Aerosol optical depth in the European Brewer Network

López-Solano, J.; Redondas, Alberto; Carlund, Thomas; Rodriguez-Franco, Juan J.; Diémoz, Henri; León-Luis, Sergio F.; Hernández-Cruz, Bentorey; Guirado-Fuentes, Carmen; Kouremeti, Natalia; Gröbner, Julian; Kazadzis, Stelios; Carreño, Virgilio; Berjón, A.; Santana-Díaz, Daniel; Valido, M. Rodríguez; Bock, Veerle De; Moreta, Juan R.; Rimmer, John; Boulkelia, Lamine; Jepsen, Nis; Eriksen, P.; Bais, A. F.; Shirotov, V. V.; Vilaplana, José Manuel; Wilson, Keith; Karppinen, Tomi

doi:10.5194/acp-2017-1003

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Lidar systems are ideal when the vertical distribution is being investigated. Passive remote sensing instruments are also broadly used in order to examine the columnar aerosol properties (Dubovik and King, 2000;Hönninger et al, 2004;Schneider et al, 2008;Herman et al, 2017;López-Solano et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Are EARLINET and AERONET climatologies consistent? The case of Thessaloniki, Greece

Σιώμος¹,

Balis²,

Voudouri³

et al. 2018

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Abstract. In this study we investigate the climatological behavior of the aerosol optical properties over Thessaloniki during the years [2003][2004][2005][2006][2007][2008][2009][2010][2011][2012][2013][2014][2015][2016][2017]. For this purpose, measurements of two independent instruments, a lidar and a sunphotomer, were deployed.These two instruments represent two individual networks, the European Lidar Aerosol Network (EARLINET) and the Aerosol Robotic Network (AERONET). They include different measurement schedules. Fourteen years of lidar and sunphotometer measurements were analyzed in order to obtain the annual cycles and trends of multiple optical and geometrical aerosol 5 properties in the boundary layer, in the free troposphere and for the whole atmospheric column. The analysis resulted in consistent statistically significant and decreasing AOD 355nm trends of -21.0% and -16.6% per decade in the study period over Thessaloniki for the EARLINET and the AERONET datasets respectively. Therefore, the analysis implies that the EARLINET sampling schedule can be quite effective in producing data that can be applied to climatological studies. It has also been confirmed that the observed decreasing trend is mainly attributed to changes in the aerosol properties inside the boundary 10 layer. Seasonal profiles of the most dominant aerosol mixture types have been generated from the lidar data. The higher values of the extinction at 355nm appear in summer, while the lower ones appear in winter. The dust component is much more dominant in the free troposphere than in the boundary layer during summer, while the opposite is observed in winter. The strongest biomass burning episodes tend to occur during summer in the free troposphere and are probably attributed to wildfires rather than agricultural fires that are predominant during spring and autumn. This kind of information can be quite useful for 15 applications that require a priori aerosol profiles. For instance, they can be utilized in models that require aerosol climatological data as input, in the development of algorithms for satellite products, and also in passive remote sensing techniques that require knowledge of the aerosol vertical distribution.1 Atmos. Chem. Phys. Discuss., https://doi

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Section: Introductionmentioning

confidence: 99%

Are EARLINET and AERONET climatologies consistent? The case of Thessaloniki, Greece

Σιώμος¹,

Balis²,

Voudouri³

et al. 2018

Preprint

View full text Add to dashboard Cite

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“…Lidar systems are ideal when the vertical distribution is being investigated (e.g., Klett, 1981;She et al, 1992;Ansmann et al, 1992;Welton et al, 2001;Hirsikko et al, 2013). Passive remote sensing instruments are also broadly used in order to examine the columnar aerosol properties (e.g., Dubovik and King, 2000;Hönninger, Friedeburg, and Platt, 2004;Schneider et al, 2008;Herman et al, 2017;López-Solano et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Climatology and classification of the optical and microphysical properties of aerosols using ground-based remote sensing techniques

Σιώμος¹

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Στη διατριβή αυτή μελετήθηκε η κλιματολογία και η ταξινόμηση των οπτικών και μικροφυσικών ιδιοτήτων των αιωρούμενων σωματιδίων με τη χρήση μεθόδων επίγειας τηλεπισκόπησης. Οι τεχνικές αυτές περιλαμβάνουν κατά βάση μία διάταξη lidar και ένα φωτόμετρο. Αν και η ανάλυση στο μεγαλύτερό της μέρος αφορά μετρήσεις του εργαστηρίου Φυσικής της Ατμόσφαιρας στην Θεσσαλονίκη, εντούτοις, στο πλαίσιο της διατριβής αξιοποιήθηκαν επίσης μετρήσεις του Ευρωπαϊκού δικτύου των lidar, European Lidar Network (EARLINET). Η ανάλυση συνοψίζεται σε τέσσερις κύριες θεματολογίες. Αρχικά, γίνεται παρουσίαση των διεργασιών συντήρησης και βελτιστοποίησης ενός συστήματος depolarization Raman lidar. Στη συνέχεια, περιγράφονται εκτενώς η μεθοδολογία και τα αποτελέσματα της κλιματολογικής ανάλυσης των μετρήσεων της χρονοσειράς του lidar και του φωτόμετρου στην περιοχή της Θεσσαλονίκης. Επιπρόσθετα, γίνεται υπολογισμός κάποιων μικροφυσικών ιδιοτήτων των αεροζόλ με τη συνδυαστική χρήση των δύο οργάνων και τα αποτελέσματα χρησιμοποιούνται για την αξιολόγηση ενός μοντέλου ποιότητας αέρα στην περιοχή της Θεσσαλονίκης. Τέλος, κάποια από τα προϊόντα τα οποία προέκυψαν από την ανάλυση, μαζί με μετρήσεις της βάσης δεδομένων του EARLINET αξιοποιήθηκαν στην αξιολόγηση δορυφορικών παρατηρήσεων.

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Aerosol optical depth in the European Brewer Network

Cited by 2 publications

References 12 publications

Are EARLINET and AERONET climatologies consistent? The case of Thessaloniki, Greece

Are EARLINET and AERONET climatologies consistent? The case of Thessaloniki, Greece

Climatology and classification of the optical and microphysical properties of aerosols using ground-based remote sensing techniques

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