that would partially offset the effect of a drop in greenhouse gas concentrations.)
Not exact matches
Think of what would happen if you could pump cold deep water up to the
surface, increasing the air / sea temperature gradient and
warming the water; that would give you an
anomalously large
ocean heat uptake.
We also know that while the
ocean surface wasn't
anomalously warm (it was still about 30 °C which is fairly normal for that part of the planet), the water up to at least 100 meters bellow the
surface was 4 — 5 °C (7 — 9 °F)
warmer than average.
During La Nina heat is buried in the subsurface
ocean, whereas during El Nino the
surface layer is
anomalously warm.