Sentences with phrase «upper ocean circulation»

Not exact matches

«These conditions will cause changes in phytoplankton growth and ocean circulation around Antarctica, with the net effect of transferring nutrients from the upper ocean to the deep ocean,» said lead author J. Keith Moore, UCI professor of Earth system science.

For decades, research on climate variations in the Atlantic has focused almost exclusively on the role of ocean circulation as the main driver, specifically the Atlantic Meridional Overturning Circulation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large concirculation as the main driver, specifically the Atlantic Meridional Overturning Circulation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large conCirculation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large conveyor belt.

A study relating to this — «Our study confirms many changes seen in upper Arctic Ocean circulation in the 1990s were mostly decadal in nature, rather than trends caused by global warming,» said Morison.

~ Our study confirms many changes seen in upper Arctic Ocean circulation in the 1990s were mostly decadal in nature, rather than trends caused by global warming,» / / www.jpl.nasa.gov/news/news.cfm?release=2007-131 [ANDY REVKIN comments: That's precisely what I wrote in the Science Times feature on Arctic ice in September (link is in the post).

... not intended to suggest that the heat capacity exchange / transfer / transport rates used are a realistic representation of actual ocean circulation, although from what little I know, it could be a step in that general direction from using one upper and one deep ocean reservoir.

Thus, some heat gets converted to kinetic energy, but that gets converted back to heat, either by viscosity or by thermally - indirect circulations that produce APE while pulling heat downward in the process (LHSO: Ferrel cell (driven by extratropical storm track activity), Planetary - scale overturning in the stratosphere and mesosphere (includes Brewer - Dobson circulation (I'm not sure if the whole thing is the Brewer - Dobson circulation or if only part of it is)-RRB-, some motions in the ocean; LVO: wind driven mixing of the boundary layer and of the upper ocean (though mixing itself tends to destroy the APE that the kinetic energy would create by forcing heat downward)-RRB-.

It's what drives the atmospheric circulation and the ocean currents that mix the upper warm layers of the ocean with the deeper colder layers, and vice versa.

Warming is widespread over the upper layer of the ocean (500 meters or so), and this may change normal ocean circulation patterns, with unforeseen consequences.

flow in the upper 1,000 meters of ocean driven by global winds N. and S. hemispheres each have two circulations caused by the Coriolis Effect clockwise.

Yet, we explained there is also reasonable basis for concern that a warming world may at least temporarily increase tornado damage including the fact that oceans are now warmer, and regional ocean circulation cycles such as La Nina / El Nino patterns in the Pacific which affect upper atmospheric conditions appear to becoming more chaotic under the influence of climate change.

Thermohaline circulation (THC)- Large - scale circulation in the ocean that transforms low - density upper ocean waters to higher - density intermediate and deep waters and returns those waters back to the upper ocean.

Evidence from the Pacific and the Atlantic suggests that nutrient supply to the upper productive layer of the ocean is declining due to reductions in the Meridional Overturning Circulation and upwelling (McPhaden and Zhang, 2002; Curry and Mauritzen, 2005) and changes in the deposition of wind - borne nutrients.

Slow variations in upper ocean heat content that have been observed in the subpolar and marginal ice zone regions of the Atlantic since the mid-twentieth century are thought to be related to changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC).

The major climate system indices that are operationally used at ICPAC include evolution of monsoons, medium and upper level winds, Madden - Julian Oscillation (MJO), Quasi Biennial Oscillation (QBO), El Niño Southern Oscillation, Indian Ocean dipole (IOD), tropical cyclones, sea surface temperature gradients among many others that have been derived from general circulation.

Published estimates of anthropogenic CO2 now stored in the upper ocean layers and affecting pH has been based on «the assumption that ocean circulation and the biological pump have operated in a steady state since preindustrial times» (Sabine 2010).

Atlantic Meridional Overturning Circulation A major current in the Atlantic Ocean, characterized by a northward flow of warm, salty water in the upper layers of the Atlantic, and a southward flow of colder water in the deep Atlantic.

And they have been used to make a variety of predictions — including for example that with an enhanced greenhouse effect the upper stratosphere will cool while the troposphere warms, that nights will warm more rapidly than days, and more generally the Hadley Cells and dry subtropics will expand, the continental interiors dry out, storm tracks move northward, the tropopause rise, changes in ocean circulation.

The closing of the Central American Seaway intensified the Gulf Stream, the upper limb of a conveyor - like global ocean circulation called the Ocean Convocean circulation called the Ocean ConvOcean Conveyor.

The Ekman upwelling from the wind stress curl associated with these structures plays an important role in ocean circulation theory, as well as in ocean biology from upwelling of nutrients from the deep water into the upper ocean where they can be utilized by phytoplankton.