Sentences with phrase «in ocean circulation models»

Gent, P.R., J. Willebrand, T.J. McDougall, and J.C. McWilliams, 1995: Parameterizing eddy - induced tracer transports in ocean circulation models.

The results provide new information about the significant dispersion patterns currently un-accounted for in ocean circulation models, according to the authors.

Not exact matches

The models did not show as strong a shift as the observations, Frierson said, suggesting that ocean circulation also played a role in the drought.

Greatly improved computer models began to suggest how such jumps could happen, for example through a change in the circulation of ocean currents.

«We ran five years of ocean circulation in the model, and we measured the damping of energy at every grid point to see what the statistics are,» Fox - Kemper said.

The higher resolution model better reflects the ocean circulation and sea floor bathymetry in smaller, complex areas like the Gulf of Maine and the U.S. Northeast Shelf.

«Formation of coastal sea ice in North Pacific drives ocean circulation, climate: New understanding of changes in North Pacific ocean circulation over the past 1.2 million years could lead to better global climate models.»

They used a model of ocean circulation to estimate where the young turtles would be carried from natal beaches in the Atlantic, Mediterranean and Indian oceans.

They were Jorge Sarmiento, an oceanographer at Princeton University who constructs ocean - circulation models that calculate how much atmospheric carbon dioxide eventually goes into the world's oceans; Eileen Claussen, executive director of the Pew Center for Global Climate Change in Washington, D.C.; and David Keith, a physicist with the University of Calgary in Alberta who designs technological solutions to the global warming problem.

New understanding of changes in North Pacific ocean circulation over the past 1.2 million years could lead to better global climate models

Using multiple climate models from around the world, Clement's research team removed the ocean circulation from the analysis to reveal that variations in the Atlantic climate were generally the same.

«This study confirmed that ocean circulation physics and K. brevis biology are equally important and that both immediate and short term prediction may be achieved using a combination of circulation models supported by in situ observations of physical, biological and chemical variables and satellite imagery,» concluded the researchers.

Your statement that «Thus it is natural to look at the real world and see whether there is evidence that it behaves in the same way (and it appears to, since model hindcasts of past changes match observations very well)» seems to indicate that you think there will be no changes in ocean circulation or land use trends, nor any subsequent changes in cloud responses thereto or other atmospheric circulation.

I'd love to know what they did take into account in attempting to model that period — must include astronomical location, sun's behavior, best estimates about a lot of different conditions — where the continents were, what the ocean circulation was doing, whether there had been a recent geological period that laid down a lot of methane hydrates available to be tipped by Pliocene warming into bubbling out rapidly.

Researchers carry out innovative basic and applied research programs in coral reef biology, ecology, and geology; fish biology, ecology, and conservation; shark and billfish ecology; fisheries science; deep - sea organismal biology and ecology; invertebrate and vertebrate genomics, genetics, molecular ecology, and evolution; microbiology; biodiversity; observation and modeling of large - scale ocean circulation, coastal dynamics, and ocean atmosphere coupling; benthic habitat mapping; biodiversity; histology; and calcification.

I would agree that unforeseen changes in ocean circulation could throw off model predictions, there are surely other wildcards too, but uncertainty like that is not your friend if you want to argue against avoiding climate change.

This corresponds in scope (not un-coincidentally) to the atmospheric component of General Circulation Models (GCMs) coupled to (at least) a mixed - layer ocean.

Our general circulation model simulations, which take into account the recently observed widespread occurrence of vertically extended atmospheric brown clouds over the Indian Ocean and Asia3, suggest that atmospheric brown clouds contribute as much as the recent increase in anthropogenic greenhouse gases to regional lower atmospheric warming trends.

