Ash plume top height estimation using AATSR
An algorithm is presented for the estimation of volcanic ash plume top height using the stereo view of the Advanced Along Track Scanning Radiometer (AATSR) aboard Envisat. The algorithm is based on matching top of the atmosphere (TOA) reflectances and brightness temperatures of the nadir and 55° for...
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2014
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00019363 2023-05-15T16:09:34+02:00 Ash plume top height estimation using AATSR Virtanen, T. H. Kolmonen, P. Rodríguez, E. Sogacheva, L. Sundström, A.-M. de Leeuw, G. 2014-08 electronic https://doi.org/10.5194/amt-7-2437-2014 https://noa.gwlb.de/receive/cop_mods_00019363 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00019318/amt-7-2437-2014.pdf https://amt.copernicus.org/articles/7/2437/2014/amt-7-2437-2014.pdf eng eng Copernicus Publications Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-7-2437-2014 https://noa.gwlb.de/receive/cop_mods_00019363 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00019318/amt-7-2437-2014.pdf https://amt.copernicus.org/articles/7/2437/2014/amt-7-2437-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/amt-7-2437-2014 2022-02-08T22:52:41Z An algorithm is presented for the estimation of volcanic ash plume top height using the stereo view of the Advanced Along Track Scanning Radiometer (AATSR) aboard Envisat. The algorithm is based on matching top of the atmosphere (TOA) reflectances and brightness temperatures of the nadir and 55° forward views, and using the resulting parallax to obtain the height estimate. Various retrieval parameters are discussed in detail, several quality parameters are introduced, and post-processing methods for screening out unreliable data have been developed. The method is compared to other satellite observations and in situ data. The proposed algorithm is designed to be fully automatic and can be implemented in operational retrieval algorithms. Combined with automated ash detection using the brightness temperature difference between the 11 and 12 μm channels, the algorithm allows efficient simultaneous retrieval of the horizontal and vertical dispersion of volcanic ash. A case study on the eruption of the Icelandic volcano Eyjafjallajökull in 2010 is presented. Article in Journal/Newspaper Eyjafjallajökull Niedersächsisches Online-Archiv NOA Atmospheric Measurement Techniques 7 8 2437 2456 |
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article Verlagsveröffentlichung Virtanen, T. H. Kolmonen, P. Rodríguez, E. Sogacheva, L. Sundström, A.-M. de Leeuw, G. Ash plume top height estimation using AATSR |
topic_facet |
article Verlagsveröffentlichung |
description |
An algorithm is presented for the estimation of volcanic ash plume top height using the stereo view of the Advanced Along Track Scanning Radiometer (AATSR) aboard Envisat. The algorithm is based on matching top of the atmosphere (TOA) reflectances and brightness temperatures of the nadir and 55° forward views, and using the resulting parallax to obtain the height estimate. Various retrieval parameters are discussed in detail, several quality parameters are introduced, and post-processing methods for screening out unreliable data have been developed. The method is compared to other satellite observations and in situ data. The proposed algorithm is designed to be fully automatic and can be implemented in operational retrieval algorithms. Combined with automated ash detection using the brightness temperature difference between the 11 and 12 μm channels, the algorithm allows efficient simultaneous retrieval of the horizontal and vertical dispersion of volcanic ash. A case study on the eruption of the Icelandic volcano Eyjafjallajökull in 2010 is presented. |
format |
Article in Journal/Newspaper |
author |
Virtanen, T. H. Kolmonen, P. Rodríguez, E. Sogacheva, L. Sundström, A.-M. de Leeuw, G. |
author_facet |
Virtanen, T. H. Kolmonen, P. Rodríguez, E. Sogacheva, L. Sundström, A.-M. de Leeuw, G. |
author_sort |
Virtanen, T. H. |
title |
Ash plume top height estimation using AATSR |
title_short |
Ash plume top height estimation using AATSR |
title_full |
Ash plume top height estimation using AATSR |
title_fullStr |
Ash plume top height estimation using AATSR |
title_full_unstemmed |
Ash plume top height estimation using AATSR |
title_sort |
ash plume top height estimation using aatsr |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/amt-7-2437-2014 https://noa.gwlb.de/receive/cop_mods_00019363 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00019318/amt-7-2437-2014.pdf https://amt.copernicus.org/articles/7/2437/2014/amt-7-2437-2014.pdf |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_relation |
Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-7-2437-2014 https://noa.gwlb.de/receive/cop_mods_00019363 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00019318/amt-7-2437-2014.pdf https://amt.copernicus.org/articles/7/2437/2014/amt-7-2437-2014.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/amt-7-2437-2014 |
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2456 |
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