Backscatter measurements of stratospheric aerosols at Thule during January-February 1992
Within the European Arctic Stratospheric Ozone Experiment (EASOE) aerosols from the volcanic eruption of Mt. Pinatubo have been observed during 6 balloonborne backscatter soundings in January and February 1992 under different polar vortex conditions from Thule, Greenland. The vortex boundary seemed...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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1994
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Online Access: | http://hdl.handle.net/11563/2165 https://doi.org/10.1029/93GL02896 |
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ftunivbasilicata:oai:iris.unibas.it:11563/2165 2024-04-14T08:07:46+00:00 Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 LARSEN N B. KNUDSEN T. S. JOERGENSEN A. DI SARRA D. FUÀ G. FIOCCO M. CACCIANI J. M. ROSEN N. KJOME DI GIROLAMO, Paolo Larsen, N B., Knudsen T. S., Joergensen A., DI SARRA D., Fuà DI GIROLAMO, Paolo G., Fiocco M., Cacciani J. M., Rosen N., Kjome 1994 http://hdl.handle.net/11563/2165 https://doi.org/10.1029/93GL02896 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:A1994NW30100030 volume:21 issue:13 firstpage:1303 lastpage:1306 numberofpages:4 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11563/2165 doi:10.1029/93GL02896 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0001237937 info:eu-repo/semantics/closedAccess info:eu-repo/semantics/article 1994 ftunivbasilicata https://doi.org/10.1029/93GL02896 2024-03-21T17:31:42Z Within the European Arctic Stratospheric Ozone Experiment (EASOE) aerosols from the volcanic eruption of Mt. Pinatubo have been observed during 6 balloonborne backscatter soundings in January and February 1992 under different polar vortex conditions from Thule, Greenland. The vortex boundary seemed to retard stratospheric aerosol mixing into the inner parts of the vortex from lower latitudes; however, when Thule was outside the vortex large aerosol loadings were measured. The aerosols were simultaneously observed by groundbased lidar, whereby aerosol backscatter measurements in three different wavelengths made it possible to obtain information about the particle sizes. Parameters of lognormal distributions have been derived, using a least square approach between observed and calculated backscatter coefficients from Mie theory. The aerosol surface area density was increased by factors 10–50, compared to the background levels at pre‐volcanic conditions. Article in Journal/Newspaper Arctic Greenland Thule Università degli Studi della Basilicata: CINECA IRIS Arctic Greenland Geophysical Research Letters 21 13 1303 1306 |
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Open Polar |
collection |
Università degli Studi della Basilicata: CINECA IRIS |
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ftunivbasilicata |
language |
English |
description |
Within the European Arctic Stratospheric Ozone Experiment (EASOE) aerosols from the volcanic eruption of Mt. Pinatubo have been observed during 6 balloonborne backscatter soundings in January and February 1992 under different polar vortex conditions from Thule, Greenland. The vortex boundary seemed to retard stratospheric aerosol mixing into the inner parts of the vortex from lower latitudes; however, when Thule was outside the vortex large aerosol loadings were measured. The aerosols were simultaneously observed by groundbased lidar, whereby aerosol backscatter measurements in three different wavelengths made it possible to obtain information about the particle sizes. Parameters of lognormal distributions have been derived, using a least square approach between observed and calculated backscatter coefficients from Mie theory. The aerosol surface area density was increased by factors 10–50, compared to the background levels at pre‐volcanic conditions. |
author2 |
Larsen, N B., Knudsen T. S., Joergensen A., DI SARRA D., Fuà DI GIROLAMO, Paolo G., Fiocco M., Cacciani J. M., Rosen N., Kjome |
format |
Article in Journal/Newspaper |
author |
LARSEN N B. KNUDSEN T. S. JOERGENSEN A. DI SARRA D. FUÀ G. FIOCCO M. CACCIANI J. M. ROSEN N. KJOME DI GIROLAMO, Paolo |
spellingShingle |
LARSEN N B. KNUDSEN T. S. JOERGENSEN A. DI SARRA D. FUÀ G. FIOCCO M. CACCIANI J. M. ROSEN N. KJOME DI GIROLAMO, Paolo Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
author_facet |
LARSEN N B. KNUDSEN T. S. JOERGENSEN A. DI SARRA D. FUÀ G. FIOCCO M. CACCIANI J. M. ROSEN N. KJOME DI GIROLAMO, Paolo |
author_sort |
LARSEN N |
title |
Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
title_short |
Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
title_full |
Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
title_fullStr |
Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
title_full_unstemmed |
Backscatter measurements of stratospheric aerosols at Thule during January-February 1992 |
title_sort |
backscatter measurements of stratospheric aerosols at thule during january-february 1992 |
publishDate |
1994 |
url |
http://hdl.handle.net/11563/2165 https://doi.org/10.1029/93GL02896 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Thule |
genre_facet |
Arctic Greenland Thule |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:A1994NW30100030 volume:21 issue:13 firstpage:1303 lastpage:1306 numberofpages:4 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11563/2165 doi:10.1029/93GL02896 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0001237937 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1029/93GL02896 |
container_title |
Geophysical Research Letters |
container_volume |
21 |
container_issue |
13 |
container_start_page |
1303 |
op_container_end_page |
1306 |
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1796305175452844032 |