It should also be noted that the authors examined whether the large - scale ocean circulation, the Meridional Overturning Circulation (MOC), and two other ocean phenomena - the Pacific Decadal Oscillation (PDO) and Atlantic Meridional Oscillation (AMO)- could explain the warming in the 20th century simulations, but found no evidence in circulation, the Meridional Overturning Circulation (MOC), and two other ocean phenomena - the Pacific Decadal Oscillation (PDO) and Atlantic Meridional Oscillation (AMO)- could explain the warming in the 20th century simulations, but found no evidence in Circulation (MOC), and two other ocean phenomena - the Pacific Decadal Oscillation (PDO) and Atlantic Meridional Oscillation (AMO)- could explain the warming in the 20th century simulations, but found no evidence in the models.

Suppose also that — DESPITE THIS STABILIZING MECHANISM some as - yet unknown ocean circulation cycle operates that is the sole cause of the Holocene centennial scale fluctuations, and that this cycle has reversed and is operating today, yielding a temperature change that happens to mimic what models give in response to radiative forcing changes.

(Top left) Global annual mean radiative influences (W m — 2) of LGM climate change agents, generally feedbacks in glacial - interglacial cycles, but also specified in most Atmosphere - Ocean General Circulation Model (AOGCM) simulations for the LGM.

Broecker's articulation of likely effects of freshwater outbursts in the North Atlantic on ocean circulation and global climate (Broecker, 1990; Broecker et al., 1990) spurred quantitative studies with idealized ocean models (Stocker and Wright, 1991) and global atmosphere — ocean models (Manabe and Stouffer, 1995; Rahmstorf 1995, 1996).

Computer models reveal that exoplanets with very saline oceans could have circulation patterns opposite to that on Earth, resulting in dramatic warming of their polar regions, possibly extending their range of habitability.

A number of recent studies linking changes in the North Atlantic ocean circulation to sea ice extent led Yeager to think that it would also be possible to make decadal predictions for Arctic winter sea ice cover using the NCAR - based Community Earth System Model...

Six, K.D., and E. Maier - Reimer, 1996: Effects of plankton dynamics on seasonal carbon fluxes in an ocean general circulation model.

In an ensemble of fully coupled atmosphere - ocean general circulation model (AOGCM) simulations of the late Paleocene and early Eocene, we identify such a circulation - driven enhanced intermediate - water warming.

Robertson, A.W., 2001: Influence of ocean - atmosphere interaction on the Arctic Oscillation in two general circulation models.

Schiller, A., U. Mikolajewicz, and R. Voss, 1997: The stability of the North Atlantic thermohaline circulation in a coupled ocean - atmosphere general circulation model.

Russell, J.L., R.J. Stouffer, and K.W. Dixon, 2006: Intercomparison of the Southern Ocean circulations in IPCC coupled model control simulations.

Using the adjoint of an ocean general circulation model, I try to understand the local and remote processes that generate temperature anomalies in the Nordic Seas on different timescales and their potential contribution to decadal climate predictability.

Yu, Y., Z. Zhang, and Y. Guo, 2004: Global coupled ocean - atmosphere general circulation models in LASG / IAP.

Delworth, T., S. Manabe, and R.J. Stouffer, 1993: Interdecadal variations of the thermohaline circulation in a coupled ocean - atmosphere model.

In New York, there was last year's New Museum Triennial, «Surround Audience,» whose participants addressed «a society replete with impressions of life, be they visual, written, or constructed through data,» and «Ocean of Images,» the 2015 iteration of MoMA's «New Photography» showcase, featuring artists who use «contemporary photo - based culture, specifically focusing on connectivity, the circulation of images, information networks, and communication models.»

This correction changes the overall salt budget for the Atlantic, also changing the stability of the model's ocean circulation in future climate change.

In this model, enhanced seasonal contrasts through milankovitch forcing (Lourens et al., 2005), combined with a gradually warming late - Paleocene to early Eocene, forced a non-linear response in ocean circulation to warm intermediate waterIn this model, enhanced seasonal contrasts through milankovitch forcing (Lourens et al., 2005), combined with a gradually warming late - Paleocene to early Eocene, forced a non-linear response in ocean circulation to warm intermediate waterin ocean circulation to warm intermediate waters.

