Sentences with phrase «estimate of climate sensitivity close»

A best estimate of climate sensitivity close to 3 °C for doubled CO2 has been inferred from paleoclimate data [51]--[52].

A best estimate of climate sensitivity close to 3 °C for doubled CO2 has been inferred from paleoclimate data [51]--[52].

Not exact matches

«the long fat tail that is characteristic of all recent estimates of climate sensitivity simply disappears, with an upper 95 % probability limit... easily shown to lie close to 4 °C, and certainly well below 6 °C.»

The climate sensitivity is closest associated with, for which the mean estimate was 1.11, with a 5 -95-percentile interval of 0.74 - 1.62.

Is there any indication of acknowledgement climate sensitivity may be closer to the Forster / Gregory06 estimate (not the IPCC replot) than the IPCC AR4 concluded?

Anyone reading our paper may or may not agree with our choice of parameters and hence with our revised estimates of climate sensitivity, which are very much lower and very much closer to observed reality than those of the more complex models.

Would the lower rate of cooling give us something close to an empirical estimate of climate sensitivity to increased CO2?

However, because climate scientists at the time believed a doubling of atmospheric CO2 would cause a larger global heat imbalance than today's estimates, the actual climate sensitivities were approximatly 18 % lower (for example, the «Best» model sensitivity was actually closer to 2.1 °C for doubled CO2).

However, as in the FAR, because climate scientists at the time believed a doubling of atmospheric CO2 would cause a larger global heat imbalance than current estimates, the actual «best estimate» model sensitivity was closer to 2.1 °C for doubled CO2.

Although below the model ECS of 2.3 C, that is very close to the GISS - E2 - R effective climate sensitivity of ~ 2 C, which is what this method would estimate if the forcing were purely from CO2.

The fact that others have created pdfs from sensitivity estimates and that economists uses these pdfs is not a justification; rather, climate researchers and statisticians need to take a close look at this to see whether this line of reasoning is flawed.

If one attributes half of the observed warming (instead of only 7 %) to natural forcing, this would put the 2xCO2 climate sensitivity at 0.8 °C, or very close to the Lindzen and Spencer estimates.

The reason to keep doing the science, as with the new article suggesting recent increasing transfer of surface heat to the deep Atlantic, is to get a closer estimate of climate sensitivity, which will then help narrow the choice of policy options.

There have been a number of new papers that use recent atmospheric, ocean, and surface temperature observations to argue that climate sensitivity may be lower than previously estimated (e.g. closer to 2 C than 4 C).

Contrary to Schlesinger's result, the majority of state - of - the - art four - dimensional «general circulation models» (GCMs)- the kind used in the Trenberth and Fasullo study - estimate the climate sensitivity is closer to 3 degrees C.

In discussion of the climate sensitivity to doubled atmospheric CO2 concentration, the combined subjective and objective criteria are explained: the range of model results was 1.9 °C to 5.2 °C; most were close to 4.0 °C; but the newer model results were lower; and hence the best estimate was 2.5 °C with a range of 1.5 °C to 4.5 °C.

The lower value — which conforms rather more closely with mainstream thinking than the higher value yields an effective climate sensitivity of ca 1.5 deg K for a doubling of CO2, which gets fairly close to ZDM estimates using historical forcing, temperature and ocean heat data.»

At first look I would think this is more like an estimate of transient climate sensitivity (and it happens to be close to the IPCC number for TCS).

But again he was lucky: picking ~ 2ºC rather than the more likely ~ 3ºC climate sensitivity compensates roughly for this, so his 20th - Century warming of 0.8 ºC is almost spot on (the actual estimate being closer to 0.7 ºC, see Fig.