Sentences with phrase «global ocean circulation models»

To fully understand El Niño, scientists must develop global ocean circulation models that accurately replicate surface currents.

We work with global ocean circulation models to understand issues like the thermal expansion of ocean waters due to global warming or the effect of changing ocean currents on regional sea levels.

These simulations were run using the leading - edge, high - resolution global ocean circulation model, NEMO.

Not exact matches

«Northwest Atlantic Ocean may get warmer, sooner: High resolution global climate model shows much faster warming and changing ocean circulation.&rOcean may get warmer, sooner: High resolution global climate model shows much faster warming and changing ocean circulation.&rocean circulation.»

«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.»

Climate models show the absence of a global atmospheric circulation pattern which bolsters high ocean temperatures key to coral bleaching

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 prGlobal 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 prglobal warming problem.

Its number - crunching capabilities are used to study ship hydrodynamics and air turbulence, to probe industrial combustion turbines to create cleaner engines, and to understand global ocean circulation, as well as for earthquake simulations and aircraft noise - reduction modeling.

The researchers paired MIT's global circulation model — which simulates physical phenomena such as ocean currents, temperatures, and salinity — with an ecosystem model that simulates the behavior of 96 species of phytoplankton.

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

(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).

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

Knowledge of dominant scales associated with mesoscale eddies enables a better understanding of the resolution requirements for the Coupled Model Intercomparison Project, the framework used for comparison of global coupled ocean - atmosphere general circulation models.

This Bern model incorporates non-linear ocean chemistry feedbacks and CO2 fertilization of the terrestrial biosphere, but it omits climate - carbon feedbacks, e.g., assuming static global climate and ocean circulation.

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.

«GCM — General Circulation Model (sometimes Global Climate Model) which includes the physics of the atmosphere and often the ocean, sea ice and land surface as well.»

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

Modelling of the biological system, however, has been more challenging, and it has only been recently that primitive ecosystem models have been incorporated in global general circulation ocean models.

«Development of Global Coupled Ocean - Atmosphere General Circulation Models.»

Although previous studies have offered a general global overview of water circulation between the oceans and land, this traditional two - region model does not take into account the considerable precipitation that occurs over tropical coastal regions, including the Indonesian maritime continent, the Indian subcontinent, and the Bay of Bengal.

Further analyses of long coupled model runs will be critical to resolve the influence of the ocean thermohaline circulation and other natural climate variations on Arctic climate and to determine whether natural climate variability will make the Arctic more or less vulnerable to anthropogenic global warming.»

«The authors write that «the notorious tropical bias problem in climate simulations of global coupled general circulation models manifests itself particularly strongly in the tropical Atlantic,»... they state that «the climate bias problem is still so severe that one of the most basic features of the equatorial Atlantic Ocean — the eastward shoaling thermocline — can not be reproduced by most of the IPCC assessment report models,... as they describe it, «show that the bias in the eastern equatorial Atlantic has a major effect on sea - surface temperature (SST) response to a rapid change in the Atlantic Meridional Overturning Circulation (AMcirculation models manifests itself particularly strongly in the tropical Atlantic,»... they state that «the climate bias problem is still so severe that one of the most basic features of the equatorial Atlantic Ocean — the eastward shoaling thermocline — can not be reproduced by most of the IPCC assessment report models,... as they describe it, «show that the bias in the eastern equatorial Atlantic has a major effect on sea - surface temperature (SST) response to a rapid change in the Atlantic Meridional Overturning Circulation (AMCirculation (AMOC).»

Pfeiffer, M. & Lohmann, G. Greenland ice sheet influence on last interglacial climate: global sensitivity studies performed with an atmosphere — ocean general circulation model.

«The authors write that North Pacific Decadal Variability (NPDV) «is a key component in predictability studies of both regional and global climate change,»... they emphasize that given the links between both the PDO and the NPGO with global climate, the accurate characterization and the degree of predictability of these two modes in coupled climate models is an important «open question in climate dynamics» that needs to be addressed... report that model - derived «temporal and spatial statistics of the North Pacific Ocean modes exhibit significant discrepancies from observations in their twentieth - century climate... conclude that «for implications on future climate change, the coupled climate models show no consensus on projected future changes in frequency of either the first or second leading pattern of North Pacific SST anomalies,» and they say that «the lack of a consensus in changes in either mode also affects confidence in projected changes in the overlying atmospheric circulation.»»

In this document, the term climate models is used for all kinds of models used for studying the global climate system, such as Earth - System Models of Intermediate Complexity (EMICs), Atmosphere - Ocean coupled Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. models is used for all kinds of models used for studying the global climate system, such as Earth - System Models of Intermediate Complexity (EMICs), Atmosphere - Ocean coupled Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. models used for studying the global climate system, such as Earth - System Models of Intermediate Complexity (EMICs), Atmosphere - Ocean coupled Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. global climate system, such as Earth - System Models of Intermediate Complexity (EMICs), Atmosphere - Ocean coupled Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. Models of Intermediate Complexity (EMICs), Atmosphere - Ocean coupled Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. Global Circulation Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. Models (AOGCMs) and Earth System Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. Models (ESMs)(see for the definition of some of these model categories (Meehl and Hibbard 2006; Randall et al. 2007).

