Sentences with phrase «subsurface water currents»

Even as phytoplankton blooms sequester new carbon, the upwelling of deep, subsurface water currents in the region bring old, once - sequestered carbon back to the surface waters, allowing for exchange with the atmosphere.

Not exact matches

These include eastern boundary current upwelling systems such as those off the U.S. west coast along coastal California, Oregon and Washington, deep - sea and subsurface oxygen minimum zones, and coastal waters that are already experiencing excess nutrient levels (eutrophication) and low dissolved oxygen (hypoxia) due to human - driven nutrient pollution from land - based activities.

Let's see — a negative SAM --(http://curriculum.pmartineau.webfactional.com/monitoring-southern-hemisphere-stratospheric-vortex-fluctuations-and-tropospheric-coupling/)-- pushes cold water along the Peruvian Current to the Nino1 +2 zone dissipating the warm surface mixed layer and allowing cold subsurface upwelling.

Then, as the La Nina of 1998/99/00 / 01 progressed, the trade winds, Pacific Equatorial Currents, and a phenomenon known as a Rossby wave returned the remaining surface and subsurface warm water to the western Pacific.