Sentences with phrase «radiative balance model»

The textbook formulae for a simple radiative balance model is:

(4) Halpern et al. do not understand our critique on the abuse of diagrams in the context of simplistic radiative balance models.

Not exact matches

The other two shortlisted missions — which had been whittled down from an original list of over 20 possibilities — were CoReH2O, which sought to model the water balance in glaciers and snow - covered areas, and PREMIER, which aimed to study chemical processes in the upper troposphere and lower stratosphere and the radiative effects of clouds.

However, in view of the fact that cloud feedbacks are the dominant contribution to uncertainty in climate sensitivity, the fact that the energy balance model used by Schmittner et al can not compute changes in cloud radiative forcing is particularly serious.

In the main article you state «the fact that the energy balance model used by Schmittner et al can not compute cloud radiative forcing is particularly serious.»

Nevertheless, the results described here provide key evidence of the reliability of water vapor feedback predicted by current climate models in response to a global perturbation in the radiative energy balance.»

It's something of an abstract concept, but with real world implications, and the universality of such physical models, based on things like radiative balance, atmospheric composition and density, distance from the local Sun, etc., is a very strong argument in favor of general acceptance of the results of climate models and observations on Earth.

Guemas et al. (Nature Climate Change 2013) shows that the slower warming of the last ten years can not be explained by a change in the radiative balance of our Earth, but rather by a change in the heat storage of the oceans, and that this can be at least partially reproduced by climate models, if one accounts for the natural fluctuations associated with El Niño in the initialization of the models.

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.

It matters because of there are other features that affect radiative balance, we need to understand and model them accurately.

Syllabus: Lecture 1: Introduction to Global Atmospheric Modelling Lecture 2: Types of Atmospheric and Climate Models Lecture 3: Energy Balance Models Lecture 4: 1D Radiative - Convective Models Lecture 5: General Circulation Models (GCMs) Lecture 6: Atmospheric Radiation Budget Lecture 7: Dynamics of the Atmosphere Lecture 8: Parametrizations of Subgrid - Scale Physical Processes Lecture 9: Chemistry of the Atmosphere Lecture 10: Basic Methods of Solving Model Equations Lecture 11: Coupled Chemistry - Climate Models (CCMs) Lecture 12: Applications of CCMs: Recent developments of atmospheric dynamics and chemistry Lecture 13: Applications of CCMs: Future Polar Ozone Lecture 14: Applications of CCMs: Impact of Transport Emissions Lecture 15: Towards an Earth System Model

For instance, radiative transfer models (measuring heat balance) are quite well verified, and accurately predict the rise in the temperature (and hence energy) of the atmosphere as the CO2 level increases.

His model of the atmosphere was advanced for the time, but he did consider the radiative balance at the surface, whereas we now consider that this is flawed and the balance at the top of the atmosphere (TOA) is more appropriate.

We perform simulations of future Earth climate by running our baseline model for various (increasing) values of the solar constant until radiative balance is achieved.

3) In the examination of the model for the GHE above, the initial radiation balance, plus the adiabatic - lapse rate, is what has set the structure of the temperature profile; and then the addition of more GHG to the temperature field causes a radiative imbalance that changes the temperature profile until the imbalance goes away.

Detection / attribution assessments, using General Circulation Models (GCMs) or Energy Balance Models (EBMs) with geographical distributions of surface temperature trends, suggest that the solar influence on climate is greater than would be anticipated from radiative forcing estimates.

1) In the estimates made using the energy balance diffusive model, the IPCC assumed a radiative forcing for doubled CO2 of 4 W / m ^ 2 rather than the actual 3.7 W / m ^ 2.

All you folks arguing that the model is valid are doing so by performing accounting on the radiative balance (235 out = 470 out — 235 in, etc.).

And thus, all attempts at carefully accounting for the radiative balance by stating that the shell is twice the area of the planet are nonsensical, because it doesn't have to be twice the area... it could easily be much more without changing the basic premise of the model.

Incorporating new findings on the radiative forcing of black carbon (BC) aerosols, the magnitude of the climate sensitivity, and the strength of the climate / carbon cycle feedbacks into a simple upwelling diffusion / energy balance model similar to the one that was used in the TAR, we find that the range of projected warming for the 1990 - 2100 period is reduced to 1.1 - 2.8 °C.

So, that is what we came up with — A few very simple models, such as the one that involves 3 objects: one object A producing thermal energy and radiating energy at a fixed rate, two other objects B and C whose temperature is determined via radiative balance with object A and empty space, with a geometry such that the temperature of object B is higher than that of object C. And, what we wanted to illustrate is that the object C «warms» B in the colloquial sense of the word... i.e., that the presence of object C causes B to be at a higher temperature than if C is absent.

«Our confidence in our conclusion... is based on the fact that the results of the radiative - convective and heat - balance model studies can be understood in purely physical terms and are verified by the more complex GCM's.

Present global climate models (GCMs) supersede the old simple conceptual models on the greenhouse effect, some of which include radiative - convection and heat balance models discussed over the period 1890 — 1980 (Arrhenius 1896; Hulburt 1931; Charney et al. 1979; Schneider and Dickinson 1974; North 1975; Wang WC and Stone P 1980).

We show that this occurs in spite of a decline in radiative forcing that exceeds the decline in ocean heat uptake — a circumstance that would otherwise be expected to lead to a decline in global temperature when using the simple energy balance model described in the post.

It took me a long time to realise that the Radiative Forcing (RF) that is at the heart of the model calculations is centred on a notional point toward the top of the troposphere... defined by the temperature at which the earth will reradiate the balancing energy — which is -19 C and about 10 km up.

Peter Taylor; It took me a long time to realise that the Radiative Forcing (RF) that is at the heart of the model calculations is centred on a notional point toward the top of the troposphere... defined by the temperature at which the earth will reradiate the balancing energy — which is -19 C and about 10 km up >> >