Sentences with phrase «system variability accounts»

«We have shown that internal global climate - system variability accounts for at least 80 % of the observed global climate variation over the past half - century.

Not exact matches

The American Statistical Association concluded recently that teachers account for about 1 per cent to 14 per cent of the variability in test scores, and that the majority of opportunities for quality improvement are found in system - level conditions.4 In other words, most of what explains student achievement is beyond the control of teachers or even schools, and therefore arguing that teachers are the most important factor in improving the quality of education is simply wrong.

Just recently, the American Statistical Association said: «Most VAM studies find that teachers account for about 1 % to 14 % of the variability in test scores, and that the majority of opportunities for quality improvement are found in the system - level conditions.

As for OHC, it is likely to be a combination of internal variability, not accounting for heat increases below 700m, and issues with the observing system — compare to the Lyman et al analysis.

Whether ocean circulation models... neither explicitly accounting for the energy input into the system nor providing for spatial variability in the mixing, have any physical relevance under changed climate conditions is at issue.»

«The science of climate dynamics: continues to publish findings about solar / climate relationships and internal variability of the climate system that invalidate the account of the Earth's climate dynamics presented by the IPCC; predicts the likelihood of an extended period of global cooling, if the emergent solar cycle 24 has a low amplitude, as seems increasingly likely on the basis of current science,» Mackey explained.

[8] C.L. Weber, P. Jaramillo, J. Marriott, C. Samaras, Uncertainty and variability in accounting for grid electricity in life cycle assessment, in: Sustainable Systems and Technology, 2009.

Firstly, even with man - made global warming taken into account, because of the short - term noise due to the internal variability in the climate system, climate models predict that there will be decades where natural cycles dampen the man - made warming trend.

However, this method does not account for the natural variability in the Arctic system that may be an important factor in trends over the recent past.

If however you could make a positive suggestion as to alternative mechanism to account for observations then that would be welcome but I hold out no hope of that because you don't even accept that the observations do differ from what we would expect from internal system variability on it's own.

New structural forms are needed for climate models that are capable of simulating the natural internal variability of the coupled ocean - atmosphere system on timescales from days to millennia and that can accurately account for the fast thermodynamic feedback processes associated with clouds and water vapor.»

In particular the observed differential warming and cooling of the layers above the tropopause which doesn't seem to be adequately accounted for by system variability from below.

I really want to know if ALL observations can be FULLY accounted for by internal system variability with NO influence from above via solar variability.