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Sverdrup
| Sverdrup | |
|---|---|
 | |
| General information | |
| Unit of | Volumetric flow rate |
| Symbol | Sv |
| Conversions | |
| 1 Sv in ... | ... is equal to ... |
| m3/s | 1 million |
| US gallons/s | 264 million |
| cu ft/s | 35 million |
In oceanography, the sverdrup (symbol: Sv) is a non-SI metric unit of volumetric flow rate, with 1 Sv equal to 1 million cubic metres per second (264,172,052 US gal/s).[1][2] It is equivalent to the SI derived unit cubic hectometer per second (symbol: hm3/s or hm3⋅s−1): 1 Sv is equal to 1 hm3/s. It is used almost exclusively in oceanography to measure the volumetric rate of transport of ocean currents. It is named after Harald Sverdrup.
One sverdrup is about five times what is carried by the world's largest river, the Amazon. In the context of ocean currents, a volume of one million cubic meters may be imagined as a "slice" of ocean with dimensions 1 km × 1 km × 1 m (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 50 km wide, 500 m (0.5 km) deep, and moving at 2 m/s would be transporting 50 Sv of water.
The sverdrup is distinct from the SI sievert unit or the non-SI svedberg unit. All three use the same symbol, but they are not related.
- ^ "Glossary". Ocean Surface Currents. University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science. Retrieved 2019-04-15.
- ^ "Sverdrups & Brine". Ecoworld. Archived from the original on 20 January 2011. Retrieved 12 August 2017.
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