Sentences with phrase «atmospheric heat transport»

The cooling impact of this AMOC forced surface heat flux perturbation difference is enhanced by shortwave feedback and diminished by longwave feedback and atmospheric heat transport differences.

Is it atmospheric heat transport?

The Arctic responds strongly through teleconnections controlling the rates of poleward oceanic and atmospheric heat transport.

While there is some influence of differences in forcing patterns among the scenarios, and of effects of oceanic uptake and heat transport in modifying the patterns over time, there is also support for the role of atmospheric heat transport in offsetting such influences (e.g., Boer and Yu, 2003b; Watterson and Dix, 2005).

Zhang and Delworth and Zhang et al. showed by using models that, as the northward surface heat transport by the AMOC is increased, the global atmospheric heat transport decreases in compensation (and vice versa), providing a multidecadal component to the Pacific Decadal Oscillation (PDO).

Even though radiation from the troposphere is much slower, the heat is much more widely distributed; a lot of it is moved over what would have been much cooler ground — it isn't just low level atmospheric heat transport that matters.

They openly acknowledge the importance of the GHG - GHE in establishing the disequilibrium conditions that lead to a lapse rate and atmospheric heat transport in the first place, but then analyze that motion to argue that the overall feedbacks of this process are negative, not positive, something that actually explains the remarkable stability of our atmosphere in the face of internal variability that (in a chaotic system) could easily drive it to catastrophe.

We analyze spatial patterns of precipitation globally associated with forest loss by calculating shifts in the global tropical precipitation band, the Inter-Tropical Convergence Zone (ITCZ), associated with changes in cross-equatorial atmospheric heat transport using equation 2.21 from [33].

Magnusdottir, G., and R. Saravanan, 1999: The response of atmospheric heat transport to zonally - averaged SST trends.

A strengthening ACC created a barrier inhibiting intrusions of warm tropical waters and minimizing both oceanic and atmospheric heat transport resulting in the Refrigerator Effect.

At the very least he needs to provide a pointer to «the calculations of the sensitivity of the mean climate to a doubling of CO2 concentration» that he has found are ignoring changes in non-radiative atmospheric heat transport.

For instance, there is no evidence that, with the current configuration, atmospheric heat transports have vastly different modes of behaviour — and so they are unlikely to suddenly flip into a new state.

If atmospheric heat transported from lower latitudes was the major driver, more warming would be expected at greater heights.

Not exact matches

The complex interactions of atmospheric turbulence and heat transport affect global climate.

Using 19 climate models, a team of researchers led by Professor Minghua Zhang of the School of Marine and Atmospheric Sciences at Stony Brook University, discovered persistent dry and warm biases of simulated climate over the region of the Southern Great Plain in the central U.S. that was caused by poor modeling of atmospheric convective systems — the vertical transport of heat and moisture in the atmosphere.

The temperature gradient creates atmospheric circulation, which transports heat from areas of equatorial excess to the cold polar regions.

For example, in Earth atmospheric circulation (such as Hadley cells) transport heat between the warmer equatorial regions to the cool polar regions and this circulation pattern not only determines the temperature distribution, but also sets which regions on Earth are dry or rainy and how clouds form over the planet.

A continual cycle of heat and moisture is pulled from the tropical ocean and transported around the globe on belts of atmospheric energy.

Direct atmospheric circulation heat transport.

It is still popular nomenclature in physical oceanography and atmospheric dynamics to refer to the bodily transport of energy by a fluid as «heat transport.»

Assuming all other things are equal then I would expect that a shutdown in the THC would lead to more heat transport by the atmospheric circulation as the temperature gradient would be greater.

And no, there is no huge plunge in tropical or global surface air temperatures when the ocean circulation spins up because there is a near - compensating decrease in poleward heat transport via the atmospheric circulation.

RE # 11 The role of hurricanes in the poleward heat transport immediately leads to the question, how is the poleward heat transport divided between atmospheric and oceanic routes?

I hadn't heard about the heat transport via the atmosphere, but it didn't surprise me — that is what the jet streams are all about — a wind caused by an atmospheric temperature differential, given a little bit of a spin.

As the ocean circulation takes up the role of transporting heat poleward the atmospheric circulation spins down.

For example, see The partitioning between atmospheric and oceanic heat transport is not trivial.

Redistribution of heat (such as vertical transport between the surface and the deeper ocean) could cause some surface and atmospheric temperature change that causes some global average warming or cooling.

It seems that predictions are for less oceanic heat transport and more atmospheric (latent / moist) heat transport.

Heat transfer shifts from a ocean transport to atmospheric transport.

