Sverdrup
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Sverdrup
Sverdrup
Unit ofVolumetric flow rate
SymbolSv 
Conversions
1 million
US gallons/s264 million
35 million

In oceanography, the sverdrup (symbol: Sv) is a non-SI metric unit of flow, with equal to 1 million cubic metres per second (260,000,000 US gal/s);[1][2] it is equivalent to the SI derived unit cubic hectometer per second (symbol: hm3/s or hm3?s-1). It is used almost exclusively in oceanography to measure the volumetric rate of transport of ocean currents. It is named after Harald Sverdrup. It is distinct from the SI unit sievert or the non-SI svedberg, which use the same symbol.

In the context of ocean currents, one million cubic meters per second may be most easily imagined as a "slice" of ocean with dimensions × × (width × length × thickness). At this scale, these units can be more easily compared in terms of width of the current (several km), depth (hundreds of meters), and current speed (as meters per second). Thus, a hypothetical current wide, 500 m (0.5 km) deep, and moving at 2 m/s would be transporting of water.

Examples

The water transport in the Gulf Stream gradually increases from in the Florida Current to a maximum of south of Newfoundland at 55° W longitude.[3]

The Antarctic Circumpolar Current, at approximately , is the largest ocean current.[4]

The entire global input of fresh water from rivers to the ocean is approximately .[5]

References

  1. ^ "Glossary". Ocean Surface Currents. University of Miami Rosenstiel School of Marine and Atmospheric Science. Retrieved .
  2. ^ "Sverdrups & Brine". Ecoworld. Archived from the original on 20 January 2011. Retrieved 2017.
  3. ^ "The Gulf Stream". Ocean Surface Currents. University of Miami Rosenstiel School of Marine and Atmospheric Science. Retrieved 2017.
  4. ^ "The Antarctic Circumpolar Current". Ocean Surface Currents. University of Miami Rosenstiel School of Marine and Atmospheric Science. Retrieved 2017.
  5. ^ Lagerloef, Gary; Schmitt, Raymond; Schanze, Julian; Kao, Hsun-Ying (2010-12-01). "The Ocean and the Global Water Cycle". Oceanography. 23 (4): 82-93. doi:10.5670/oceanog.2010.07.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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