Andrew J. Heymsfield

TL;DR: The Indian Ocean Experiment (INDOEX) documented this Indo-Asian haze at scales ranging from individual particles to its contribution to the regional climate forcing as discussed by the authors, and integrated the multiplatform observations (satellites, aircraft, ships, surface stations, and balloons) with one-and four-dimensional models to derive the regional aerosol forcing resulting from the direct, the semidirect and the two indirect effects.

TL;DR: An opposite mechanism through which aerosols can reduce cloud cover and thus significantly offset aerosol-induced radiative cooling at the top of the atmosphere on a regional scale is demonstrated.

TL;DR: In this paper, a data set obtained in cirrus clouds has been examined to deduce any dependencies of the particle size spectral form or the crystal habit on the temperature, and it was found that both form of the spectra and crystal habit changed systematically with temperature, the largest change occurring between −l40 and −50°C.

TL;DR: In this paper, aircraft-aerosol time-of-flight spectroscopy measurements of ice residues indicate that biological particles trigger ice formation in high-altitude clouds, which is one of the largest remaining sources of uncertainty in climate change projections.

TL;DR: A survey of the state of the art on homogeneous and heterogeneous nucleation can be found in this paper, where the authors survey the state-of-the-art on the underlying mechanisms of nucleation in the troposphere.