Its findings suggest that changing storm patterns and the ensuing droughts are due to a southern shift in the Hadley cell, the large - scale pattern of atmospheric circulation that transports heat from the tropics to the subtropics.

An atmospheric general circulation model coupled to a simple mixed layer ocean was forced with altered implied ocean heat transports during a period of increasing trace gases.

That one was little - noticed by the world's media, but now its findings may receive more attention, as an independent study by NCAR, published yesterday in Nature Climate Change, has investigated the same subject and reaches a confirming conclusion: in recent years atmospheric warming has been delayed due to increased heat transport to the deeper ocean.

One, she says, «clearly and authoritatively describes the complex interactions among ocean dynamics and heat transport, sea ice dynamics forced both by atmospheric winds and ocean currents, and atmospheric thermodynamic forcing in determining recent variations in multi-year sea ice extent.

where latent heat release and net radiation into the atmospheric column, R, balance heat divergence, and the relatively weak contribution from sensible heat transport from the land surface to the atmospheric column has been neglected.

JC comment: This paper clearly and authoritatively describes the complex interactions among ocean dynamics and heat transport, sea ice dynamics forced both by atmospheric winds and ocean currents, and atmospheric thermodynamic forcing in determining recent variations in multi-year sea ice extent.

Unfortunately, there is no detailed instrument record of subsurface changes in Gulf Stream heat transport into the region over the past decades, so it's hard to say — and the atmospheric component?

By the way, here is a somewhat different view of the issue, which points to a more dominant role for atmospheric rather than oceanic heat transport, courtesy Richard Seagar: http://www.ldeo.columbia.edu/res/div/ocp/gs/

For example, the Hadley cell, the large - scale pattern of atmospheric circulation that transports heat from the tropics to the subtropics, has marched south during recent decades, moving the subtropical dry zone (a band that receives little rainfall) along with it.

The identified atmospheric feedbacks including changes in planetary albedo, in water vapour distribution and in meridional latent heat transport are all poorly represented in zonal energy balance model as the one used in [7] whereas they appear to be of primary importance when focusing on ancient greenhouse climates.

The atmospheric and oceanic circulations are vital for heat transport in the climate system.

The evolution of global mean surface temperatures, zonal means and fields of sea surface temperatures, land surface temperatures, precipitation, outgoing longwave radiation, vertically integrated diabatic heating and divergence of atmospheric energy transports, and ocean heat content in the Pacific is documented using correlation and regression analysis.

His research involves studies of the role of the tropics in mid-latitude weather and global heat transport, the moisture budget and its role in global change, the origins of ice ages, seasonal effects in atmospheric transport, stratospheric waves, and the observational determination of climate sensitivity.

Storms help replenish warm water next to the ice, and help carry addtional heat into the melting region via atmospheric transport of warmer moist air.

Here, we have shown that this warming was associated and presumably initiated by a major increase in the westerly to south - westerly wind north of Norway leading to enhanced atmospheric and ocean heat transport from the comparatively warm North Atlantic Current through the passage between northern Norway and Spitsbergen into the Barents Sea.»

I am not saying, for example, that atmospheric dynamics may not play an important role in determining the Earth's heat transport system and hence its relative «warming» or «cooling» rates.

The atmosphere is analogous to a flexible lens that is shaped by the density distribution of the gas molecules, of the atmosphere in the space between the sphere holding them, and space; Incoming heat gets collected in many ways and places,, primarily by intermittent solar radiation gets stored, in vast quantities, and slowly but also a barrage of mass and energy fluxes from all directions; that are slowly transported great distances and to higher altitudes mostly by oceanic and atmospheric mass flows.

El Nino events tend to cause atmospheric warming because they are transporting heat from the ocean back into the atmosphere.

Associated with the warming, there has been an enhanced atmospheric hydrological cycle in the Southern Ocean that results in an increase of the Antarctic sea ice for the past three decades through the reduced upward ocean heat transport and increased snowfall.

The strong poleward atmospheric heat and moisture transport may be one reason why the West Antarctic and Peninsula climate appears to be more strongly coupled with regional sea ice concentration and extent anomalies than does the East Antarctic (e.g. Jacobs and Comiso 1997; Weatherly et al. 1991).

Simpson began with a gray - body calculation, Simpson (1928a); very soon after he reported that this paper was worthless, for the spectral variation must be taken into account, Simpson (1928b); 2 - dimensional model (mapping ten degree squares of latitude and longitude): Simpson (1929a); a pioneer in pointing to latitudinal transport of heat by atmospheric eddies was Defant (1921); for other early energy budget climate models taking latitude into account, not covered here, see Kutzbach (1996), pp. 354 - 59.