Sentences with phrase «observational estimates of climate sensitivity»

Various mechanisms have been proposed for this hiatus in global warming3, 4,5,6, but their relative importance has not been quantified, hampering observational estimates of climate sensitivity.

B) Im interested because the temperature record is important to observational estimates of climate sensitivity.

Observational estimates of climate sensitivity from changes in the rate of ocean heat uptake and comparison to CMIP5 models.

- that new estimates of aerosol cooling are low - that new estimates of Ocean heat uptake are low - that therefore observational estimates of climate sensitivity may prove low - that observational estimates are now good enough that they should be preferred over models - that warming below 2C is net beneficial

Not exact matches

Since we can not do controlled experiments, climate science is an OBSERVATIONAL science we can't put the climate in a beaker, we can only look at past temperatures and past forcings to CONSTRAIN our estimate of sensitivity.

As these figures show, estimates from both models and observational data consistently find that the most likely climate sensitivity value is approximately 3 °C for a doubling of CO2.

«Lewis & Crok perform their own evaluation of climate sensitivity, placing more weight on studies using «observational data» than estimates of climate sensitivity based on climate model analysis.»

As a result, the study would provide little evidence that historical period observational estimates of ECS have been biased low in relation to effective climate sensitivity.

In context of the way climate sensitivity is defined by the IPCC, uncertainty in climate sensitivity is decreasing as errors in previous observational estimates are identified and eliminated and model estimates seem to be converging more.

There are also a substantial number of observational climate sensitivity estimates below 1 C. e.g. Lindzen & Choi (2009) at 0.5 C. See my comment on apparent bimodal distribution of climate sensitivity estimates.

There are also a substantial number of observational climate sensitivity estimates below 1 C, e.g. Lindzen & Choi (2009) at 0.5 C..

In the Working Group 1: The Physical Science Basis Report of AR4 («AR4: WG1»), various studies deriving estimates of equilibrium climate sensitivity from observational data are cited, and a comparison of the results of many of these studies is shown in Figure 9.20, reproduced below.

The observational constraint in Volodin (2008) suggests that climate sensitivity more likely lies in the upper range of model estimates (ECS most likely around 3.5 K), in agreement with more recent studies by Siler et.

Fred, You write: «Ron — Every climate sensitivity estimate that has ever been done has utilized models of one sort or another, and all have also used observational data.»

To better assess confidence in the different model estimates of climate sensitivity, two kinds of observational tests are available: tests related to the global climate response associated with specified external forcings (discussed in Chapters 6, 9 and 10; Box 10.2) and tests focused on the simulation of key feedback processes.

The 0C - 10C range for 2xCO2 climate sensitivity encompasses ALL the published estimates I have seen, from the Spencer and Lindzen lower end of 0.6 C (from CERES and ERBE satellite observations) and the Forster and Gregory range of 0.9 C to 3.7 C (based on «purely observational evidence» — see earlier thread) to IPCC's range of 2.0 C to 4.5 C (from model simulations based largely on theoretical deliberations rather than physical observations).