There may be reason to strongly suspect that in any sufficiently complicated dynamical system model (such as climate) with stochastic parameters (e.g., exactly when and where a lightning strike starts a major wildfire or a major submarine earthquake perturbs ocean circulation in a region or a major volcanic eruption introduces stratospheric aerosols), it is almost certain that any given run of the model will have periods of significant deviation from the mean of multiple runs.

This corresponds in scope (not un-coincidentally) to the atmospheric component of General Circulation Models (GCMs) coupled to (at least) a mixed - layer ocean.

The best simple answer I've seen is basically that you have to go to a 2 - box model of Earth, with warm tropics and cold poles, and then realize that thanks to the thermohaline circulation the deep oceans are coupled almost exclusively to the polar regions, and so are in the «cold» box and not the warm one or some average of them.

That matters because the trickiest part of global climate models appears to be how they handle ocean - atmosphere interactions, and I really have no idea how well they link changes in local wind - driven upwelling to the net thermohaline circulation.

The output from all the atmosphere - ice - ocean - land coupled general circulation models (GCMs) is hosted in the Lawrence Livermore National Laboratory database.

One needs to contrast the long - term weakening of the Walker circulation (which is robust) with the change in the models» El Nià ± o (which is not robust — there's a series of papers describing this for the current IPCC models: e.g. van Oldenborgh et al 2005 Ocean Sci., Merryfield 2005 J. Clim., Capotondi et al 2005 J. Clim., Guilyard 2005 Clim.

Or is the freshwater flux to the ocean from the melting ice sheet for some reason not represented in the models as a forcing on the circulation?

Suppose also that — DESPITE THIS STABILIZING MECHANISM some as - yet unknown ocean circulation cycle operates that is the sole cause of the Holocene centennial scale fluctuations, and that this cycle has reversed and is operating today, yielding a temperature change that happens to mimic what models give in response to radiative forcing changes.

A vast array of thought has been brought to bear on this problem, beginning with Arrhenius» simple energy balance calculation, continuing through Manabe's one - dimensional radiative - convective models in the 1960's, and culminating in today's comprehensive atmosphere - ocean general circulation models.

Your statement that «Thus it is natural to look at the real world and see whether there is evidence that it behaves in the same way (and it appears to, since model hindcasts of past changes match observations very well)» seems to indicate that you think there will be no changes in ocean circulation or land use trends, nor any subsequent changes in cloud responses thereto or other atmospheric circulation.

«This necessitates the inclusion of biogenic mixing sources in ocean circulation and global climate models.»

The weakening of the Walker circulation arises in these models from processes that are fundamentally different from those of El Nià ± o — and is present in both mixed - layer and full - ocean coupled models, so is not dependent on the models» ability to represent Kelvin waves (by the way, most of the IPCC - AR4 models have sufficient oceanic resolution to represent Kelvin waves and the physics behind them is quite simple — so of all the model deficiencies to focus on this one seems a little odd).

I would agree that unforeseen changes in ocean circulation could throw off model predictions, there are surely other wildcards too, but uncertainty like that is not your friend if you want to argue against avoiding climate change.

This deep ocean warming in the model occurred during negative phases of the Interdecadal Pacific Oscillation (IPO), an index of the mean state of the north and south Pacific Ocean, and was most likely in response to intensification of the wind - driven ocean circulaocean warming in the model occurred during negative phases of the Interdecadal Pacific Oscillation (IPO), an index of the mean state of the north and south Pacific Ocean, and was most likely in response to intensification of the wind - driven ocean circulaOcean, and was most likely in response to intensification of the wind - driven ocean circulaocean circulation.

I clearly see that the change in surface temperature and TOA radiative forcing simulated by the model depends upon the model complexity, for example, how the ocean circulations are represented.