Zugriffsnummer 52607
Dokumenttyp Zeitschriftenartikel Open Access Gold
Peer Review mit Peer Review
Sprache Englisch
Titel Evaluation of on-site calibration procedures for SKYNET Prede POM sun–sky photometers
Autor(in); Institution
Campanelli, Monica; Institute of Atmospheric Sciences and Climate, CNR, Rome, ITALY
Estellés, Victor; Department of Earth Physics and Thermodynamics, Universitat de València, Valencia, SPAIN
Kumar, Gaurav; Department of Earth Physics and Thermodynamics, Universitat de València, Valencia, SPAIN
Nakajima, Teruyuki; National Institute for Environmental Studies, Tsukuba, Ibaraki, JAPAN
Momoi, Masahiro; Generalized Retrieval of Atmosphere and Surface Properties (GRASP SAS), Villeneuve-d'Ascq, FRANCE
Gröbner, Julian; Physical Meteorological Observatory Davos/World Radiation Center (PMOD/WRC), Davos, SWITZERLAND
Kazadzis, Stelios; Physical Meteorological Observatory Davos/World Radiation Center (PMOD/WRC), Davos, SWITZERLAND
Kouremeti, Natalia; Physical Meteorological Observatory Davos/World Radiation Center (PMOD/WRC), Davos, SWITZERLAND
Karanikolas, Angelos; Physical Meteorological Observatory Davos/World Radiation Center (PMOD/WRC), Davos, SWITZERLAND
Barreto, Africa; Izaña Atmospheric Research Center (IARC), Agencia Estatal de Meteorología (AEMET), Santa Cruz de Tenerife, SPAIN
Nevas, Saulius; 4.1, Photometrie und Spektroradiometrie, PTB-Braunschweig
Schwind, Kerstin Maria; 4.1, Photometrie und Spektroradiometrie, PTB-Braunschweig
Schneider, Philipp; 4.1, Photometrie und Spektroradiometrie, PTB-Braunschweig
Harju, Iiro; Department of Electrical Engineering and Automation, Aalto University, Aalto, FINLAND
Kärhä, Petri; Department of Electrical Engineering and Automation, Aalto University, Aalto, FINLAND
Diémoz, Henri; ARPA Valle d'Aosta, Saint Christophe, ITALY
Kudo, Rei; Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, JAPAN
Uchiyama, Akihiro; National Institute for Environmental Studies, Tsukuba, JAPAN
Yamazaki, Akihiro; Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, JAPAN
Iannarelli, Anna Maria; Serco Italia SpA, Frascati, ITALY
Mevi, Gabriele; Serco Italia SpA, Frascati, ITALY
Di Bernardino, Annalisa; Department of Physics, Sapienza University of Rome, Rome, ITALY
Casadio, Stefano; Serco Italia SpA, Frascati, ITALY
Quelle/Jahr Atmospheric Measurement Techniques: 17 (2024), 17, 5029 - 5050
ISSN 1867-1381 (print) ; 1867-8548 (online)
DOI
Verlag Katlenburg-Lindau: Copernicus
Zusammenfassung To retrieve columnar intensive aerosol properties from sun-sky photometers, both irradiance and radiance calibration factors are needed. For the irradiance the solar calibration constant, V0, which denotes the instrument counts for a direct normal solar flux extrapolated to the top of the atmosphere, must be determined. The solid view angle, SVA, is a measure of the field of view of the instrument, and it is important for obtaining the radiance from sky diffuse irradiance measurements. Each of the three sun-photometer networks considered in the present study (SKYNET, AERONET, WMO GAW) adopts different protocols of calibration, and we evaluate the performance of the on-site calibration procedures, applicable to every kind of sun-sky photometer but tested in this analysis only on SKYNET Prede POM01 instruments, during intercomparison campaigns and laboratory calibrations held in the framework of the Metrology for Aerosol Optical Properties (MAPP) European Metrology Programme for Innovation and Research (EMPIR) project. The on-site calibration, performed as frequently as possible (ideally monthly) to monitor changes in the device conditions, allows operators to track and evaluate the calibration status on a continuous basis, considerably reducing the data gaps incurred by the periodic shipments for performing centralized calibrations. The performance of the on-site calibration procedures for V0 was very good at sites with low turbidity, showing agreement with a reference calibration between 0.5 % and 1.5 % depending on wavelengths. In the urban area, the agreement decreases between 1.7 % and 2.5 %. For the SVA the difference varied from a minimum of 0.03 % to a maximum of 3.46 %.
Kostenfreier Zugang Open Access Gold
Rechteinformation CC BY 4.0 ; Creative Commons Attribution 4.0 License
Forschungsprojekt Stelios Kazadzis acknowledges ACTRIS-CH (Aerosol, Clouds and Trace Gases Research Infrastructure - Swiss contribution), funded by the State Secretariat for Education, Research and Innovation. The participation of Gaurav Kumar has been supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund through project PID2022-138730OB-I00, as well as Santiago Grisolía Program fellowship GRISOLIAP/2021/048. Monica Campanelli, Victor Estellés, Gaurav Kumar, Julian Gröbner, Stelios Kazadzis, Natalia Kouremeti, Angelos Karanikolas, Africa Barreto, Saulius Nevas, Kerstin Schwind, Philipp Schneider, Iiro Harju and Petri Kärhä would like to acknowledge the 19ENV04 MAPP project, funded by the EMPIR programme and co-financed by the participating states and the European Union’s Horizon 2020 research and innovation programme. This research has been supported by COST (European Cooperation in Science and Technology) under the HARMONIA (International network for harmonization of atmospheric aerosol retrievals from ground-based photometers) Action CA21119.
Förderinformationen (1) Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989
Förderer ID Typ: ISNI
Förderprogramm: EMPIR 2019 Environment
Titel der Förderung: 19ENV04: MAPP: Metrology for Aerosol Optical Properties
Förderungsnummer: 19ENV04
URI der Förderung: https://www.vsl.nl/en/projects/metrology-for-aerosol-optical-properties-mapp-19env04/

Zitierung

Campanelli, M., Estellés, V., Kumar, G., Nakajima, T., Momoi, M., Gröbner, J., Kazadzis, S., Kouremeti, N., Karanikolas, A., Barreto, A., Nevas, S., Schwind, K. M., Schneider, P., Harju, I., Kärhä, P., Diémoz, H., Kudo, R., Uchiyama, A., Yamazaki, A., Iannarelli, A. M., Mevi, G., Di Bernardino, A., & Casadio, S. (2024). Evaluation of on-site calibration procedures for SKYNET Prede POM sun–sky photometers. Atmospheric Measurement Techniques, 17(17), 5029–5050. https://doi.org/10.5194/amt-17-5029-2024

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