Sentences with phrase «warm deep currents»

Not exact matches

And a stubborn and long - suffering minority of purists has meanwhile been borrowing from the drifters to prove that Steelhead, which have long been taken on flies in the warm, summer - run streams, can also be taken with them in the winter when they stay deep in the chill current and when insect life is nonexistent.

Some glaciers on the perimeter of West Antarctica are receiving increased heat from deep, warm ocean currents, which melt ice from the grounding line, releasing the brake and causing the glaciers to flow and shed icebergs into the ocean more quickly.

Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's oceans — from the warmest of tropical seas to the deep, dark reaches around hydrothermal vents.

Our global climate models zoom down to finer and finer resolutions; our satellites reveal remote corners of the globe; we increase our understanding of the response of giant ice sheets and deep ocean currents to a warming planet.

El Nino's mass of warm water puts a lid on the normal currents of cold, deep water that typically rise to the surface along the equator and off the coast of Chile and Peru, said Stephanie Uz, ocean scientist at Goddard Space Flight Center in Greenbelt, Maryland.

A March study shows that one large swath of the ice sheet sits on beds as deep as 8,000 feet below sea level and is connected to warming ocean currents.

The shelves slow and stabilize the glaciers behind them, but they are succumbing to a hidden force: Deep, warming ocean currents are melting the ice from beneath.

Deeper water remained unusually warm, especially in the northern part of the California Current.

Arrays monitor circulating currents in the Atlantic Ocean, in which warm shallow waters move north (red), while cold deep waters move south (blue).

The wind changes were found to be heaving warm currents from deeper waters up into a zone where the Antarctic ice sheet is vulnerable to melt and crumble from beneath — the area where towers of ice sit atop submerged ground.

With the removal of the warm surface waters, an upwelling current is created in the east Pacific Ocean, bringing cold water up from deeper levels.

A group of researchers find a new reason for the current hiatus of global warming: the Atlantic Ocean could be keeping things cooler by drawing heat into its deepest fathoms.

This dialogue concluded that... limiting global warming to below 2 °C necessitates a radical transition through deep decarbonization starting now and going forward, not merely a fine tuning of current trends.»

Since deeper waters will be warmer, there is a possible link to the global ocean circulating currents that results in warmer water in polar regions.

The highest rates of thinning are where relatively warm ocean currents can access the base of ice shelves through deep troughs [9,10].

The response to global warming of deep convective clouds is also a substantial source of uncertainty in projections since current models predict different responses of these clouds.

Current studies include the exploration of Arctic deep - sea life under the ice, and the long - term observation of the effects of global warming on polar ecosystems as well as on hypoxic aquatic ecosystems.

Wetsuit, drysuit, backmount, sidemount, singles, doubles, warm water, cold water, slack, current, deep, caves, reef, wreck etc..

The surface water is warm and you dive deeper to catch the cool current.

For Fred Singer, a climatologist at the University of Virginia and another co-author, the current warming «trend is simply part of a natural cycle of climate warming and cooling that has been seen in ice cores, deep sea sediments and stalagmites... and published in hundreds of papers in peer reviewed journals.»

A lot of reseach energy is being devoted to the study of Methane Clathrates — a huge source of greenhouse gases which could be released from the ocean if the thermocline (the buoyant stable layer of warm water which overlies the near - freezing deep ocean) dropped in depth considerably (due to GHG warming), or especially if the deep ocean waters were warmed by very, very extreme changes from the current climate, such that deep water temperatures no longer hovered within 4C of freezing, but warmed to something like 18C.

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.

They relate the current hiatus period at the surface and a deeper penetration of the warming into the ocean with changes in the trade winds on the subtropical Pacific (intensification).

(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?

Conceptually, it's hard to see how the Gulf Stream western boundary current could be weakened by conditions around Greenland; this is a fluid dynamics system, not a mechanical «belt»; a backup due to less deep water formation should have little effect on the physics of the gyre and the formation of the western boundary current, and it also seems the tropical warming and the resulting equator - to - pole heat transport are the drivers — but perhaps modulation by jet stream meandering is playing some role in the cooling?

I recall mention that Katrina was unusual because while crossing the Gulf «Ring Current» the deeper water pulled up by the hurricane was almost as warm as the sea surface, so the deeper water fed almost as much heat energy into the storm as the surface.

