Sentences with phrase «equilibrium global climate sensitivity»

Global temperature change is about half that in Antarctica, so this equilibrium global climate sensitivity is 1.5 C (Wm ^ -2) ^ -1, double the fast - feedback (Charney) sensitivity.

The total surface and atmospheric forcings led Hansen et al. (1993) to infer an equilibrium global climate sensitivity of 3 + / - 1C for doubled CO2 forcing, equivalent to 3/4 + / - 1/4 CW ^ -1 m ^ -2.

Not exact matches

The «equilibrium» sensitivity of the global surface temperature to solar irradiance variations, which is calculated simply by dividing the absolute temperature on the earth's surface (288K) by the solar constant (1365Wm - 2), is based on the assumption that the climate response is linear in the whole temperature band starting at the zero point.

One common measure of climate sensitivity is the amount by which global mean surface temperature would change once the system has settled into a new equilibrium following a doubling of the pre-industrial CO2 concentration.

Climate sensitivity is a measure of the equilibrium global surface air temperature change for a particular forcing.

Beyond equilibrium climate sensitivity -LSB-...] Newer metrics relating global warming directly to the total emitted CO2 show that in order to keep warming to within 2 °C, future CO2 emissions have to remain strongly limited, irrespective of climate sensitivity being at the high or low end.»

The real «equilibrium climate sensitivity,» which is the amount of global warming to be expected for a doubling of atmospheric CO2, is likely to be about 1 °C, some three times smaller than most models assumed.

Here's an interesting paper that is referenced in some of the listed publications: Meraner et al. 2013, Robust increase in equilibrium climate sensitivity under global warming, GRL https://hal.inria.fr/hal-01099395/document

There have been quite a number of papers published in recent years concerning «emergent constraints» on equilibrium climate sensitivity (ECS) in comprehensive global climate models (GCMs), of both the current (CMIP5) and previous (CMIP3) generations.

First let's define the «equilibrium climate sensitivity» as the «equilibrium change in global mean surface temperature following a doubling of the atmospheric (equivalent) CO2 concentration.

Climate sensitivity is a measure of the equilibrium global surface air temperature change for a particular forcing.

The approximately 20 - year lag (between atmospheric CO2 concentration change and reaching equilibrium temperature) is an emerging property (just like sensitivity) of the global climate system in the GCM models used in the paper I linked to above, if I understood it correctly.

Nonetheless, there is a tendency for similar equilibrium climate sensitivity ECS, especially using a Charney ECS defined as equilibrium global time average surface temperature change per unit tropopause - level forcing with stratospheric adjustment, for different types of forcings (CO2, CH4, solar) if the forcings are not too idiosyncratic.

In this case the CO2 concentration is instantaneously quadrupled and kept constant for 150 years of simulation, and both equilibrium climate sensitivity and RF are diagnosed from a linear fit of perturbations in global mean surface temperature to the instantaneous radiative imbalance at the TOA.

One common measure of climate sensitivity is the amount by which global mean surface temperature would change once the system has settled into a new equilibrium following a doubling of the pre-industrial CO2 concentration.

«Radiative forcing [RF] can be related through a linear relationship to the global mean equilibrium temperature change at the surface (delta Ts): delta Ts = lambda * RF, where lambda is the climate sensitivity parameter (e.g., Ramaswamy et al., 2001).

But I would suppose that equilibrium climate sensitivity [background] and even global mean surface temperature on a decadal scale could be better nailed down by model pruning and better ocean data.

Over very long time periods such that the carbon cycle is in equilibrium with the climate, one gets a sensitivity to global temperature of about 20 ppm CO2 / deg C, or 75 ppb CH4 / deg C. On shorter timescales, the sensitivity for CO2 must be less (since there is no time for the deep ocean to come into balance), and variations over the last 1000 years or so (which are less than 10 ppm), indicate that even if Moberg is correct, the maximum sensitivity is around 15 ppm CO2 / deg C. CH4 reacts faster, but even for short term excursions (such as the 8.2 kyr event) has a similar sensitivity.

(ppm) Year of Peak Emissions Percent Change in global emissions Global average temperature increase above pre-industrial at equilibrium, using «best estimate» climate sensitivity CO 2 concentration at stabilization (2010 = 388 ppm) CO 2global emissions Global average temperature increase above pre-industrial at equilibrium, using «best estimate» climate sensitivity CO 2 concentration at stabilization (2010 = 388 ppm) CO 2Global average temperature increase above pre-industrial at equilibrium, using «best estimate» climate sensitivity CO 2 concentration at stabilization (2010 = 388 ppm) CO 2 - eq.

