Multiyear Typology of Long-Range Transported Aerosols over Europe
In this study, AERONET (Aerosol Robotic Network) and EARLINET (European Aerosol Research Lidar Network) data from 17 collocated lidar and sun photometer stations were used to characterize the optical properties of aerosol and their types for the 2008–2018 period in various regions of Europe. The ana...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/10/9/482 |
| _version_ | 1819211750154698752 |
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| author | Victor Nicolae Camelia Talianu Simona Andrei Bogdan Antonescu Dragoș Ene Doina Nicolae Alexandru Dandocsi Victorin-Emilian Toader Sabina Ștefan Tom Savu Jeni Vasilescu |
| author_facet | Victor Nicolae Camelia Talianu Simona Andrei Bogdan Antonescu Dragoș Ene Doina Nicolae Alexandru Dandocsi Victorin-Emilian Toader Sabina Ștefan Tom Savu Jeni Vasilescu |
| author_sort | Victor Nicolae |
| collection | DOAJ |
| description | In this study, AERONET (Aerosol Robotic Network) and EARLINET (European Aerosol Research Lidar Network) data from 17 collocated lidar and sun photometer stations were used to characterize the optical properties of aerosol and their types for the 2008–2018 period in various regions of Europe. The analysis was done on six cluster domains defined using circulation types around each station and their common circulation features. As concluded from the lidar photometer measurements, the typical aerosol particles observed during 2008–2018 over Europe were medium-sized, medium absorbing particles with low spectral dependence. The highest mean values for the lidar ratio at 532 nm were recorded over Northeastern Europe and were associated with Smoke particles, while the lowest mean values for the Angstrom exponent were identified over the Southwest cluster and were associated with Dust and Marine particles. Smoke (37%) and Continental (25%) aerosol types were the predominant aerosol types in Europe, followed by Continental Polluted (17%), Dust (10%), and Marine/Cloud (10%) types. The seasonal variability was insignificant at the continental scale, showing a small increase in the percentage of Smoke during spring and a small increase of Dust during autumn. The aerosol optical depth (AOD) slightly decreased with time, while the Angstrom exponent oscillated between “hot and smoky” years (2011–2015) on the one hand and “dusty” years (2008–2010) and “wet” years (2017–2018) on the other hand. The high variability from year to year showed that aerosol transport in the troposphere became more and more important in the overall balance of the columnar aerosol load. |
| first_indexed | 2024-12-23T06:32:02Z |
| format | Article |
| id | doaj.art-53103062a4c8414c81d7d6b2d09ac4b9 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-12-23T06:32:02Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-53103062a4c8414c81d7d6b2d09ac4b92022-12-21T17:56:53ZengMDPI AGAtmosphere2073-44332019-08-0110948210.3390/atmos10090482atmos10090482Multiyear Typology of Long-Range Transported Aerosols over EuropeVictor Nicolae0Camelia Talianu1Simona Andrei2Bogdan Antonescu3Dragoș Ene4Doina Nicolae5Alexandru Dandocsi6Victorin-Emilian Toader7Sabina Ștefan8Tom Savu9Jeni Vasilescu10National Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaNational Institute for Earth Physics, Calugareni 12, RO077125 Magurele, RomaniaFaculty of Physics, University of Bucharest, Atomistilor 405, RO77125 Magurele, RomaniaDOLSAT Consult, Al. Valea lui Mihai 2, sector 6, RO061756 București, RomaniaNational Institute of Research and Development for Optoelectronics INOE2000, Atomistilor 409, RO77125 Magurele, RomaniaIn this study, AERONET (Aerosol Robotic Network) and EARLINET (European Aerosol Research Lidar Network) data from 17 collocated lidar and sun photometer stations were used to characterize the optical properties of aerosol and their types for the 2008–2018 period in various regions of Europe. The analysis was done on six cluster domains defined using circulation types around each station and their common circulation features. As concluded from the lidar photometer measurements, the typical aerosol particles observed during 2008–2018 over Europe were medium-sized, medium absorbing particles with low spectral dependence. The highest mean values for the lidar ratio at 532 nm were recorded over Northeastern Europe and were associated with Smoke particles, while the lowest mean values for the Angstrom exponent were identified over the Southwest cluster and were associated with Dust and Marine particles. Smoke (37%) and Continental (25%) aerosol types were the predominant aerosol types in Europe, followed by Continental Polluted (17%), Dust (10%), and Marine/Cloud (10%) types. The seasonal variability was insignificant at the continental scale, showing a small increase in the percentage of Smoke during spring and a small increase of Dust during autumn. The aerosol optical depth (AOD) slightly decreased with time, while the Angstrom exponent oscillated between “hot and smoky” years (2011–2015) on the one hand and “dusty” years (2008–2010) and “wet” years (2017–2018) on the other hand. The high variability from year to year showed that aerosol transport in the troposphere became more and more important in the overall balance of the columnar aerosol load.https://www.mdpi.com/2073-4433/10/9/482aerosol typinglidarphotometryEARLINETAERONET |
| spellingShingle | Victor Nicolae Camelia Talianu Simona Andrei Bogdan Antonescu Dragoș Ene Doina Nicolae Alexandru Dandocsi Victorin-Emilian Toader Sabina Ștefan Tom Savu Jeni Vasilescu Multiyear Typology of Long-Range Transported Aerosols over Europe Atmosphere aerosol typing lidar photometry EARLINET AERONET |
| title | Multiyear Typology of Long-Range Transported Aerosols over Europe |
| title_full | Multiyear Typology of Long-Range Transported Aerosols over Europe |
| title_fullStr | Multiyear Typology of Long-Range Transported Aerosols over Europe |
| title_full_unstemmed | Multiyear Typology of Long-Range Transported Aerosols over Europe |
| title_short | Multiyear Typology of Long-Range Transported Aerosols over Europe |
| title_sort | multiyear typology of long range transported aerosols over europe |
| topic | aerosol typing lidar photometry EARLINET AERONET |
| url | https://www.mdpi.com/2073-4433/10/9/482 |
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