Sentences with phrase «heating deep ocean water»

Not exact matches

This heating ought to be weak, but some unknown process seems to be amplifying it, possibly enough to melt a deep ocean of liquid water on Enceladus, or maybe only enough to form smaller pools of water within the moon's icy shell.

That's in contrast to some recent work that has suggested the Atlantic Ocean is driving the slowdown by burying the missing heat in its deep waters.

It was the Antarctic ice, they argue, that cut off heat exchange at the ocean's surface and forced it into deep water.

Geysers and deep - sea vents are hydrothermal phenomena in which water, heated and pressurized by molten rock, is released through vents at the land surface or into the oceans.

With heat, water and nutrients, subsurface Europa could resemble the deep - sea ocean vents on Earth that support vast ecosystems.

Water takes a lot of energy to heat, and our oceans are very deep, so sunlight only raises the temperature near the surface.

Beyond that, more than 95 percent of the world's methane hydrates exist in deep - ocean settings where it is unlikely water would ever heat up enough to significantly destabilize them.

«Where mid-depth waters from the deep ocean intrude onto the continental shelf and spread towards the coast, they bring heat that causes the glaciers to break up and melt.

Because existing phenomena — such as thermal expansion of water from warming — do not fully explain the corrected sea - level - rise number of 3.3 millimeters, stored heat in the deep ocean may be making a significant contribution, Cazenave said.

Presently the ocean absorbs approximately 25 % of industrial area CO2 emissions, and 93 % of the heat; much of this absorption occurs in deep waters below 200 m (Levin and Le Bris, 2015).

move water masses through the deep ocean — taking nutrients, oxygen, and heat with them.

My theory was we already had observational proof that the heat must be sequestered in the deep ocean waters.

What prevents most of that from evaporating water instead of heating the deeps of the oceans?

And shouldn't the relative T - difference even increase in the future as shallower coastal waters heat up more quickly than deeper ocean water (except probably in upwelling areas)?

That altered ocean currents, strengthening the subtropical sea water circulation thus providing a mechanism to transport heat into the deeper ocean.

It is difficult to establish the exact mechanism for this stronger heat flux to deeper water, given the diverse internal variability in the oceans.

The standard assumption has been that, while heat is transferred rapidly into a relatively thin, well - mixed surface layer of the ocean (averaging about 70 m in depth), the transfer into the deeper waters is so slow that the atmospheric temperature reaches effective equilibrium with the mixed layer in a decade or so.

It seems to us quite possible that the capacity of the deeper oceans to absorb heat has been seriously underestimated, especially that of the intermediate waters of the subtropical gyres lying below the mixed layer and above the main thermocline.

Think of what would happen if you could pump cold deep water up to the surface, increasing the air / sea temperature gradient and warming the water; that would give you an anomalously large ocean heat uptake.

If the correlations were positive, that temperatures matched Scenario B, would you accept skeptics saying, «Sure, but really, Scenario C is more useful», and if the ocean - heat data looked like Lyman (2010), them saying «Sure, but that's only because deeper heat is being transfered to the surface and replaced by cooler waters, but we can't see it»?

The surface heat capacity C (j = 0) was set to the equivalent of a global layer of water 50 m deep (which would be a layer ~ 70 m thick over the oceans) plus 70 % of the atmosphere, the latent heat of vaporization corresponding to a 20 % increase in water vapor per 3 K warming (linearized for current conditions), and a little land surface; expressed as W * yr per m ^ 2 * K (a convenient unit), I got about 7.093.

«Since the ocean component of the climate system has by far the biggest heat capacity», I've been wondering if the cool waters of the deep ocean could be used to mitigate the effects of global warming for a few centuries until we have really depleated our carbon reserves and the system can begin to recover on its own.

This may lead to long term heating and warming cycles in the oceans that are the result of upwheling of cool water from deep within the oceans.

(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?

Presumably, it does take a lot of energy to move that much water faster, with the heat potentially being redistributed into deeper ocean layers associated with perhaps poorly understood fluctuations of the Antarctic convergence at depth?

Even assuming that the dataset is comprehensive: Considering that the upper - ocean cooling is seen mainly at 30N and 30S, another explanation for this cooling is increased ocean — to — atmosphere heat transfer in these regions (possibly aided by hurricane - mixing of the upper ocean layer, and advection of deeper cold water as a result).

It's always worth remembering that the other end of the AMOC involves two main factors: (1) vorticity - mixing of heat from surface waters into the deep abyssal ocean (which decreases density causing the Atlantic Deep Water to start rising above the colder Antarctic Bottom Water) and (2) the wind - driven upwelling around the Antarctic Circumpolar Currdeep abyssal ocean (which decreases density causing the Atlantic Deep Water to start rising above the colder Antarctic Bottom Water) and (2) the wind - driven upwelling around the Antarctic Circumpolar CurrDeep Water to start rising above the colder Antarctic Bottom Water) and (2) the wind - driven upwelling around the Antarctic Circumpolar Current.

