Eastern pacific emitted aerosol cloud experiment

Lynn M. Russell, Armin Sorooshian, John H. Seinfeld, Bruce A. Albrecht, Athanasios Nenes, Lars Ahlm, Yi Chun Chen, Matthew Coggon, Jill S. Craven, Richard C. Flagan, Amanda A. Frossard, Haflidi Jonsson, Eunsil Jung, Jack J. Lin, Andrew R. Metcalf, Robin Modini, Johannes Mülmenstädt, Greg C. Roberts, Taylor Shingler, Siwon SongZhen Wang, Anna Wonaschütz

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


A coordinated field experiment, the Eastern Pacific Emitted Aerosol Cloud Experiment (E-PEACE) campaign, in which the effects of well-defined aerosol perturbations on marine stratocumulus clouds were probed via in situ aircraft and satellite observations. E-PEACE combined a targeted aircraft campaign off the coast of Monterey in July and August 2011 with embedded ship and satellite observations and modeling studies. The research vessel (R/V) Point Sur was applied to measure the aerosol below cloud and as a platform for well-characterized smoke emissions to produce a uniquely identifiable cloud signature. The Center for Interdisciplinary Remotely-Piloted Aircraft Studies (CIRPAS) Twin Otter aircraft was used with a full payload of instruments to measure particle and cloud droplet number, mass, and composition. The novel aspect of using E-PEACE observations for ACP studies is that the starting point can be constrained with the particle number, size, and composition of emitted particles, and predict their activation in cloud.

Original languageEnglish (US)
Pages (from-to)709-729
Number of pages21
JournalBulletin of the American Meteorological Society
Issue number5
StatePublished - May 2013
Externally publishedYes


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