Not completely sure but probably oceanic surface from the lack of clouds. The other effect is the removal of water vapor from the upper troposphere reducing the atmospheric warming.
I probably didn't quite get your point. I asked because hurricane winds do cool the surface ocean due to mixing. There was an event a couple of years ago when one hurricane hit the cooler "wake" of a previous hurricane and lost significant strength over the cooler waters. But I think your point was about something else.
Here's a man-made cloud from an ocean ship's smokestack, which cools the ocean surface. Man-made clouds are likely the key to managing the climate. The extra freshwater will encourage plant growth increasing CO2 consumption.