The equilibrium climate sensitivity refers to the equilibrium change in average global surface air temperature following a unit change in the radiative forcing.

But of course the pace of the temperature trend also depends on the global future emissions outlook and on remaining uncertainties surrounding climate sensitivity — or the politically most relevant metric «Equilibrium Climate Sensitivity» (ECS), the amount of warming expected on a decades timescale after doubling of the atmospheric CO2 concentclimate sensitivity — or the politically most relevant metric «Equilibrium Climate Sensitivity» (ECS), the amount of warming expected on a decades timescale after doubling of the atmospheric CO2 consensitivity — or the politically most relevant metric «Equilibrium Climate Sensitivity» (ECS), the amount of warming expected on a decades timescale after doubling of the atmospheric CO2 concentClimate Sensitivity» (ECS), the amount of warming expected on a decades timescale after doubling of the atmospheric CO2 conSensitivity» (ECS), the amount of warming expected on a decades timescale after doubling of the atmospheric CO2 concentration.

A metric to quantify the amplitude of global warming is the equilibrium climate sensitivity (ECS).

Keywords: Global Warming, Climate Change, Fossil Fuel Emissions, Anthropogenic Global Warming, AGW, ECS, Equilibrium Climate Sensitivity, CCR, Carbon Climate Response, Cumulative Emissions, Proportionality of Temperature and Cumulative Emissions TCRE, Transient Climate Response to Cumulative Emissions

Global Warming, Climate Change, Fossil Fuel Emissions, Anthropogenic Global Warming, AGW, ECS, Equilibrium Climate Sensitivity, CCR, Carbon Climate Response, Cumulative Emissions, Proportionality of Temperature and Cumulative Emissions TCRE, Transient Climate Response to Cumulative Emissions

Equilibrium Climate Sensitivity, Charney Sensitivity, Greenhouse Effect, Atmospheric Carbon Dioxide, Fossil Fuel Emissions, Anthropogenic Global Warming, Human Caused Climate Change

«Radiative forcing can be related through a linear relationship to the global mean equilibrium temperature change at the surface (ΔTs): ΔTs = λ RF, where λ is the climate sensitivity parameter (e.g., Ramaswamy et al., 2001).»

Climate sensitivity in its most basic form is defined as the equilibrium change in global surface temperature that occurs in response to a climate forcing, or externally imposed perturbation of the planetary energy bClimate sensitivity in its most basic form is defined as the equilibrium change in global surface temperature that occurs in response to a climate forcing, or externally imposed perturbation of the planetary energy bclimate forcing, or externally imposed perturbation of the planetary energy balance.

[¶]... Basing our assessment on a combination of several independent lines of evidence, as summarised in Box 10.2 Figures 1 and 2, including observed climate change and the strength of known feedbacks simulated in GCMs, we conclude that the global mean equilibrium warming for doubling CO2, or «equilibrium climate sensitivity», is likely to lie in the range 2 °C to 4.5 °C, with a most likely value of about 3 °C.

equilibrium climate sensitivity refers to the equilibrium change in the annual mean global surface temperature following a doubling of the atmospheric equivalent carbon dioxide concentration.

[Equilibrium] climate sensitivity is defined as the increase in global mean surface temperature (GMST), once the ocean has reached equilibrium, resulting from a doubling of the equivalent atmospheric CO2 concentration, being the concentration of CO2 that would cause the same radiative forcing as the given mixture of CO2 and other forcing Equilibrium] climate sensitivity is defined as the increase in global mean surface temperature (GMST), once the ocean has reached equilibrium, resulting from a doubling of the equivalent atmospheric CO2 concentration, being the concentration of CO2 that would cause the same radiative forcing as the given mixture of CO2 and other forcing equilibrium, resulting from a doubling of the equivalent atmospheric CO2 concentration, being the concentration of CO2 that would cause the same radiative forcing as the given mixture of CO2 and other forcing components.

The Lewis and Curry paper said the best estimate for equilibrium climate sensitivity — the change in global mean surface temperature at equilibrium that is caused by a doubling of the atmospheric CO2 concentration — was 1.64 degrees.

I argued that there are three technical reasons that the single value the IWG developed and proposed for use in this initiative should not be used exclusively: global benefits, discount rates and equilibrium climate sensitivity.

Do you mean by «sensitivity» the equilibrium climate sensitivity (ECS) that is a change in mean global temperatures (ΔTx2).

Our calculated global warming as a function of CO2 amount is based on equilibrium climate sensitivity 3 °C for doubled CO2.

seems to make any analysis with a linear dependence on global mean surface temperature suspect I suppose I should also add, for the purpose of analyzing equilibrium climate sensitivity — there may be other questions relating to short timescale processes where it may still be useful..

