Sentences with phrase «of oceanic convection»

Not exact matches

Three basic forces are believed to drive oceanic plate movement: plates are «pushed» away from mid-ocean ridges as new sea floor forms; plates are «pulled» as the oldest parts of the plate dive back into the earth at subduction zones; and convection within the asthenosphere helps ferry the plates along.

As global warming affects the earth and ocean, the retreat of the sea ice means there won't be as much cold, dense water, generated through a process known as oceanic convection, created to flow south and feed the Gulf Stream.

This is what happens in our model events pictured above: during cold phases in Greenland, oceanic convection only occurs in latitudes well south of Greenland, but during a DO event convection shifts into the Greenland - Norwegian seas and warm and saline Atlantic waters push northward.

This deep water convection is the engine (pump) of the oceanic thermohaline conveyor circulation.

The mechanism by which the oceanic effect is transferred to the atmosphere involves evaporation, convection, clouds and rainfall the significance of which has to date been almost entirely ignored due to the absence of any relevant figures.

The mechanism by which the effect of oceanic variability over time is transferred to the atmosphere involves evaporation, conduction, convection, clouds and rainfall the significance of which has to date been almost entirely ignored due to the absence of the necessary data especially as regards the effect of cloudiness changes on global albedo and thus the amount of solar energy able to enter the oceans.

Greater understanding of the ocean floor and the discoveries of features like mid-oceanic ridges, geomagnetic anomalies parallel to the mid-oceanic ridges, and the association of island arcs and oceanic trenches occurring together and near the continental margins, suggested convection might indeed be at work.

What such pseudophysical, radiation - only explanations totally miss is differential thermalization of various substances through all the other means of thermal energy transfer: conduction, convection, and — most importantly on a largely oceanic planet — evaporation.

The IPCC summary is deeply flawed as a scientific document and as I have explained in other recent articles it appears impossible for increased levels of atmospheric CO2 at the puny levels caused by mankind to affect the characteristics of the atmosphere enough to significantly enhance the greenhouse effect and even if it could do so then any such effect would be quickly neutralised by the primary solar / oceanic driver and the oceans acting in conjunction with evaporation, condensation and atmospheric convection (which includes clouds and rain).