Articles | Volume 23, issue 15
https://doi.org/10.5194/acp-23-8515-2023
© Author(s) 2023. 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-23-8515-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Aug 2023
Research article |
| 01 Aug 2023
| 01 Aug 2023
Pollution slightly enhances atmospheric cooling by low-level clouds in tropical West Africa
Valerian Hahn
CORRESPONDING AUTHOR
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Institute for Atmospheric Physics, Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 21, 55099 Mainz, Germany
Ralf Meerkötter
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Christiane Voigt
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Institute for Atmospheric Physics, Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 21, 55099 Mainz, Germany
Sonja Gisinger
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Daniel Sauer
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Valéry Catoire
UMR CNRS–Universite Orleans–CNES, 3A Av. Recherche Scientifique, 45071 Orleans CEDEX 2, France
Volker Dreiling
Flight Experiments, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Weßling, Germany
Centre for Atmospheric Science, The University of Manchester, Simon Building, Oxford Road, Manchester, M13 9PL, UK
Cyrille Flamant
Laboratoire Atmosphères, Milieux, Observations Spatiales, UMR 8190
CNRS–Sorbonne Université–Université Paris-Saclay–Campus Jussieu, Boite 102 Tour 45 Couloir 45-46, 3e Etage 4 Place Jussieu,
75252 Paris CEDEX 05, France
Stefan Kaufmann
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Jonas Kleine
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Peter Knippertz
Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany
Manuel Moser
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Institute for Atmospheric Physics, Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 21, 55099 Mainz, Germany
Philip Rosenberg
School of Earth and Environment, University of Leeds, Woodhouse, Leeds, LS2 9JT, UK
Hans Schlager
Institute of Atmospheric Physics (IPA), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Münchener Straße 20, 82234 Wessling, Germany
Alfons Schwarzenboeck
Laboratoire de Météorologie Physique (LaMP), Université Clermont Auvergne,
avenue Blaise Pascal 4, CNRS, TSA 60026, CS 60026, 63178 Aubière CEDEX, France
Jonathan Taylor
Centre for Atmospheric Science, The University of Manchester, Simon Building, Oxford Road, Manchester, M13 9PL, UK
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Cited
2 citations as recorded by crossref.
- Overview and statistical analysis of boundary layer clouds and precipitation over the western North Atlantic Ocean S. Kirschler et al. 10.5194/acp-23-10731-2023
- A database of aircraft measurements of carbon monoxide (CO) with high temporal and spatial resolution during 2011–2021 C. Xue et al. 10.5194/essd-15-4553-2023
2 citations as recorded by crossref.
- Overview and statistical analysis of boundary layer clouds and precipitation over the western North Atlantic Ocean S. Kirschler et al. 10.5194/acp-23-10731-2023
- A database of aircraft measurements of carbon monoxide (CO) with high temporal and spatial resolution during 2011–2021 C. Xue et al. 10.5194/essd-15-4553-2023
Latest update: 08 May 2024
Short summary
During the DACCIWA campaign in West Africa, we found a 35 % increase in the cloud droplet concentration that formed in a polluted compared with a less polluted environment and a decrease of 17 % in effective droplet diameter. Radiative transfer simulations, based on the measured cloud properties, reveal that these low-level polluted clouds radiate only 2.6 % more energy back to space, compared with a less polluted cloud. The corresponding additional decrease in temperature is rather small.
During the DACCIWA campaign in West Africa, we found a 35 % increase in the cloud droplet...
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