Sentences with phrase «circulation models also»

Atmosphere - Ocean General Circulation Models also tend to simulate less intense ENSO events, in qualitative agreement with data, although there are large differences in magnitude and proposed mechanisms, and inconsistent responses of the associated teleconnections (Otto - Bliesner, 1999; Liu et al., 2000; Kitoh and Murakami, 2002; Otto - Bliesner et al., 2003).
Some global circulation models also project that mean winter precipitation in the Southwest will decline by up to 10 % [52], but it may take many years to detect effects on stream flows because of precipitation variability [55].

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.
The group also used a general circulation model to predict what might be expected to happen in the world's wine locales in the next 50 years and determined that an average additional warming of two degrees C may occur.
We will also discuss the theory of planetary physical processes (e.g. circulation, dynamics, thermodynamics, radiative transfer, cloud microphysics) and review the current status of the modelling of planetary atmospheres in order to calculate observables such as light curves.
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.
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...
Climate modeling groups have also been experimenting with ways to use the predictability of deeper ocean circulations (where internal variations can persist for up to a decade), but results have been mixed at best.
The factors and caveats that impact all of these different recorders are also widely available in the literature, and more recently isotope - enabled general circulation models have become more widely used in sync with observations (e.g., see Gavin Schmidt and others 2007 paper)
This correction changes the overall salt budget for the Atlantic, also changing the stability of the model's ocean circulation in future climate change.
See also «General Circulation Model (GCM)».
Consequently, when a new model is developed it is often checked whether it can reproduce a «realistic» Atlantic THC [and also other ocean circulations such as around the Antarctic].
The periods considered were mainly the Pleistocene ice age cycles, the LGM and the Pliocene, but Paul Valdes provided some interesting modeling that also included the Oligocene, the Turonian, the Maastrichtian and Eocene, indicating the importance of the base continental configuration, ice sheet position, and ocean circulation for sensitivity.
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.
Given that the answer to this for atmospheric models is a resounding «NO» (particularly because of sub-grid scale processes which need to be effectively pre-ordained through parameterizations), and given that oceanic circulations have much longer adjustment time scales, yet also have much more intense small scale (gyre) circulations than the atmosphere, my instinct is that we are not even close to being able to trust ocean models without long term validation data.
Seasonal weather patterns are also correlated (between models and the real world) to an increasing extent and there is a high degree of correlation between circulation changes based on SST's between the models and the real world.
The factors and caveats that impact all of these different recorders are also widely available in the literature, and more recently isotope - enabled general circulation models have become more widely used in sync with observations (e.g., see Gavin Schmidt and others 2007 paper)
The analysis also follows the advice in the IPCC Good - Practice - Guidance - Paper on using climate model results: the local climate change scenarios should be based on (i) historical change, (ii) process change (e.g. changes in the driving circulation), (iii) global climate change projected by GCMs, and (iv) downscaled projected change.
The improved computer models also began to suggest how such jumps could happen, for example through a change in the circulation of ocean currents.
Climate models also indicate a geographical variation of sea - level rise due to non-uniform distribution of temperature and salinity and changes in ocean circulation.
It is very questionable if the properties of the disturbances observed in nature or simulated by global circulation models can be easily predicted by any of those theories (see also Lee and Mak 1996 or discussion in Chang et al. 2002).
The results also highlight coastal regions that are well - represented in current generation climate models (and those that are not) and the time periods over which coastal sea level may be used as a proxy for the large - scale ocean circulation.
«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.»»
All the General Circulation Models, also known as Global Climate Models (GCM), just set various evaporation and precipitation parameters to achieve approximately the result:
The time - independent linear response to these tropical anomalies is calculated for extratropical basic states taken from reanalysis climatologies and also from the climatological states of Action de Recherche Petite Echelle Grande Echelle (ARPEGE) and Laboratoire de Mà © tà © orologie Dynamique (LMDZ) general circulation model simulations.
They are also used as a boundary condition for atmospheric reanalyses and atmosphere only general circulation models (IPCC 2007).
Also of course, in he case of the Brewer - Dobson Circulation, models and observation has shown it to be affected by GH gas concentrations which of course dictate strongly the total energy being stored in the Earth system at any given time.
R. Gates, «Also of course, in (t) he case of the Brewer - Dobson Circulation, models and observation has shown it to be affected by GH gas concentrations which of course dictate strongly the total energy being stored in the Earth system at any given time.»
The researchers show that models simulating strong LGM sea ice formation also exhibit enhanced stratification and a shallower Atlantic Meridional Overturning Circulation (AMOC), largely consistent with the geological evidence.
Limited understanding of clouds is the major source of uncertainty in climate sensitivity, but it also contributes substantially to persistent biases in modelled circulation systems.
By the way, we also did a paper on millennial - scale solar geoengineering (Cao et al, 2016) showing that, in at least one climate model, solar geoengineering behaves quite well on the 1000 - year time scale with no substantial long term growth in climate change as ocean circulation and such adjusts to the new conditions.
Climate models also take this modulation as input and have demonstrated significant perturbations on tropospheric circulations.
This small ice - cap instability is also found in some atmospheric general circulation models (AGCMs), but it can be largely eliminated by noise due to natural variability (14).
Also, I'll venture this criticism: your early posts on what a General Circulation Model (GCM) is or what a coupled AOGCM model is were short and uninformative to interested laModel (GCM) is or what a coupled AOGCM model is were short and uninformative to interested lamodel is were short and uninformative to interested laymen.
These data are also assimilated into many ocean circulation models.
Also, we have good reason to doubt that the GCMs are capable of predicting any circulation changes, because of the problems they have even modeling the past, exhibit A of which is the big problem of the double ITCZ:
Most of the Model M keyboards still in circulation use a PS / 2 connection, an older standard that isn't available on modern laptops (and also isn't included in many desktop motherboards).
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