Articles | Volume 20, issue 23
https://doi.org/10.5194/acp-20-15079-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-15079-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Review article
| 
04 Dec 2020
Review article |
| 04 Dec 2020
| 04 Dec 2020
Constraining the Twomey effect from satellite observations: issues and perspectives
Johannes Quaas
CORRESPONDING AUTHOR
Leipzig Institute for Meteorology, Universität Leipzig, Leipzig, Germany
Antti Arola
Finnish Meteorological Institute, Kuopio,Finland
Brian Cairns
NASA Goddard Institute for Space Studies, New York, USA
Matthew Christensen
Department of Physics, University of Oxford, Oxford, UK
Hartwig Deneke
Leibniz Institute for Tropospheric Research, Leipzig, Germany
Annica M. L. Ekman
Department of Meteorology and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
Graham Feingold
NOAA Earth System Laboratories, Chemical Science Laboratory, Boulder, USA
Ann Fridlind
NASA Goddard Institute for Space Studies, New York, USA
Edward Gryspeerdt
Space and Atmospheric Physics Group, Imperial College London, UK
Otto Hasekamp
SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
Zhanqing Li
Earth System Science Interdisciplinary Center and Department of Atmospheric and Oceanic Science, University of Maryland, College Park, USA
Antti Lipponen
Finnish Meteorological Institute, Kuopio,Finland
Po-Lun Ma
Pacific Northwest National Laboratory, Richland, USA
Johannes Mülmenstädt
Pacific Northwest National Laboratory, Richland, USA
Athanasios Nenes
School of Architecture, Civil & Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras, Greece
Joyce E. Penner
Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, USA
Daniel Rosenfeld
Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
Roland Schrödner
Leibniz Institute for Tropospheric Research, Leipzig, Germany
Kenneth Sinclair
NASA Goddard Institute for Space Studies, New York, USA
Department of Earth and Environmental Engineering, Universities Space Research Association (USRA), Columbia, MD 21046, USA
Odran Sourdeval
Université de Lille, CNRS, UMR 8518 – LOA – Laboratoire d'Optique Atmosphérique, Lille, France
Philip Stier
Department of Physics, University of Oxford, Oxford, UK
Matthias Tesche
Leipzig Institute for Meteorology, Universität Leipzig, Leipzig, Germany
Bastiaan van Diedenhoven
NASA Goddard Institute for Space Studies, New York, USA
Manfred Wendisch
Leipzig Institute for Meteorology, Universität Leipzig, Leipzig, Germany
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Latest update: 20 Nov 2025
Short summary
Anthropogenic pollution particles – aerosols – serve as cloud condensation nuclei and thus increase cloud droplet concentration and the clouds' reflection of sunlight (a cooling effect on climate). This Twomey effect is poorly constrained by models and requires satellite data for better quantification. The review summarizes the challenges in properly doing so and outlines avenues for progress towards a better use of aerosol retrievals and better retrievals of droplet concentrations.
Anthropogenic pollution particles – aerosols – serve as cloud condensation nuclei and thus...
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