Between its Second and Third Assessment Reports, the Intergovernmental Panel on Climate Change elaborated long - term greenhouse gas emissions scenarios, in part to drive global ocean - atmosphere general circulation models, and ultimately to assess the urgency of action to prevent the risk of climatic change.

The response of atmospheric CO2 and climate to the reconstructed variability in solar irradiance and radiative forcing by volcanoes over the last millennium is examined by applying a coupled physical — biogeochemical climate model that includes the Lund - Potsdam - Jena dynamic global vegetation model (LPJ - DGVM) and a simplified analogue of a coupled atmosphere — ocean general circulation model.

Tagged as: Al Gore, AR4, carbon dioxide, climate change, climate disruption, ClimaTweet, CO2, El Nino, externality, Freakonomics, general circulation models, geoengineering, global warming, Intellectual Ventures, IPCC, James Lovelock, Katrina, Ken Caldeira, La Nina, Lowell Wood, modeling, Nathan Myhrvold, Nature, ocean acidification, Pinatubo, policy, sampling theory, SO2, Stephen Dubner, Steven Levitt, sulfur dioxide, superfreakonomics, technology

CAS = Commission for Atmospheric Sciences CMDP = Climate Metrics and Diagnostic Panel CMIP = Coupled Model Intercomparison Project DAOS = Working Group on Data Assimilation and Observing Systems GASS = Global Atmospheric System Studies panel GEWEX = Global Energy and Water Cycle Experiment GLASS = Global Land - Atmosphere System Studies panel GOV = Global Ocean Data Assimilation Experiment (GODAE) Ocean View JWGFVR = Joint Working Group on Forecast Verification Research MJO - TF = Madden - Julian Oscillation Task Force PDEF = Working Group on Predictability, Dynamics and Ensemble Forecasting PPP = Polar Prediction Project QPF = Quantitative precipitation forecast S2S = Subseasonal to Seasonal Prediction Project SPARC = Stratospheric Processes and their Role in Climate TC = Tropical cyclone WCRP = World Climate Research Programme WCRP Grand Science Challenges • Climate Extremes • Clouds, Circulation and Climate Sensitivity • Melting Ice and Global Consequences • Regional Sea - Ice Change and Coastal Impacts • Water Availability WCRP JSC = Joint Scientific Committee WGCM = Working Group on Coupled Modelling WGSIP = Working Group on Subseasonal to Interdecadal Prediction WWRP = World Weather Research Programme YOPP = Year of Polar Prediction

This Bern model incorporates non-linear ocean chemistry feedbacks and CO2 fertilization of the terrestrial biosphere, but it omits climate - carbon feedbacks, e.g., assuming static global climate and ocean circulation.

Seen from this perspective, it comes as no surprise that global models fitted to reproduce global circulation can not reproduce monsoons (land - ocean interactions) and vice versa.

Some examples from energy balance model calculations indicate that: (1) solar variability has a near - global response, with the amplitude of response slightly larger over land; (2) volcanism has a proportionately larger amplitude of response over land than over ocean; and (3) the most oft - cited mode of internal variability, changes in the North Atlantic thermohaline circulation, has a hemispheric asymmetry in response.

However, it remains a major scientific challenge to model and project the changes of the magnitude and intensity of subsurface oxygen depletion because it depends on changes in ocean circulation, rates of de-nitrification, and nutrient runoff from land, and because global data coverage for chemical and biological parameters remains poor.

His current research includes global ocean modeling and data assimilation efforts as part of Estimating the Circulation & Climate of the Ocean (ECCO) consortium, as well as using ensemble methods for regional ocean analysis and predicocean modeling and data assimilation efforts as part of Estimating the Circulation & Climate of the Ocean (ECCO) consortium, as well as using ensemble methods for regional ocean analysis and predicOcean (ECCO) consortium, as well as using ensemble methods for regional ocean analysis and predicocean analysis and prediction.

The estimated GST drop due to fine dust from the actual atmospheric nuclear explosions based on the published simulation results by other researchers (a single column model and Atmosphere - Ocean General Circulation Model) has served to explain the stagnation in global warmodel and Atmosphere - Ocean General Circulation Model) has served to explain the stagnation in global warModel) has served to explain the stagnation in global warming.

One can not develop a useful model of what drives global ocean circulation, he says, without understanding what is happening at the scale of a cubic centimeter.

However, global model projections have coarse resolution, with grid cell sizes of 200 × 200 km or more, reflecting limitations of the ocean GCM component of global coupled climate and ocean circulation — biogeochemical models.

Using global climate model simulations that replicated the ocean basins and landmasses of this period, it appears that changes in ocean circulation due to warming played a key role.

Personally I'd like the climate boffins, or someone, run the global circulation models with no ocean and see what happens.