Sentences with phrase «sensitivity estimation methods»

Not exact matches

Where (equilibrium / effective) climate sensitivity (S) is the only parameter being estimated, and the estimation method works directly from the observed variables (e.g., by regression, as in Forster and Gregory, 2006, or mean estimation, as in Gregory et al, 2002) over the instrumental period, then the JP for S will be almost of the form 1 / S ^ 2.

The most popular observationally - constrained method of estimating climate sensitivity involves comparing data whose relation to S is too complex to permit direct estimation, such as temperatures over a spatio - temporal grid, with simulations thereof by a simplified climate model that has adjustable parameters for setting S and other key climate properties.

[my ideas are: (1) climate sensitivity value estimation is science fiction, (2) abusing of montecarlo methods in order to attribute climate change to mankind is incorrect and (3) climatic models are not reliable as they are based in THAT climate sensitivity and as they require at least 900 years of data compilation to work properly].

So many estimations of climate sensitivity have now been made, involving many different methods and eras, that I have the sense that our confidence in the general range of values that has emerged is reinforced by the convergence of data.

The sensitivity, shown in Supplementary Table 6, of TCR estimation using the difference method to choice of base period when using a 2000 — 09 final period is explicable primarily by poor matching of volcanic forcing when base periods other than 1861 — 80 are used.

Accordingly, the forcing estimation method relies upon a model exhibiting a fairly linear climate response, and hence having a climate feedback parameter (and an effective climate sensitivity) that does not vary with time (in addition to having a temperature response that is proportional to forcing).

As discussed in some detail in LC15, sensitivity estimation using an energy budget difference method is sensitive to variations between the base and final periods in volcanic forcing, due to its very low apparent efficacy, so periods with matching volcanism should be used.

Where (equilibrium / effective) climate sensitivity (S) is the only parameter being estimated, and the estimation method works directly from the observed variables (e.g., by regression, as in Forster and Gregory, 2006, or mean estimation, as in Gregory et al, 2002) over the instrumental period, then the JP for S will be almost of the form 1 / S ^ 2.

The regression - with - intercept estimation method Marvel et al. use for iRF efficacies and sensitivities is inappropriate; and most of their estimates using ERF do not agree with the underlying data.

JK No, my method - which follows the estimation of climate sensitivity in Gregory 02 - does not assume that the ocean is in equilibrium now.