Sentences with phrase «coastal upwelling»

The two big surprises to surface recently are acidification and perturbation of coastal upwelling ecosystems.

Sydeman, W. J., et al. (2014), Climate change and wind intensification in coastal upwelling ecosystems, Science, 345 (6192), 77 — 80.

Moreover, we show that a long ‐ term increase in coastal upwelling translates via a bottom ‐ up mechanism to top predators suggesting that the warming climate, at least up to the start of the 21st century, was favorable for fishery productivity in the HCS.

Accordingly, the pH of coastal waters affected by coastal upwelling is expected to decline in the future.

Its turbid cold waters are home to the largest fish stocks in the world: the Humboldt Current system, which runs along the Peruvian and Chilean coasts, boasts exceptional biological productivity thanks to a very intense coastal upwelling phenomenon — ascents of deep nutrient - rich waters.

Average ocean surface pH is expected to drop to about 7.8 off the West Coast by 2050, and could drop further during coastal upwelling periods.

The California Current System (CCS) contains one of the five major coastal upwelling zones in the world's oceans, and hosts a great diversity and abundance of marine life [1].

The wind driven coastal upwellings are a tiny fraction of the ocean surface and volume.

The Benguela current flows north along the west coast of South Africa driven by south - easterly winds forming coastal upwelling.

The Benguela current flows north along the west coast of South Africa driven by south - easterly winds creating coastal upwelling.

«Areas of greatest vulnerability will likely be where deep waters, naturally low in pH, meet acidified surface waters,» such as areas of coastal upwelling along the West Coast and in estuary environments such Hood Canal, the new study predicts.

It could also modify coastal upwellings and the nutrients they deliver.

There was little coastal upwelling on the Pacific coast (of North America at least) and I believe several other oceanographic features mimicked El Nino.

This freshwater creates a lens on the Gulf surface as well as the cooling effects of coastal upwelling due to wind stress.

The most productive coastal upwelling area of the modern ocean is the Benguela upwelling system off south - western Africa, an area that is considered to represent an important modern analogue of petroleum source rocks deposited in the geological past.

«Changes in basal melting are helping to change the properties of Antarctic bottom water, which is one component of the ocean's overturning circulation,» said author Stan Jacobs, an oceanographer at Columbia University's Lamont - Doherty Earth Observatory in Palisades, N.Y. «In some areas it also impacts ecosystems by driving coastal upwelling, which brings up micronutrients like iron that fuel persistent plankton blooms in the summer.»

Collectively, coastal upwelling ecosystems represent only 1 % of the surface waters of the ocean, but they have historically provided 20 % of the fisheries.

The waters probed during this study, known as the California Current, are a hot spot of ocean acidification because of coastal upwelling, which brings naturally acidic waters to the surface, where they are made even more acidic by greenhouse gas pollution.

This is not only because harvesting from relatively shallow waters is easier than in the open ocean, but also because fish are much more abundant near the coastal shelf, due to coastal upwelling and the abundance of nutrients available there.

There are at least five types of upwelling: coastal upwelling, large - scale wind - driven upwelling in the ocean interior, upwelling associated with eddies, topographically - associated upwelling, and broad - diffusive upwelling in the ocean interior.

The ocean as a whole is warming; however, coastal upwelling may ultimately be enhanced by alongshore winds, which strengthen in proportion to the temperature contrast between the oceanic and continental air masses [Sydeman et al., 2014].

The coastal upwelling is a rather stable feature of large scale ocean dynamics.

Since phytoplankton form the base of marine food webs, the world's most productive fisheries are located in areas of coastal upwelling that bring cold nutrient rich waters to the surface (especially in the eastern boundary regions of the subtropical gyres); about half the world's total fish catch comes from upwelling zones.