Sentences with phrase «aerosol amount»

A multidisciplinary team led by Pacific Northwest National Laboratory's Dr. Chuck Long found that, at least in the continental United States, changes in clouds and cloudiness have a greater influence on brightening than any decrease in aerosol amounts alone.

The indirect aerosol effect on clouds is non-linear [1], [76] such that it has been suggested that even the modest aerosol amounts added by pre-industrial humans to an otherwise pristine atmosphere may have caused a significant climate forcing [59].

The indirect aerosol effect on clouds is non-linear [1], [76] such that it has been suggested that even the modest aerosol amounts added by pre-industrial humans to an otherwise pristine atmosphere may have caused a significant climate forcing [59].

Intensive properties are independent of aerosol amount, depending only on the nature of the specific aerosol.

The optical thickness for Santa Maria (0.55 times that of Pinatubo) has comparable aerosol amount in both hemispheres based on ice core data.

Background aerosols with an optical thickness 0.0001 were added as a lower limit for aerosol amount at all times.

This forcing is calculated using the total aerosol amount inferred from the AVHRR data.

In the new work, published in Geophysical Research Letters late last month, researchers modified an established climate model to gauge the effects of varying aerosol amount and size.

But models are not tuned to the trends in surface temperature, and as Gavin noted before (at least for the GISS model), the aerosol amounts are derived from simulations using emissions data and direct effects determined by changes in concentrations.

Please explain the (difference between the) aerosol amounts / composition / effects (especially for ocean heat content) over the NH and SH in the 2001 GCMs vs. current GCMs for the calculations of the 1945 - 1975 period and the 1975 - 200x period.

JCH — We can calculate the aerosol radiative forcing accurately enough, provided we know the aerosol amount and composition.

Even with steady emissions, the greenhouse gases will continue to buildup in the atmosphere, while the aerosol amounts would stay unchanged.

During this period, the aerosol amount varied with dust export from Africa, but also from major eruptions by two volcanoes (El Chichon in 1982 and Pinatubo in 1991), each of which left a reflective layer of sulfate droplets in the lower stratosphere for a couple of years.