However, Curry has no publications or expertise in this area, and once said that the global equilibrium climate sensitivity could fall anywhere between 0 and 10 °C for doubled CO2.

''... had the IPCC FAR correctly projected the changes in atmospheric GHG from 1990 to 2011, their «best estimate» model with a 2.5 °C equilibrium climate sensitivity would have projected the ensuing global warming very accurately»

«Results imply that global and regional warming rates depend sensitively on regional ocean processes setting the [ocean heat uptake] pattern, and that equilibrium climate sensitivity can not be reliably estimated from transient observations.»

Incomplete understanding of three key properties of the climate system — equilibrium climate sensitivity, rate of ocean heat uptake and historical aerosol forcing — and their underlying physical processes lead to uncertainties in our assessment of the global - mean temperature evolution in the twenty - first century 1,2 6.

The climate sensitivity parameter (units: °C (W m - 2)-1) refers to the equilibrium change in the annual mean global surface temperature following a unit change in radiative forcing.

Climate sensitivity - In Intergovernmental Panel on Climate Change (IPCC) reports, equilibrium climate sensitivity refers to the equilibrium change in the annual mean global surface temperature following a doubling of the atmospheric equivalent carbon dioxide concentClimate sensitivity - In Intergovernmental Panel on Climate Change (IPCC) reports, equilibrium climate sensitivity refers to the equilibrium change in the annual mean global surface temperature following a doubling of the atmospheric equivalent carbon dioxide concentClimate Change (IPCC) reports, equilibrium climate sensitivity refers to the equilibrium change in the annual mean global surface temperature following a doubling of the atmospheric equivalent carbon dioxide concentclimate sensitivity refers to the equilibrium change in the annual mean global surface temperature following a doubling of the atmospheric equivalent carbon dioxide concentration.

The contribution of CO2 to global temperatures usually is quantified as climate sensitivity, either the Equilibrium Climate Sensitivity (ECS) or the Transient Climate Responseclimate sensitivity, either the Equilibrium Climate Sensitivity (ECS) or the Transient Climate Respsensitivity, either the Equilibrium Climate Sensitivity (ECS) or the Transient Climate ResponseClimate Sensitivity (ECS) or the Transient Climate RespSensitivity (ECS) or the Transient Climate ResponseClimate Response (TCR).

On a global basis, the Julia implementation of FUND3.9 give the following impacts per GDP by component assuming a 3 °C equilibrium climate sensitivity (ECS);

Mark B What, you mean this bit:, we conclude that the global mean equilibrium warming for doubling CO2, or «equilibrium climate sensitivity», is likely to lie in the range 2 °C to 4.5 °C, with a most likely value of about 3 °C.

Climate sensitivity (S) is the equilibrium global surface temperature change (ΔTeq) in response to a specified unit forcing after the planet has come back to energy balance, 5.1 i.e. climate sensitivity is the eventual (equilibrium) global temperature change per unit fClimate sensitivity (S) is the equilibrium global surface temperature change (ΔTeq) in response to a specified unit forcing after the planet has come back to energy balance, 5.1 i.e. climate sensitivity is the eventual (equilibrium) global temperature change per unit fclimate sensitivity is the eventual (equilibrium) global temperature change per unit forcing.

Therein you will find a lot of discussion about discount rates, «leakage», using a U.S. SCC v. a global SCC, average ton of CO2 v. marginal ton, «equilibrium climate sensitivity», and more.

It is broadly defined as the equilibrium global mean surface temperature change following a doubling of atmospheric CO2 concentration IPCC Fourth Assessment Report: Given that CO2 has been going up in a regular stepwise fashion for the last 30 years and there has been an initial jump in temps which was happily aligned with this with Mann like Climate sensitivity, Climate sensitivity might well have been 6.0.

Recently there have been some studies and comments by a few climate scientists that based on the slowed global surface warming over the past decade, estimates of the Earth's overall equilibrium climate sensitivity (the total amount of global surface warming in response to the increased greenhouse effect from a doubling of atmospheric CO2, including amplifying and dampening feedbacks) may be a bit too high.

The diagnosis of global radiative feedbacks allows better understanding of the spread of equilibrium climate sensitivity estimates among current GCMs.

The IPCC defines Equilibrium climate sensitivity as the change in global mean temperature that results when the climate system, or a climate model, attains a new equilibrium with the forcing change resulting from a doubling of the atmospheric CO2 conEquilibrium climate sensitivity as the change in global mean temperature that results when the climate system, or a climate model, attains a new equilibrium with the forcing change resulting from a doubling of the atmospheric CO2 conequilibrium with the forcing change resulting from a doubling of the atmospheric CO2 concentration.