It's what drives the atmospheric circulation and the ocean currents that mix the upper warm layers of the ocean with the deeper colder layers, and vice versa.

But as cogently interpreted by the physicist and climate expert Dr. Joseph Romm of the liberal Center for American Progress, «Latif has NOT predicted a cooling trend — or a «decades - long deep freeze» — but rather a short - time span where human - caused warming might be partly offset by ocean cycles, staying at current record levels, but then followed by «accelerated» warming where you catch up to the long - term human - caused trend.

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.

Either a big chunk of ice has been melting extraordinarily fast — which would cool the surrounding air — or somehow ocean currents would have changed in a way that favoured more rapid warming of deep water.

They also found that, consistent with my team's research, about 30 % of overall global warming has gone into the deep oceans below 700 meters due to changing wind patterns and ocean currents.

Most of the deep ocean warming is occurring in the subtropical ocean gyres - vast rotating masses of water in each ocean basin where near - surface currents converge and are forced downward into the ocean interior.

They confirmed that the oceans have warmed substantially, most notably in the deeper layers, and that the strongest warming during this current negative IPO phase has been in the deep of the Southern and Atlantic Oceans.

One of the rationales given by Chen & Tung for dismissing the role of the IPO in deep ocean warming is the expectation that the Pacific Ocean basin should have warmed more during the current (2000 - to present) IPO negative phase.

I'm not for a moment suggesting this makes global warming go away, only it might slow the rate of change down - a bit - in the short term (perhaps the average transit time of deep currents).

Other feedbacks like clouds, (poleward and deep) convection may alter that in positive or negative ways, but that is exactly what the current debate between skeptics and warmers is about.

Warm Atlantic waters that don't enter the Irminger Current, continue deeper into the Arctic, mostly via the Barents Sea.

For example, because the mass balance argument says nothing about absolute numbers or attribution it may be that we are also — for example — destroying carbon - fixing plankton, reducing the breaking of waves and hence mechanical mixing with the upper ocean, releasing methane in the tundra which was previously held by acid rain and which can now be converted to CO2, or it may be we are just seeing a deep current, a tiny bit warmer than usual because of the MWP, heating deep ocean clathrate so that methanophage bacteria can devour it and give off CO2.

It then follows that we * MIGHT * actually be seeing the after effects of the Medieval warm period... Though I've read this wasn't a worldwide phenomena, though, it is likely that ocean current would have circulated the effect, and after 800 years, a localised heating of this type, might have an effect in all the deep ocean areas.

The deep currents interact with a sun warmed surface layer that is a hundred or more metres deep.

Deep ocean currents occasionally push through the warm surface layer in the south eastern Pacific in one of the major areas for upwelling on the planet.

Turbulent deep ocean flows surface and set up wind and current responses that again extend the cold tongue and piles warm surface water up against Australia and Indonesia.

Whether its deep warm ocean currents melting floating ice shelfs or the remnants of a far away tsunami, huge icebergs are a natural result.

If greenhouse warming shut down the globe - girdling current that sweeps heat into the northern North Atlantic Ocean, he fears, much of Eurasia could within years be plunged into a deep chill.

It is the sun and wind and clouds that regulates ENSO, a mechanism that can warm the oceans deeper than surface currents.

The influx could slow down or shut off the North Atlantic Deep Water (NADW) formation, the driving factor behind the conveyor belt current known as thermohaline circulation, which brings large amounts of warm water to the North Atlantic region.

During the warm period, faster currents cause more tropical water to travel to the North Atlantic, warming both the surface and the deep water.

Two items: the first, the layered Ocean currents, fresh water on top, then the warmer but saltier layer and finally the deep bottom layer.

Atlantic Meridional Overturning Circulation A major current in the Atlantic Ocean, characterized by a northward flow of warm, salty water in the upper layers of the Atlantic, and a southward flow of colder water in the deep Atlantic.

47 Warm, shallow current Cold, salty, deep current Fig. 20 - 12, p. 476 Figure 20.12 Natural capital: a connected loop of shallow and deep ocean currents stores CO2 in the deep sea and transports warm and cool water to various parts of the eaWarm, shallow current Cold, salty, deep current Fig. 20 - 12, p. 476 Figure 20.12 Natural capital: a connected loop of shallow and deep ocean currents stores CO2 in the deep sea and transports warm and cool water to various parts of the eawarm and cool water to various parts of the earth.