Aerosols interact with radiation and clouds. Substantial progress made over the past 40
years in observing, understanding, and modeling these processes helped quantify the …

It is thought that changes in the concentration of cloud-active aerosol can alter the
precipitation efficiency of clouds, thereby changing cloud amount and, hence, the radiative …

The Atmospheric Radiation Measurement (ARM) Climate Research Facility (www. arm. gov)
provides atmospheric observations from diverse climatic regimes around the world. Because …

This paper synthesizes the available scientific information connecting atmospheric
nucleation with subsequent cloud condensation nuclei (CCN) formation. We review both …

Aerosol indirect effects continue to constitute one of the most important uncertainties for
anthropogenic climate perturbations. Within the international AEROCOM initiative, the …

Aerosol–cloud interaction (ACI) is complex and difficult to be well represented in current
climate models. Progress on understanding ACI processes, such as the influence of …

The Climate Research Facility of the US Department of Energy's Atmospheric Radiation
Measurement (ARM) Program operates a network of ground-based microwave radiometers …

Atmospheric aerosols affect the Earth's climate in many ways, including acting as the seeds
on which cloud droplets form. Since a large fraction of these particles is anthropogenic, the …

The European Centre for Medium-range Weather Forecast (ECMWF) provides an aerosol re-
analysis starting from year 2003 for the Monitoring Atmospheric Composition and Climate …

Using six flights observations in September 2015 over Hebei, China, this study shows a
robust negative aerosol‐cloud droplet effective radius (re) relationship for liquid clouds …