Upwelling

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Areas of coastal upwelling in red.

Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water. The increased availability in upwelling regions results in high levels of primary productivity and thus fishery production. Approximately 25% of the total global marine fish catches come from five upwellings that occupy only 5% of the total ocean area. Upwellings that are driven by coastal currents or diverging open ocean have the greatest impact on nutrient-enriched waters and global fishery yields.

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Wind Driven Surface Currents: Upwelling and Downwe... Wind Driven Surface Currents: Upwelling and Downwelling oceanmotion.org/html/background/upwelling-and-downwelling.htm - Web

Animation demonstrates the upwelling process. Animation demonstrates the upwelling process. www.classzone.com/.../es2405page01.cfm?chapter_no=visualization - Web

Coastal Upwelling Coastal Upwelling marine.rutgers.edu/coolroom/education/upwelling.htm - Web

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On the influence of large wind farms on the upper ... On the influence of large wind farms on the upper ocean circulation. Göran Broström, Norwegian Meteorological Institute,Oslo, Norway wiki.met.no/_media/windfarms/brostrom_jms_2008.pdf - Web

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