Title :

Combined sun-photometer-lidar inversion: lessons learned during the EARLINET/ACTRIS COVID-19 campaign

Author(s) :

Tsekeri, A. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Gialitaki, A. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Di Paolantonio, M. [Auteur]
Università degli studi della Basilicata = University of Basilicata [UNIBAS]
Dionisi, D. [Auteur]
Istituto di Science Marine [ISMAR ]
Liberti, G. L. [Auteur]
Istituto di Science Marine [ISMAR ]
Fernandes, A. [Auteur]
Institute of Geophysics [Warsaw]
Szkop, A. [Auteur]
Institute of Geophysics [Warsaw]
Pietruczuk, A. [Auteur]
Institute of Geophysics [Warsaw]
Pã©rez-Ramã­rez, D. [Auteur]
Universidad de Granada = University of Granada [UGR]
Muã±oz, M. J. G. [Auteur]
Universidad de Granada = University of Granada [UGR]
Guerrero-Rascado, J. L. [Auteur]
Universidad de Granada = University of Granada [UGR]
Alados-Arboledas, L. [Auteur]
Universidad de Granada = University of Granada [UGR]
Pantaleã³n, D. B. [Auteur]
Universidad de Granada = University of Granada [UGR]
Bravo-Aranda, J. A. [Auteur]
Universidad de Granada = University of Granada [UGR]
Kampouri, A. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Marinou, E. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Amiridis, V. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Sicard, M. [Auteur]
Laboratoire de l'Atmosphère et des Cyclones [LACy]
Comerã³n, A. [Auteur]
Department of Signal Theory and Communications [Barcelona] [TSC]
Muã±oz-Porcar, C. [Auteur]
Department of Signal Theory and Communications [Barcelona] [TSC]
Rodrã­guez-Gã³mez, A. [Auteur]
Department of Signal Theory and Communications [Barcelona] [TSC]
Romano, S. [Auteur]
Università del Salento = University of Salento [Lecce]
Perrone, M. R. [Auteur]
Università del Salento = University of Salento [Lecce]
Shang, X. X. [Auteur]
Finnish Meteorological Institute [FMI]
Komppula, M. [Auteur]
Finnish Meteorological Institute [FMI]
Mamouri, R. E. [Auteur]
National Technical University of Athens [Athens] [NTUA]
Nisantzi, A. [Auteur]
Cyprus University of Technology
Hadjimitsis, D. [Auteur]
Cyprus University of Technology
Navas-Guzmã¡n, F. [Auteur]
Federal Office of Meteorology and Climatology MeteoSwiss
Haefele, A. [Auteur]
Federal Office of Meteorology and Climatology MeteoSwiss
Szczepanik, D. [Auteur]
University of Warsaw [UW]
Tomczak, A. [Auteur]
University of Warsaw [UW]
Stachlewska, I. S. [Auteur]
University of Warsaw [UW]
Belegante, L. [Auteur]
National Institute of Research and Development for Optoelectronics [INOE]
Nicolae, D. [Auteur]
National Institute of Research and Development for Optoelectronics [INOE]
Voudouri, K. A. [Auteur]
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing [Penteli] [IAASARS]
Balis, D. [Auteur]
Aristotle University of Thessaloniki
Floutsi, A. A. [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Baars, H. [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Miladi, L. [Auteur]
interaction Clouds Aerosols Radiations - ICARE/AERIS Data and Services Center - UMS 2877 [ICARE]
Pascal, N. [Auteur]
interaction Clouds Aerosols Radiations - ICARE/AERIS Data and Services Center - UMS 2877 [ICARE]
Doubovik, Oleg [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Lopatin, A. [Auteur]

Journal title :

Atmos. Meas. Tech.

Abbreviated title :

Atmos. Meas. Tech.

Volume number :

16

Pages :

-

Publication date :

2024-03-23

ISSN :

1867-1381

English keyword(s) :

Algorithm
meteorological
GRASP
GARRLIC
AOD
AERONET
lidar
radiometer
aerosol
particles
atmospheric
photometer
uncertainties
inversion algorithm
combined data
properties
characteristics

HAL domain(s) :

Planète et Univers [physics]/Océan, Atmosphère

English abstract : [en]

The European Aerosol Research Lidar Network (EARLINET), part of the Aerosols, Clouds and Trace gases Research Infrastructure (ACTRIS), organized an intensive observational campaign in May 2020, with the objective of ...
Show more >The European Aerosol Research Lidar Network (EARLINET), part of the Aerosols, Clouds and Trace gases Research Infrastructure (ACTRIS), organized an intensive observational campaign in May 2020, with the objective of monitoring the atmospheric state over Europe during the COVID-19 lockdown and relaxation period. Besides the standard operational processing of the lidar data in EARLINET, for seven EARLINET sites having collocated sun-photometric observations in the Aerosol Robotic Network (AERONET), a network exercise was held in order to derive profiles of the concentration and effective column size distributions of the aerosols in the atmosphere, by applying the GRASP/GARRLiC (from Generalized Aerosol Retrieval from Radiometer and Lidar Combined data – GARRLiC – part of the Generalized Retrieval of Atmosphere and Surface Properties – GRASP) inversion algorithm. The objective of this network exercise was to explore the possibility of identifying the anthropogenic component and of monitoring its spatial and temporal characteristics in the COVID-19 lockdown and relaxation period. While the number of cases is far from being statistically significant so as to provide a conclusive description of the atmospheric aerosols over Europe during this period, this network exercise was fundamental to deriving a common methodology for applying GRASP/GARRLiC to a network of instruments with different characteristics. The limits of the approach are discussed, in particular the missing information close to the ground in the lidar measurements due to the instrument geometry and the sensitivity of the GRASP/GARRLiC retrieval to the settings used, especially for cases with low aerosol optical depth (AOD) like the ones we show here. We found that this sensitivity is well-characterized in the GRASP/GARRLiC products, since it is included in their retrieval uncertainties.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518

Submission date :

2024-05-06T22:22:35Z
2024-06-05T08:01:45Z