Sentences with phrase «deep ocean reservoir»

The size of the deep ocean reservoir is big enough that it could buy us a few decades.

BUT ONLY IF the deep ocean reservoir is currently in active CO2 exchange with the atmosphere at meaningful rates.

... 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.

My question is, what is the average time for the excess atmospheric CO2 produced by burning fossil fuels to mix into the deep ocean reservoir.

Not exact matches

These results provide new insights into the role that the deep ocean plays as a storage reservoir for carbon, a process that helps to dampen the effects of human - driven climate change.

Ray Ladbury wrote at 27 «However, there is also a huge reservoir of cold water in the deep oceans.

The oceans are not a single reservoir for CO2, but a combination of near surface waters and deeper layers.

They will be mixed back into the huge reservoir of the deep ocean, or even absorbed into the lithosphere at the deep ocean rifts.

However, there is also a huge reservoir of cold water in the deep oceans.

Setting aside the effects of the deep ocean, etc, — ie just using a single unified reservoir's heat capacity — and using only fast feedbacks (I didn't introduce any slow feedbacks anywhere in this particular series of comments), the expectation based on physics is that each delayed response T curve (each of which must correspond to a different value of heat capacity, for the same ECS) must have a maximum or minimum when it intersects the instantaneous response curve (my Teq value)-- maximum if it was below Teq before, minimum if it was above — because it is always going toward Teq.

* the carbon reservoir in the deep ocean is so large that we could sequester CO2 there without affecting the overall acidity of the deep ocean.

Re Chris Korda --(last part of my third - to - last comment)-- it will be much easier if the deep ocean temperature (or multiple such thermal reservoirs) is explicitly computed iteratively.

IF cool deep sea water were mixed relentlessly with surface water by some engineering method --(e.g. lots of wave operated pumps and 800m pipes) could that enouromous cool reservoir of water a) mitigate the thermal expansion of the oceans because of the differential in thermal expansion of cold and warm water, and b) cool the atmosphere enough to reduce the other wise expected effects of global warming?

Therefore the flux of CO2 must be into the other reservoirs (principally the biosphere and the deep ocean).

A key uncertainty Pekka mentions is the exchange rate between the upper ocean and the immense CO2 reservoir of the deep ocean.

If the heat actually remains within the earth system in the deeper ocean, for example, while the heat content of the remainder of the heat reservoirs in the earth system remains unchanged,...

The current total of 300 GtC human emissions adds less than 1 % to the carbon reservoir in the deep oceans, and ultimately that is all what returns if everything is back in equilibrium.

Using a single time constant when there are clearly multiple reservoirs (ocean well mixed surface and deeper ocean just for two in addition to the atmosphere) with different time constants, not to mention unknown sinks, makes your model seriously oversimplified.

As more accessible reservoirs are emptied, energy companies exploit the remotest parts of the planet, bribing and bullying governments to allow them to break open unexploited places: from the deep ocean to the melting Arctic.

55 Fig. 20 - 15, p. 482 Tree plantation Coal power plant Tanker delivers CO2 from plant to rig Oil rig CO2 is pumped down from rig for deep ocean disposal Spent oil reservoir is used for CO 2 deposit Abandoned oil field Crop field Spent oil reservoir is used for Crop field Switchgrass = CO2 deposit = CO2 pumping CO 2 deposit CO2 is pumped down to reservoir through abandoned oil field

http://www.pnas.org/content/106/43/18045.full About a decade ago, Canfield (1) offered a very different possibility — that ventilation of the deep ocean lagged behind the GOE by more than a billion years, resulting in a vast, deep reservoir of hydrogen sulfide, but long - held presumptions about photosynthetic life in the surface waters remained untouched.

Subsequently, the carbon continues to be moved between the different reservoirs of the global carbon cycle, such as soils, the deeper ocean and rocks.

QUOTE: «The human fraction in the atmosphere (FA) immediately increases to 14 % but that is rapidly reduced by the residence time which replaces the original «human» CO2 molecules by «natural» CO2 molecules from other reservoirs, mainly the (deep) oceans.

59 down from rig for deep ocean disposal Abandoned oil field Crop field Spent oil reservoir is used for Crop field Tanker delivers CO2 from plant to rig Coal power plant Oil rig Tree plantation CO2 is pumped down from rig for deep ocean disposal Abandoned oil field Crop field Switchgrass CO2 deposit CO2 is pumped down to reservoir through abandoned oil field Figure 20.15 Solutions: methods for removing carbon dioxide from the atmosphere or from smokestacks and storing (sequestering) it in plants, soil, deep underground reservoirs, and the deep ocean.

Solutions: methods for removing carbon dioxide from the atmosphere or from smokestacks and storing (sequestering) it in plants, soil, deep underground reservoirs, and the deep ocean.

As I recall, you (Pekka) had also mentioned the exchange rate between the upper ocean and the immense CO2 reservoir of the deep ocean.

The argument that this change it is somehow driven by energy reservoirs in the deep ocean is clearly flawed: the deep ocean would be * cooling * as it lost energy to the upper ocean, but deep ocean heat content is increasing at the same time as OHC in the upper ocean is increasing.

Exhibit A: ================ The concentration of radiocarbon, 14C, in the atmosphere depends on its production rate by cosmic rays, and on the intensity of carbon exchange between the atmosphere and other reservoirs, for example the deep oceans.

The internally imposed structural changes to the climate system include the injection of the non-condensing greenhouse gases (CO2, CH4, N2O, CFCs, etc), volcanic and anthropogenic aerosols, and episodic contact to the deep ocean cold temperature reservoir (this is responsible for the «natural», «internally forced», or «unforced» variability of the climate system).

(This behavior is, I think, associated with a relatively rapid cycling and equilibration between the atmophere and upper ocean, a slower equilibration with vegetation, and a slower equilibration with the deep ocean (and there's equilibration with exposed carbonates); equilibration with each successive C reservoir still leaves some of the atmospheric perturbation because the C is just being redistributed over a larger total reservoir (PS not necessarily maintaining the same equilibrium ratios, though I don't know about that much offhand).

There are five reservoirs of carbon that are biologically accessible on a short time - scale, not counting the carbonate rocks and the deep ocean which are only accessible on a time - scale of thousands of years.

The deep oceans have by far the greatest carbon reservoir, so a «plausibility argument» could go along the lines of: the upper ocean will absorb extra CO2 and then pass it to the deep ocean.