Improved water vapour retrieval from AMSU-B and MHS in the Arctic
Monitoring of water vapour in the Arctic on long timescales is essential for predicting Arctic weather and understanding climate trends, as well as addressing its influence on the positive feedback loop contributing to Arctic amplification. However, this is challenged by the sparseness of in situ me...
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ftinstnastrofisi:oai:openaccess.inaf.it:20.500.12386/31364 2023-05-15T14:36:00+02:00 Improved water vapour retrieval from AMSU-B and MHS in the Arctic Arantxa M. Triana-Gómez Georg Heygster Christian Melsheimer Gunnar Spreen NEGUSINI, MONIA Boyan H. Petkov ITA DEU 2020 https://hdl.handle.net/20.500.12386/31364 https://doi.org/10.5194/amt-13-3697-2020 https://amt.copernicus.org/articles/13/3697/2020/ en eng ATMOSPHERIC MEASUREMENT TECHNIQUES 1867-1381 http://hdl.handle.net/20.500.12386/31364 doi:10.5194/amt-13-3697-2020 2-s2.0-85088922657 WOS:000550596600002 https://amt.copernicus.org/articles/13/3697/2020/ 2020AMT.13.3697 open Article 2020 ftinstnastrofisi https://doi.org/20.500.12386/31364 https://doi.org/10.5194/amt-13-3697-2020 2022-07-06T16:00:42Z Monitoring of water vapour in the Arctic on long timescales is essential for predicting Arctic weather and understanding climate trends, as well as addressing its influence on the positive feedback loop contributing to Arctic amplification. However, this is challenged by the sparseness of in situ measurements and the problems that standard remote sensing retrieval methods for water vapour have in Arctic conditions. Here, we present advances in a retrieval algorithm for vertically integrated water vapour (total water vapour, TWV) in polar regions from data of satellite-based microwave humidity sounders: (1) in addition to AMSU-B (Advanced Microwave Sounding Unit-B), we can now also use data from the successor instrument MHS (Microwave Humidity Sounder), and (2) artefacts caused by high cloud ice content in convective clouds are filtered out. Comparison to in situ measurements using GPS and radiosondes during 2008 and 2009, as well as to radiosondes during the NICE2015 campaign and to ERA5 reanalysis, show the overall good performance of the updated algorithm. Article in Journal/Newspaper Arctic OA@INAF (Istituto Nazionale di Astrofisica) Arctic |
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OA@INAF (Istituto Nazionale di Astrofisica) |
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language |
English |
description |
Monitoring of water vapour in the Arctic on long timescales is essential for predicting Arctic weather and understanding climate trends, as well as addressing its influence on the positive feedback loop contributing to Arctic amplification. However, this is challenged by the sparseness of in situ measurements and the problems that standard remote sensing retrieval methods for water vapour have in Arctic conditions. Here, we present advances in a retrieval algorithm for vertically integrated water vapour (total water vapour, TWV) in polar regions from data of satellite-based microwave humidity sounders: (1) in addition to AMSU-B (Advanced Microwave Sounding Unit-B), we can now also use data from the successor instrument MHS (Microwave Humidity Sounder), and (2) artefacts caused by high cloud ice content in convective clouds are filtered out. Comparison to in situ measurements using GPS and radiosondes during 2008 and 2009, as well as to radiosondes during the NICE2015 campaign and to ERA5 reanalysis, show the overall good performance of the updated algorithm. |
author2 |
ITA DEU |
format |
Article in Journal/Newspaper |
author |
Arantxa M. Triana-Gómez Georg Heygster Christian Melsheimer Gunnar Spreen NEGUSINI, MONIA Boyan H. Petkov |
spellingShingle |
Arantxa M. Triana-Gómez Georg Heygster Christian Melsheimer Gunnar Spreen NEGUSINI, MONIA Boyan H. Petkov Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
author_facet |
Arantxa M. Triana-Gómez Georg Heygster Christian Melsheimer Gunnar Spreen NEGUSINI, MONIA Boyan H. Petkov |
author_sort |
Arantxa M. Triana-Gómez |
title |
Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
title_short |
Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
title_full |
Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
title_fullStr |
Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
title_full_unstemmed |
Improved water vapour retrieval from AMSU-B and MHS in the Arctic |
title_sort |
improved water vapour retrieval from amsu-b and mhs in the arctic |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.12386/31364 https://doi.org/10.5194/amt-13-3697-2020 https://amt.copernicus.org/articles/13/3697/2020/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
ATMOSPHERIC MEASUREMENT TECHNIQUES 1867-1381 http://hdl.handle.net/20.500.12386/31364 doi:10.5194/amt-13-3697-2020 2-s2.0-85088922657 WOS:000550596600002 https://amt.copernicus.org/articles/13/3697/2020/ 2020AMT.13.3697 |
op_rights |
open |
op_doi |
https://doi.org/20.500.12386/31364 https://doi.org/10.5194/amt-13-3697-2020 |
_version_ |
1766308710484803584 |