MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain
Multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the urban environment of Madrid, Spain, from March to September 2015. The O 4 absorption in the ultraviolet (UV) spectral region was used to retrieve the aerosol extinction profile using an inversion al...
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ftcopernicus:oai:publications.copernicus.org:amt50554 2023-05-15T13:06:07+02:00 MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain Wang, Shanshan Cuevas, Carlos A. Frieß, Udo Saiz-Lopez, Alfonso 2018-11-01 application/pdf https://doi.org/10.5194/amt-9-5089-2016 https://amt.copernicus.org/articles/9/5089/2016/ eng eng doi:10.5194/amt-9-5089-2016 https://amt.copernicus.org/articles/9/5089/2016/ eISSN: 1867-8548 Text 2018 ftcopernicus https://doi.org/10.5194/amt-9-5089-2016 2020-07-20T16:23:58Z Multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the urban environment of Madrid, Spain, from March to September 2015. The O 4 absorption in the ultraviolet (UV) spectral region was used to retrieve the aerosol extinction profile using an inversion algorithm. The results show a good agreement between the hourly retrieved aerosol optical depth (AOD) and the correlative Aerosol Robotic Network (AERONET) product, with a correlation coefficient of R = 0.87. Higher AODs are found in the summer season due to the more frequent occurrence of Saharan dust intrusions. The surface aerosol extinction coefficient as retrieved by the MAX-DOAS measurements was also compared to in situ PM 2.5 concentrations. The level of agreement between both measurements indicates that the MAX-DOAS retrieval has the ability to characterize the extinction of aerosol particles near the surface. The retrieval algorithm was also used to study a case of severe dust intrusion on 12 May 2015. The capability of the MAX-DOAS retrieval to recognize the dust event including an elevated particle layer is investigated along with air mass back-trajectory analysis. Text Aerosol Robotic Network Copernicus Publications: E-Journals Atmospheric Measurement Techniques 9 10 5089 5101 |
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Copernicus Publications: E-Journals |
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English |
description |
Multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the urban environment of Madrid, Spain, from March to September 2015. The O 4 absorption in the ultraviolet (UV) spectral region was used to retrieve the aerosol extinction profile using an inversion algorithm. The results show a good agreement between the hourly retrieved aerosol optical depth (AOD) and the correlative Aerosol Robotic Network (AERONET) product, with a correlation coefficient of R = 0.87. Higher AODs are found in the summer season due to the more frequent occurrence of Saharan dust intrusions. The surface aerosol extinction coefficient as retrieved by the MAX-DOAS measurements was also compared to in situ PM 2.5 concentrations. The level of agreement between both measurements indicates that the MAX-DOAS retrieval has the ability to characterize the extinction of aerosol particles near the surface. The retrieval algorithm was also used to study a case of severe dust intrusion on 12 May 2015. The capability of the MAX-DOAS retrieval to recognize the dust event including an elevated particle layer is investigated along with air mass back-trajectory analysis. |
format |
Text |
author |
Wang, Shanshan Cuevas, Carlos A. Frieß, Udo Saiz-Lopez, Alfonso |
spellingShingle |
Wang, Shanshan Cuevas, Carlos A. Frieß, Udo Saiz-Lopez, Alfonso MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
author_facet |
Wang, Shanshan Cuevas, Carlos A. Frieß, Udo Saiz-Lopez, Alfonso |
author_sort |
Wang, Shanshan |
title |
MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
title_short |
MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
title_full |
MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
title_fullStr |
MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
title_full_unstemmed |
MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain |
title_sort |
max-doas retrieval of aerosol extinction properties in madrid, spain |
publishDate |
2018 |
url |
https://doi.org/10.5194/amt-9-5089-2016 https://amt.copernicus.org/articles/9/5089/2016/ |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-9-5089-2016 https://amt.copernicus.org/articles/9/5089/2016/ |
op_doi |
https://doi.org/10.5194/amt-9-5089-2016 |
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Atmospheric Measurement Techniques |
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