The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI
Abstract An analysis of ozone that is constrained only by observations of ultraviolet backscatter has an obvious limitation. These data are not available at night‐time. A system has been developed to exploit ozone information from infrared radiances measured by IASI which suffer no such sampling pro...
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Online Access: | http://dx.doi.org/10.1002/qj.708 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.708 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.708 |
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crwiley:10.1002/qj.708 2024-06-02T08:13:30+00:00 The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI Han, W. McNally, A. P. EUMETSAT NWP-SAF Visiting Scientist Program 2010 http://dx.doi.org/10.1002/qj.708 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.708 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.708 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 136, issue 653, page 2025-2037 ISSN 0035-9009 1477-870X journal-article 2010 crwiley https://doi.org/10.1002/qj.708 2024-05-03T10:38:08Z Abstract An analysis of ozone that is constrained only by observations of ultraviolet backscatter has an obvious limitation. These data are not available at night‐time. A system has been developed to exploit ozone information from infrared radiances measured by IASI which suffer no such sampling problems related to the position of the sun. It has been found that, relative to a baseline system that has no ozone observations, the use of IASI significantly improves the fit to independent ozone estimates from the Aura MLS. Indeed this improvement is, in some areas, comparable to or better than that obtained when more established ozone estimates from UV sensors are assimilated. One area where the assimilation of IASI is found to be clearly beneficial is in the winter high latitudes and southern polar night. Copyright © 2010 Royal Meteorological Society Article in Journal/Newspaper polar night Wiley Online Library Quarterly Journal of the Royal Meteorological Society 136 653 2025 2037 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract An analysis of ozone that is constrained only by observations of ultraviolet backscatter has an obvious limitation. These data are not available at night‐time. A system has been developed to exploit ozone information from infrared radiances measured by IASI which suffer no such sampling problems related to the position of the sun. It has been found that, relative to a baseline system that has no ozone observations, the use of IASI significantly improves the fit to independent ozone estimates from the Aura MLS. Indeed this improvement is, in some areas, comparable to or better than that obtained when more established ozone estimates from UV sensors are assimilated. One area where the assimilation of IASI is found to be clearly beneficial is in the winter high latitudes and southern polar night. Copyright © 2010 Royal Meteorological Society |
author2 |
EUMETSAT NWP-SAF Visiting Scientist Program |
format |
Article in Journal/Newspaper |
author |
Han, W. McNally, A. P. |
spellingShingle |
Han, W. McNally, A. P. The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
author_facet |
Han, W. McNally, A. P. |
author_sort |
Han, W. |
title |
The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
title_short |
The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
title_full |
The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
title_fullStr |
The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
title_full_unstemmed |
The 4D‐Var assimilation of ozone‐sensitive infrared radiances measured by IASI |
title_sort |
4d‐var assimilation of ozone‐sensitive infrared radiances measured by iasi |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/qj.708 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.708 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.708 |
genre |
polar night |
genre_facet |
polar night |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 136, issue 653, page 2025-2037 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.708 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
136 |
container_issue |
653 |
container_start_page |
2025 |
op_container_end_page |
2037 |
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1800737033152364544 |