Everything about The Sverdrup totally explained
The
sverdrup, named in honour of the pioneering oceanographer
Harald Sverdrup, is a
unit of measure of
volume transport. It is used almost exclusively in
oceanography, to measure the transport of
ocean currents. Its symbol is
Sv. Note that the sverdrup is
not an
SI unit, and that its symbol conflicts with the
sievert's. It is equivalent to 10
6 cubic meters per second (0.001
km³/s, or about 264 million U.S. gallons per second).
Recent studies suggest that the water transport in the
Gulf Stream steadily increases from 30 Sv in the
Florida Current to a maximum of 150 Sv at 55°W
longitude. The entire global input of fresh water from rivers to the ocean is equal to about 1 sverdrup.
The heat carried within this large volume is partially responsible for the mild climate of north-western Europe (atmospheric heat transport is the other cause of Europe's relatively mild climate; it accounts for roughly half of the effect).
To put these numbers in further perspective, the average
bathtub holds about 180 liters (0.180 m
3, 50 U.S. gal). So 1 sverdrup has a flow of about 5 million bathtubs per second and the
Gulf Stream's maximum flow is close to 800 million bathtubs per second.
Further Information
Get more info on 'Sverdrup'.
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