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Hot waters

发布时间:2019-03-07 04:15:05来源:未知点击:

HEAT seeping from deep inside Earth affects ocean circulation more than researchers thought. Geothermal heat from deep inside the planet rises to warm the ocean bed. It’s a tiny amount of energy—just 0.05 watts per square metre, compared to the 100 watts per square metre reaching the ocean surface from the Sun—so models of ocean circulation have previously ignored it. Now a computer model shows this small heat flow has a surprisingly large effect on ocean circulation below about one kilometre in depth (Geophysical Research Letters, vol 28,