Articles | Volume 26, issue 2
https://doi.org/10.5194/acp-26-1079-2026
© Author(s) 2026. 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-26-1079-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jan 2026
Research article |
| 22 Jan 2026
| 22 Jan 2026
Mid- and far-infrared spectral signatures of mineral dust from low- to high-latitude regions: significance and implications
Claudia Di Biagio
CORRESPONDING AUTHOR
Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, 75013 Paris, France
Elisa Bru
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Avila Orta
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Servanne Chevaillier
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Clarissa Baldo
Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, 75013 Paris, France
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Antonin Bergé
Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, 75013 Paris, France
now at: Laboratoire des Sciences du Climat et de l'Environnement, CEA–CNRS–UVSQ, IPSL, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Mathieu Cazaunau
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Sandra Lafon
Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, 75013 Paris, France
Sophie Nowak
Université Paris Cité, CNRS, ITODYS, Paris 75013, France
Edouard Pangui
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Meinrat O. Andreae
Max Planck Institute for Chemistry, 55128 Mainz, Germany
Department of Geology and Geophysics, King Saud University, Riyadh, Saudi Arabia
Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
Pavla Dagsson-Waldhauserova
Faculty of Environmental and Forest Sciences, Agricultural University of Iceland, 311 Hvanneyri, Iceland
Faculty of Environmental Sciences, Department of Water Resources and Environmental Modeling, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic
Kebonyethata Dintwe
Department of Environmental Science, University of Botswana, Gaborone, Botswana
Konrad Kandler
Institute of Applied Geosciences, Technical University of Darmstadt, 64287 Darmstadt, Germany
James S. King
Université de Montréal, Québec, Canada
Amelie Chaput
Université de Montréal, Québec, Canada
now at: Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore
Gregory S. Okin
Department of Geography, University of California – Los Angeles, Los Angeles, California, USA
Stuart Piketh
NorthWest University, Potchefstroom, South Africa
Thuraya Saeed
Department of Physics, Lakehead University, Thunder Bay, Ontario, Canada
David Seibert
Walden University, Minneapolis, Minnesota, USA
Zongbo Shi
School of Geography, Earth and Environmental Science, University of Birmingham, Birmingham, B15 2TT, UK
Earle Williams
Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
Pasquale Sellitto
Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, 94010 Créteil, France
Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy
Paola Formenti
Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, 75013 Paris, France
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Short summary
Spectroscopy measurements show that the absorbance of dust in the far-infrared up to 25 µm is comparable in intensity to that in the mid-infrared (3–15 µm) suggesting possible relevance for its direct radiative effect. Absorption signatures differ between Icelandic and low/mid-latitude dust due to differences in mineralogical composition. Spectral differences could be used to characterise the mineralogy and trace the origin of airborne dust based on infrared remote sensing observations.
Spectroscopy measurements show that the absorbance of dust in the far-infrared up to 25 µm is...
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