Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3185-2018
© Author(s) 2018. 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-18-3185-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
06 Mar 2018
Research article | Highlight paper |
| 06 Mar 2018
| 06 Mar 2018
Results from the Fourth WMO Filter Radiometer Comparison for aerosol optical depth measurements
Stelios Kazadzis
CORRESPONDING AUTHOR
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
Institute of Environmental Research and Sustainable Development,
National Observatory of Athens, Athens, Greece
Natalia Kouremeti
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
Henri Diémoz
Aria e Atmosfera – Radiazione solare e atmosfera ARPA Valle,
Saint-Christophe 11020, Italy
Julian Gröbner
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
Bruce W. Forgan
Standards & Metrology, Bureau of Meteorology, Docklands Vic 3008,
Australia
Monica Campanelli
SACI-CNR,Via Fosso del Cavaliere 100, 00133, Rome, Italy
Victor Estellés
Department of Earth Physics and Thermodynamics, Solar Radiation and
Research Unit, Univ. de València, Valencia, Spain
Kathleen Lantz
Cooperative Institute for Research in Environmental Studies,
NOAA/ESRL/GMD, Boulder, CO 80305, USA
Joseph Michalsky
Cooperative Institute for Research in Environmental Studies,
NOAA/ESRL/GMD, Boulder, CO 80305, USA
Thomas Carlund
Swedish Meteorological and Hydrological Institute, 601 76
Norrköping, Sweden
Emilio Cuevas
Izaña Atmospheric Research Centre, State Meteorological Agency
(AEMET), Santa Cruz de Tenerife, Spain
Carlos Toledano
Atmospheric Optics Group (GOA), University of Valladolid 47011,
Valladolid, Spain
Ralf Becker
Deutscher Wetterdienst Meteorologisches Observatorium Lindenberg,
15848 Tauche, Germany
Stephan Nyeki
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
Panagiotis G. Kosmopoulos
Institute of Environmental Research and Sustainable Development,
National Observatory of Athens, Athens, Greece
Viktar Tatsiankou
COFOVO Energy Inc., 800 King Edward Avenue, Suite 3014, Ottawa, ON,
K1N 6N5, Canada
Laurent Vuilleumier
Federal Office of Meteorology and Climatology MeteoSwiss, Payerne,
Switzerland
Frederick M. Denn
Science Systems & Applications Inc NASA Langley Science
Directorate, Hampton, VA 23666, USA
Nozomu Ohkawara
Japan Meteorological Agency 1-3-4 Otemachi, Chiyoda-ku, 100-8122
Tokyo, Japan
Osamu Ijima
Japan Meteorological Agency 1-3-4 Otemachi, Chiyoda-ku, 100-8122
Tokyo, Japan
Philippe Goloub
Laboratoire d'Optique Atmosphérique, Univ. des Sciences et
Technologies de Lille 159655 Villeneuve d'Ascq, France
Panagiotis I. Raptis
Institute of Environmental Research and Sustainable Development,
National Observatory of Athens, Athens, Greece
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
Michael Milner
Standards & Metrology, Bureau of Meteorology, Docklands Vic 3008,
Australia
Klaus Behrens
Deutscher Wetterdienst Meteorologisches Observatorium Lindenberg,
15848 Tauche, Germany
Africa Barreto
Izaña Atmospheric Research Centre, State Meteorological Agency
(AEMET), Santa Cruz de Tenerife, Spain
Atmospheric Optics Group (GOA), University of Valladolid 47011,
Valladolid, Spain
Cimel Electronique, 75011, Paris, France
Giovanni Martucci
Federal Office of Meteorology and Climatology MeteoSwiss, Payerne,
Switzerland
Emiel Hall
Cooperative Institute for Research in Environmental Studies,
NOAA/ESRL/GMD, Boulder, CO 80305, USA
James Wendell
Cooperative Institute for Research in Environmental Studies,
NOAA/ESRL/GMD, Boulder, CO 80305, USA
Bryan E. Fabbri
Science Systems & Applications Inc NASA Langley Science
Directorate, Hampton, VA 23666, USA
Christoph Wehrli
Physikalisch-Meteorologisches Observatorium Davos, World Radiation
Center, Davos, Switzerland
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Latest update: 06 Nov 2025
Short summary
Aerosol optical depth measured from ground-based sun photometers is the most important parameter for studying the changes in the Earth's radiation balance due to aerosols. Representatives for various sun photometer types belonging to individual institutions or international aerosol networks gather every 5 years, for 3 weeks, in Davos, Switzerland, in order to compare their aeorosol optical depth retrievals. This work presents the results of the latest (fourth) filter radiometer intercomparison.
Aerosol optical depth measured from ground-based sun photometers is the most important parameter...
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