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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ftdoajarticles:oai:doaj.org/article:a4fc2cffb9f04353b7e1533e18d90c00 2023-05-15T16:09:34+02:00 Ash plume top height estimation using AATSR T. H. Virtanen P. Kolmonen E. Rodríguez L. Sogacheva A.-M. Sundström G. de Leeuw 2014-08-01T00:00:00Z https://doi.org/10.5194/amt-7-2437-2014 https://doaj.org/article/a4fc2cffb9f04353b7e1533e18d90c00 EN eng Copernicus Publications http://www.atmos-meas-tech.net/7/2437/2014/amt-7-2437-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-2437-2014 https://doaj.org/article/a4fc2cffb9f04353b7e1533e18d90c00 Atmospheric Measurement Techniques, Vol 7, Iss 8, Pp 2437-2456 (2014) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2014 ftdoajarticles https://doi.org/10.5194/amt-7-2437-2014 2022-12-31T00:39:13Z 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 Directory of Open Access Journals: DOAJ Articles Atmospheric Measurement Techniques 7 8 2437 2456 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 T. H. Virtanen P. Kolmonen E. Rodríguez L. Sogacheva A.-M. Sundström G. de Leeuw Ash plume top height estimation using AATSR |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
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 |
T. H. Virtanen P. Kolmonen E. Rodríguez L. Sogacheva A.-M. Sundström G. de Leeuw |
author_facet |
T. H. Virtanen P. Kolmonen E. Rodríguez L. Sogacheva A.-M. Sundström G. de Leeuw |
author_sort |
T. H. Virtanen |
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://doaj.org/article/a4fc2cffb9f04353b7e1533e18d90c00 |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_source |
Atmospheric Measurement Techniques, Vol 7, Iss 8, Pp 2437-2456 (2014) |
op_relation |
http://www.atmos-meas-tech.net/7/2437/2014/amt-7-2437-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-2437-2014 https://doaj.org/article/a4fc2cffb9f04353b7e1533e18d90c00 |
op_doi |
https://doi.org/10.5194/amt-7-2437-2014 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
7 |
container_issue |
8 |
container_start_page |
2437 |
op_container_end_page |
2456 |
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1766405431411867648 |