Sentences with phrase «deep ocean convection»

This statement is made in a paragraph discussing the deep ocean convection in the Southern Ocean.

Not exact matches

During a postdoctoral fellowship at MIT, Cambridge USA, his research interest focused on the interaction between ocean eddies and deep convection regions and their respective heat and density transports.

Southern Ocean deep convection as a driver of Antarctic warming events, Geophysical Research Letters, 43, p. 2192 - 2199.

(In real life I understand that mixing is the main agent of deeper warming in the ocean due to winds, currents, etc.) Only the top skin of water heats up and therefore lower warming must be by diffusion, or are convection cells within the water inevitable?

Evaporation from the ocean surface both cools and salinifies the ocean surface and thereby bringing about the deep convection.

Consenquently, the associated SST pattern is slightly cooler in the deep convection upwelling regions of the Equitorial Pacific and the Indian Ocean, strongly cooler in the nearest deep convection source region of the South Atlantic near Africa and the Equator, warm over the bulk of the North Atlantic, strongly warmer where the gulf stream loses the largest portion of its heat near 50N 25W, and strongly cooler near 45N 45W, which turns out to be a back - eddy of the Gulf Stream with increased transport of cold water from the north whenever the Gulf Stream is running quickly.

For a rough estimate, downwelling water to the deep ocean in convection zones is about 40 Sv (10 ^ 6 m3 / s), assuming that comes in with say 2 deg C, and leaves (through upwelling, isopycnal and diapycnal diffusion), that is a heat flux of 320 TW, thus at least an order of magnitude larger than the geothermal fluxes.

If we call the deep ocean the bottom 3 km, then, were it not for convection carrying the heat to the surface, the total geothermal heat flux of about 20TW would raise the temperature of the deep ocean by 1K every 4000 years or so.

The vertically integrated inventory of human emitted CO2 in the oceans is (not surprisingly) much greater in areas of cold deep convection, especially in the northern Atlantic (the falling leg of the thermohaline circulation), and much less in the tropics where the ocean is strongly stratified; absorption in the tropics really is more in the near - surface waters.

The idea is that Arctic sea ice decline would expose the ocean to anomalous surface heat and freshwater fluxes, resulting in positive buoyancy anomalies that can propagate downstream to the North Atlantic, in due time suppressing deep convection and weakening the AMOC.

Another factor is convection currents in water allow heat to move into the depths and oceans are very deep.

Too much precip in the Pacific makes the ocean overall fresher and more difficult to initiate deep convection in the ocean.

Martinson, D. G. in Deep Convection and Deep Water Formation in the Oceans (eds Chu, P. C. & Gascard, J. C.) 37 — 52 (Elsevier Oceanography Series, 1991).

The latter determines the intensity of convection in the ocean and the timescale of deep - ocean processes affecting CO2 uptake and storage.

Therefore about 60 % of the «hook profile» must come from convection because the remaining energy makes its way back out of the ocean from deeper.

It says nothing about deep - sea temperatures, although it does reference increased warm water and convection (i.e. tropical cyclones) in the Indian Ocean, which might, in turn, be involved with the 0 - 2000 meter trend in the Indian Ocean mentioned above (originally from Bob Tisdale).

Canuto, V.M., Y. Cheng, and A.M. Howard, 2007: Non-local ocean mixing model and a new plume model for deep convection.

``... among the present generation of global climate models, deep convection is common in the Southern Ocean under pre-industrial conditions, but weakens and ceases under a climate change scenario owing to surface freshening.

[b] Cessation of deep convection in the open Southern Ocean under anthropogenic climate change [/ b]

The study: Cessation of deep convection in the open Southern Ocean under anthropogenic climate change doi: 10.1038 / nclimate2132

The warm water evaporates from the ocean surface, and the light, warm and humid air rises, leading to deep convection in the form of towering cumulonimbus clouds and heavy precipitation.

In that case, persistent deep convection did not occur in the central Pacific, and the usual strong interaction between the atmosphere and the ocean there failed to play its normal role in anchoring the convection and heat transfer.

Within the polynya, large heat loss to the air causes surface water to become cold and sink to the bottom via open - ocean deep convection.

TheWeddell Sea polynya is a large opening in the open - ocean sea ice cover associated with intense deep convection in the ocean.

Without winds or a high vertical diffusivity, the ocean does not support deep convection.