A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations
We report on the retrieval of stratospheric aerosol particle size and extinction coefficient profiles from multi-color backscatter measurements with the Rayleigh-Mie-Raman lidar operated at the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR) in northern Norway. The retrievals are ba...
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ftleibnizopen:oai:oai.leibnizopen.de:vEGVhIgBdbrxVwz6jBkp 2023-06-18T03:39:35+02:00 A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations Zalach, Jacob von Savigny, Christian Langenbach, Arvid Baumgarten, Gerd Lübken, Franz-Josef Bourassa, Adam 2020 application/pdf https://oa.tib.eu/renate/handle/123456789/6523 https://doi.org/10.34657/5570 eng eng Basel, Switzerland : MDPI AG CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Atmosphere 11 (2020), Nr. 8 High latitude stratosphere Multi-wavelength lidar measurements Stratospheric aerosols 550 article Text 2020 ftleibnizopen https://doi.org/10.34657/5570 2023-06-04T23:20:46Z We report on the retrieval of stratospheric aerosol particle size and extinction coefficient profiles from multi-color backscatter measurements with the Rayleigh-Mie-Raman lidar operated at the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR) in northern Norway. The retrievals are based on a two-step approach. In a first step, the median radius of an assumed monomodal log-normal particle size distribution with fixed width is retrieved based on a color index formed from the measured backscatter ratios at the wavelengths of 1064nm and 532 nm. An intrinsic ambiguity of the retrieved aerosol size information is discussed. In a second step, this particle size information is used to convert the measured lidar backscatter ratio to aerosol extinction coefficients. The retrieval is currently based on monthly-averaged lidar measurements and the results for March 2013 are discussed. A sensitivity study is presented that allows for establishing an error budget for the aerosol retrievals. Assuming a monomodal log-normal aerosol particle size distribution with a geometric width of S = 1.5, median radii on the order of below 100 nm are retrieved. The median radii are found to generally decrease with increasing altitude. The retrieved aerosol extinction profiles are compared to observations with the OSIRIS (Optical Spectrograph and InfraRed Imager System) and the OMPS-LP (Ozone Mapping Profiling Suite Limb Profiler) satellite instruments in the 60° N to 80° N latitude band. The extinction profiles that were retrieved from the lidar measurements show good agreement with the observations of the two satellite instruments when taking the different wavelengths of the instruments into account. © 2020 by the authors. Leibniz_Fonds publishedVersion Article in Journal/Newspaper Arctic Northern Norway LeibnizOpen (The Leibniz Association) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Arctic Norway |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
High latitude stratosphere Multi-wavelength lidar measurements Stratospheric aerosols 550 |
spellingShingle |
High latitude stratosphere Multi-wavelength lidar measurements Stratospheric aerosols 550 Zalach, Jacob von Savigny, Christian Langenbach, Arvid Baumgarten, Gerd Lübken, Franz-Josef Bourassa, Adam A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
topic_facet |
High latitude stratosphere Multi-wavelength lidar measurements Stratospheric aerosols 550 |
description |
We report on the retrieval of stratospheric aerosol particle size and extinction coefficient profiles from multi-color backscatter measurements with the Rayleigh-Mie-Raman lidar operated at the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR) in northern Norway. The retrievals are based on a two-step approach. In a first step, the median radius of an assumed monomodal log-normal particle size distribution with fixed width is retrieved based on a color index formed from the measured backscatter ratios at the wavelengths of 1064nm and 532 nm. An intrinsic ambiguity of the retrieved aerosol size information is discussed. In a second step, this particle size information is used to convert the measured lidar backscatter ratio to aerosol extinction coefficients. The retrieval is currently based on monthly-averaged lidar measurements and the results for March 2013 are discussed. A sensitivity study is presented that allows for establishing an error budget for the aerosol retrievals. Assuming a monomodal log-normal aerosol particle size distribution with a geometric width of S = 1.5, median radii on the order of below 100 nm are retrieved. The median radii are found to generally decrease with increasing altitude. The retrieved aerosol extinction profiles are compared to observations with the OSIRIS (Optical Spectrograph and InfraRed Imager System) and the OMPS-LP (Ozone Mapping Profiling Suite Limb Profiler) satellite instruments in the 60° N to 80° N latitude band. The extinction profiles that were retrieved from the lidar measurements show good agreement with the observations of the two satellite instruments when taking the different wavelengths of the instruments into account. © 2020 by the authors. Leibniz_Fonds publishedVersion |
format |
Article in Journal/Newspaper |
author |
Zalach, Jacob von Savigny, Christian Langenbach, Arvid Baumgarten, Gerd Lübken, Franz-Josef Bourassa, Adam |
author_facet |
Zalach, Jacob von Savigny, Christian Langenbach, Arvid Baumgarten, Gerd Lübken, Franz-Josef Bourassa, Adam |
author_sort |
Zalach, Jacob |
title |
A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
title_short |
A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
title_full |
A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
title_fullStr |
A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
title_full_unstemmed |
A Method for Retrieving Stratospheric Aerosol Extinction and Particle Size from Ground-Based Rayleigh-Mie-Raman Lidar Observations |
title_sort |
method for retrieving stratospheric aerosol extinction and particle size from ground-based rayleigh-mie-raman lidar observations |
publisher |
Basel, Switzerland : MDPI AG |
publishDate |
2020 |
url |
https://oa.tib.eu/renate/handle/123456789/6523 https://doi.org/10.34657/5570 |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Alomar Arctic Norway |
geographic_facet |
Alomar Arctic Norway |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
Atmosphere 11 (2020), Nr. 8 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/5570 |
_version_ |
1769004309239824384 |