The deep circulation that
drives warm surface waters north is weakening, leading to a cooling of the north Atlantic relative to the rest of the oceans.
This system involves the sinking of cold saline waters in the subpolar regions of the oceans, an action that helps to
drive warmer surface waters poleward from the subtropics.
Not exact matches
Driven by stronger winds resulting from climate change, ocean
waters in the Southern Ocean are mixing more powerfully, so that relatively
warm deep
water rises to the
surface and eats away at the underside of the ice.
So, for example, a big part of what
drives a hurricane is the fact that you've got a lot of
warm water near the
surface of the ocean that is transferring heat into the air, and that's what's moving up, and that is a big part of then what's propelling the entire bigger storm system.
The technology involves heating
warm surface water to produce steam that
drives a turbine generator.
The prevailing
surface winds over the tropical Pacific blow from east - to - west (easterlies), and tend
drive a
surface current, pushing (advecting) the
warm surface water westward.
The prevailing
surface winds over the tropical Pacific blow from east - to - west (easterlies), and tend
drive a
surface current, pushing (advecting) the
warm surface water westward.
East Coast winter storms, known as «nor» easters» because of the unusual northeasterly direction of the winds as the storm spirals in from the south, are unusual in that they derive their energy not just from large contrasts in temperature that
drive most extratropical storm systems, but also from the energy released when
water evaporates from the (relatively
warm) ocean
surface into the atmosphere.
The main mechanism for wind -
driven mixing into the deep ocean (down to around 2000 metres) is via convergence of
warm tropical
surface water in the subtropical ocean gyres.
The Atlantic Meridional Overturning Circulation (AMOC)- the transport of
warm tropical
surface water northward - is indeed propelled by dense
water sinking in the North Atlantic and travelling equatorward in the deeper layers, but it also has a wind -
driven component to it.
A lot of the post 1995
surface warming is AMO
driven, which includes continental interior regions drying out, and probably the upper troposphere and lower stratosphere declines in
water vapour since 1995.
Since the whole world does not appear to freeze during a ice age, the must be massive ice making going at the pole
driven by heat lifting oceans of
water to the sky from the equator where it is pushed by the expanding air and vapor to the poles areas where it returns to the
surface and follows cold land like a culvert between
warmer expanding ocean air back down to the equatoral region.
The particularly rapid sea ice loss from 1997 to 2007 was related to extreme ocean conditions that
drove a sustained
warming of the
surface waters throughout the subpolar Atlantic and Nordic Seas.
Warmer surface waters in the eastern Pacific
drive away the coldwater fish that are the backbone of the fishing industry in much of Latin America.
If the
warm water heated by the sun is
driven by the wind into the deeper layers, and also bringing colder deep
waters to the
surface, the
surface stays cool, the heat is transferred down, and La Nina works its cooling magic on the globe.
Mixing of cold, nutrient rich, sub-
surface water with
warm surface water creates the wind and current feedbacks
drive the cold tongue across the Pacific.
It is apparently
driven by the acceleration and slowing of the great ocean conveyor that carries
warm surface water into the northern North Atlantic (Science, 1 July 2005, p. 41).