Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust
The Lidar/Radiometer Inversion Code (LIRIC) combines the multiwavelength lidar technique with sun/sky photometry and allows us to retrieve vertical profiles of particle optical and microphysical properties separately for fine-mode and coarse-mode particles. After a brief presentation of the theoreti...
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ftdoajarticles:oai:doaj.org/article:6c018bf8f2504e5fbd02e61d21e77246 2023-05-15T16:09:36+02:00 Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust J. Wagner A. Ansmann U. Wandinger P. Seifert A. Schwarz M. Tesche A. Chaikovsky O. Dubovik 2013-07-01T00:00:00Z https://doi.org/10.5194/amt-6-1707-2013 https://doaj.org/article/6c018bf8f2504e5fbd02e61d21e77246 EN eng Copernicus Publications http://www.atmos-meas-tech.net/6/1707/2013/amt-6-1707-2013.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-6-1707-2013 1867-1381 1867-8548 https://doaj.org/article/6c018bf8f2504e5fbd02e61d21e77246 Atmospheric Measurement Techniques, Vol 6, Iss 7, Pp 1707-1724 (2013) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2013 ftdoajarticles https://doi.org/10.5194/amt-6-1707-2013 2022-12-31T14:05:56Z The Lidar/Radiometer Inversion Code (LIRIC) combines the multiwavelength lidar technique with sun/sky photometry and allows us to retrieve vertical profiles of particle optical and microphysical properties separately for fine-mode and coarse-mode particles. After a brief presentation of the theoretical background, we evaluate the potential of LIRIC to retrieve the optical and microphysical properties of irregularly shaped dust particles. The method is applied to two very different aerosol scenarios: a strong Saharan dust outbreak towards central Europe and an Eyjafjallajökull volcanic dust event. LIRIC profiles of particle mass concentrations for the coarse-mode as well as for the non-spherical particle fraction are compared with results for the non-spherical particle fraction as obtained with the polarization-lidar-based POLIPHON method. Similar comparisons for fine-mode and spherical particle fractions are presented also. Acceptable agreement between the different dust mass concentration profiles is obtained. LIRIC profiles of optical properties such as particle backscatter coefficient, lidar ratio, Ångström exponent, and particle depolarization ratio are compared with direct Raman lidar observations. Systematic deviations between the LIRIC retrieval products and the Raman lidar measurements of the desert dust lidar ratio, depolarization ratio, and spectral dependencies of particle backscatter and lidar ratio point to the applied spheroidal-particle model as main source for these uncertainties in the LIRIC results. Article in Journal/Newspaper Eyjafjallajökull Directory of Open Access Journals: DOAJ Articles Atmospheric Measurement Techniques 6 7 1707 1724 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
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Environmental engineering TA170-171 Earthwork. Foundations TA715-787 J. Wagner A. Ansmann U. Wandinger P. Seifert A. Schwarz M. Tesche A. Chaikovsky O. Dubovik Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
The Lidar/Radiometer Inversion Code (LIRIC) combines the multiwavelength lidar technique with sun/sky photometry and allows us to retrieve vertical profiles of particle optical and microphysical properties separately for fine-mode and coarse-mode particles. After a brief presentation of the theoretical background, we evaluate the potential of LIRIC to retrieve the optical and microphysical properties of irregularly shaped dust particles. The method is applied to two very different aerosol scenarios: a strong Saharan dust outbreak towards central Europe and an Eyjafjallajökull volcanic dust event. LIRIC profiles of particle mass concentrations for the coarse-mode as well as for the non-spherical particle fraction are compared with results for the non-spherical particle fraction as obtained with the polarization-lidar-based POLIPHON method. Similar comparisons for fine-mode and spherical particle fractions are presented also. Acceptable agreement between the different dust mass concentration profiles is obtained. LIRIC profiles of optical properties such as particle backscatter coefficient, lidar ratio, Ångström exponent, and particle depolarization ratio are compared with direct Raman lidar observations. Systematic deviations between the LIRIC retrieval products and the Raman lidar measurements of the desert dust lidar ratio, depolarization ratio, and spectral dependencies of particle backscatter and lidar ratio point to the applied spheroidal-particle model as main source for these uncertainties in the LIRIC results. |
format |
Article in Journal/Newspaper |
author |
J. Wagner A. Ansmann U. Wandinger P. Seifert A. Schwarz M. Tesche A. Chaikovsky O. Dubovik |
author_facet |
J. Wagner A. Ansmann U. Wandinger P. Seifert A. Schwarz M. Tesche A. Chaikovsky O. Dubovik |
author_sort |
J. Wagner |
title |
Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
title_short |
Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
title_full |
Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
title_fullStr |
Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
title_full_unstemmed |
Evaluation of the Lidar/Radiometer Inversion Code (LIRIC) to determine microphysical properties of volcanic and desert dust |
title_sort |
evaluation of the lidar/radiometer inversion code (liric) to determine microphysical properties of volcanic and desert dust |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/amt-6-1707-2013 https://doaj.org/article/6c018bf8f2504e5fbd02e61d21e77246 |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_source |
Atmospheric Measurement Techniques, Vol 6, Iss 7, Pp 1707-1724 (2013) |
op_relation |
http://www.atmos-meas-tech.net/6/1707/2013/amt-6-1707-2013.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-6-1707-2013 1867-1381 1867-8548 https://doaj.org/article/6c018bf8f2504e5fbd02e61d21e77246 |
op_doi |
https://doi.org/10.5194/amt-6-1707-2013 |
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Atmospheric Measurement Techniques |
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6 |
container_issue |
7 |
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1707 |
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1724 |
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1766405461575204864 |