Sentences with phrase «overestimated aerosol effects»

This is not one of the models overestimating GHG and compensating with overestimated aerosol effects, according to Chylek et al (assuming that the GISS - E2 - H1 is the same as GISS - E2 - H above).

This difference implies that GCMs overestimate the aerosol effect, but the reasons for the difference are not obvious.»

Not exact matches

For sulphate aerosols, current models probably overestimate their influence, as there is no measurable effect of the large (over 60 %) reduction in SO2 emissions in Europe at the places where the largest influence should be visible, according to the models.

The prominent upward trend in the GM precipitation occurring in the last century and the notable strengthening of the global monsoon in the last 30 yr (1961 — 90) appear unprecedented and are due possibly in part to the increase of atmospheric carbon dioxide concentration, though the authors» simulations of the effects from recent warming may be overestimated without considering the negative feedbacks from aerosols.

... Schneider became aware that he had overestimated the cooling effect of aerosols, and underestimated the warming effect of CO2 by a factor of about three.

IPCC2013 SPM - 10 admitted there may be «in some models, an overestimate of the response to increasing greenhouse gas and other anthropogenic forcing (dominated by the effects of aerosols)», but retained the alarming upper limit of 4.5 º C from IPCC2007.

Using this new metric, they showed that aerosols» effects on clouds are overestimated by as much as 30 percent in a global climate model.

In fact, thee exists an attempt to reconstruct climate variations by stressing the climatic effect of the volcano aerosol, but the lack of strong volcano spikes in the temperature record suggest that the volcano effect is already overestimated.

However, Zhang et al. (34) showed that they overestimated the indirect aerosol effect.