When a hurricane hits land, the destruction can be visible for years or
even decades. Less obvious, but also powerful, is the effect hurricanes
have on the oceans.
In a new study, we show through real-time measurements that hurricanes
don’t just churn water at the surface. They can also push heat deep into
the ocean in ways that can lock it up for years and ultimately affect
regions far from the storm.
Heat is the key component of this story. It has long been known that
hurricanes gain their energy from warm sea surface temperatures. This
heat helps moist air near the ocean surface rise like a hot air balloon
and form clouds taller than Mount Everest. This is why hurricanes
generally form in tropical regions.
What we discovered is that hurricanes ultimately help warm the ocean,
too, by enhancing its ability to absorb and store heat. And that can
have far-reaching consequences.
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