Linsley: I think this shows we need to focus some more attention on the places in the northern and southern hemispheres where the deep ocean is talking to the atmosphere and absorbing this heat and I think we need to spend some more time to understand how that water makes its way towards the Equator.

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.

Surface temperature is an imperfect gauge of whether the earth has been warmed by an imbalance between incoming radiation from the sun, and outgoing radiation, because of the role of ocean currents in the distribution of heat between deeper and surface waters.

The total change in ocean heat, including deep water regions is the best gauge of global warming.

Instead, they discuss new ways of playing around with the aerosol judge factor needed to explain why 20th - century warming is about half of the warming expected for increased in GHGs; and then expand their list of fudge factors to include smaller volcanos, stratospheric water vapor (published with no estimate of uncertainty for the predicted change in Ts), transfer of heat to the deeper ocean (where changes in heat content are hard to accurately measure), etc..

While such a «missing heat» explanation for a lack of recent warming [i.e., Trenberth's argument that just can not find it yet] is theoretically possible, I find it rather unsatisfying basing an unwavering belief in eventual catastrophic global warming on a deep - ocean mechanism so weak we can't even measure it [i.e., the coldest deep ocean waters are actually warmer than they should be by thousandths of a degree]...

Water from the faucet represents heat entering the shallow ocean layer, water exiting the drain represents heat leaving the shallow oceans and entering the deep oceans, and the water level in the bathtub represents the heat in the shallow ocean lWater from the faucet represents heat entering the shallow ocean layer, water exiting the drain represents heat leaving the shallow oceans and entering the deep oceans, and the water level in the bathtub represents the heat in the shallow ocean lwater exiting the drain represents heat leaving the shallow oceans and entering the deep oceans, and the water level in the bathtub represents the heat in the shallow ocean lwater level in the bathtub represents the heat in the shallow ocean layer.

Regarding the oceans: If it is not surface heat that is warming deep ocean water, what is?

The land in turn creates warmer rivers which then enter the ocean and follow the bottom out to deep water so for diving buoys that don't come near shore the heat is not observed passing through the open ocean surface.

Aside from continuing to misunderstand that the «missing heat» is about having an inadequate global climate observational network (mainly because we don't have good measurements of deep ocean heat), observational data have demonstrated that water vapor, and likely clouds, are indeed positive feedbacks.

In the North Atlantic Ocean, variations in the ocean circulation affect the heat exchange to the deeper waters of the oOcean, variations in the ocean circulation affect the heat exchange to the deeper waters of the oocean circulation affect the heat exchange to the deeper waters of the oceanocean.

In recent years research tied the Bølling - Allerød warming to the release of heat from warm waters originating from the deep North Atlantic Ocean, possibly triggered by a strengthening of the Atlantic meridional overturning circulation (AMOC) at the time.

If Trenberth's hypothesis is correct then there are mechanisms in the oceans that grab heat from shallower water and deliver it to deeper waters where it is sequestered for long periods of time.

The argument that the oceans ate the extra energy, and this will come back to heat the Earth, is clearly a joke (how could deep ocean water raising a few milli - degrees going to heat the atmosphere several degrees even if it came up?).

Given the vast pool of very cold water in the deep ocean, even modest changes in the rate it exchanges heat with the surface can produce large changes in temperature without any change in the planetary radiative balance.

This includes maintaining Argo, the main system for monitoring ocean heat content, and the development of Deep Argo to monitor the lower half of the ocean; the use of ship - based subsurface ocean temperature monitoring programs; advancements in robotic technologies such as autonomous underwater vehicles to monitor waters adjacent to land (like islands or coastal regions); and further development of real - or near - real - time deep ocean remote sensing methDeep Argo to monitor the lower half of the ocean; the use of ship - based subsurface ocean temperature monitoring programs; advancements in robotic technologies such as autonomous underwater vehicles to monitor waters adjacent to land (like islands or coastal regions); and further development of real - or near - real - time deep ocean remote sensing methdeep ocean remote sensing methods.

Is the ocean sequestering heat deep below where the ARGO buoys measure water temperature?

Um... while the oceans as a whole would have to cool, the sea surface would have to warm up substantially in order to transfer lots of heat to the air (and in order to warm up substantially, I suppose there would have to be reduced circulation with cold deeper waters).

My theory was we already had observational proof that the heat must be sequestered in the deep ocean waters.

In addition, there are a completely unknown number of thermal vents directly warming the bottoms of the oceans, and some lakes, emitting a completely unknown amount of heat into the deep water.

Joe Postma is also wrong in assuming solar radiation can heat the Earth's surface to that extent, especially when 70 % of the surface is a thin (say 1 centimetre deep) surface layer of water which transmits most of the radiation down into the ocean thermoclines.

Francisco (09:12:57): Go ahead and explain how additional heat in the atmosphere moves from the atmosphere to the ocean surface, and from there to the deep oceans, ** without first producing any warming in the atmosphere or on the ocean surface water ** Just because you don't know how it can happen, does not mean that it is not happening, just that you don't understand how.