Articles | Volume 18, issue 13
https://doi.org/10.5194/amt-18-2847-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-2847-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Jul 2025
Research article |
| 04 Jul 2025
| 04 Jul 2025
Star photometry with all-sky cameras to retrieve aerosol optical depth at nighttime
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Daniel González-Fernández
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Juan Carlos Antuña-Sánchez
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
GRASP-SAS, 59000, Lille, France
Celia Herrero del Barrio
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Sara Herrero-Anta
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
África Barreto
Izaña Atmospheric Research Center, Meteorological State Agency of Spain (AEMet), 38001, Santa Cruz de Tenerife, Spain
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Victoria E. Cachorro
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Lionel Doppler
Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg – Richard-Aßmann-Observatorium (DWD, MOL-RAO), 15848 Lindenberg (Tauche), Germany
Ramiro González
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Christoph Ritter
Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 14473 Potsdam, Germany
David Mateos
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Natalia Kouremeti
Physikalisch-Meteorologisches Observatorium Davos and World Radiation Center (PMOD/WRC), 7260 Davos, Switzerland
Gustavo Copes
Servicio Meteorológico Nacional, 4019, Buenos Aires, Argentina
Abel Calle
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
María José Granados-Muñoz
Department of Applied Physics, Universidad de Granada, 18071, Granada, Spain
Andalusian Institute for Earth System Research, IISTA-CEAMA, 18006, Granada, Spain
Carlos Toledano
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
Ángel M. de Frutos
Group of Atmospheric Optics (GOA-UVa), Universidad de Valladolid, 47011, Valladolid, Spain
Laboratory of Disruptive Interdisciplinary Science (LaDIS), 47011, Valladolid, Spain
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Short summary
This paper presents a novel technique to extract starlight signals from all-sky images and retrieve aerosol optical depth (AOD). It is validated against lunar photometry, showing a strong correlation between data series. This innovative approach will expand nocturnal AOD measurements to more locations, as all-sky cameras are a simpler and more cost-effective alternative to stellar and lunar photometers.
This paper presents a novel technique to extract starlight signals from all-sky images and...
