A global observing‐system simulation experiment for the EPS–Sterna microwave constellation
Abstract A constellation of microwave sounders named the EUMETSAT Polar System–Sterna (EPS–Sterna) is under study at the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), with the aim of complementing the backbone orbits of the global observing system in low Earth o...
Published in: | Quarterly Journal of the Royal Meteorological Society |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/qj.4747 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4747 |
id |
crwiley:10.1002/qj.4747 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/qj.4747 2024-09-09T19:28:04+00:00 A global observing‐system simulation experiment for the EPS–Sterna microwave constellation Rivoire, Louis Marty, Robin Carrel‐Billiard, Thomas Chambon, Philippe Fourrié, Nadia Audouin, Olivier Martet, Maud Birman, Camille Accadia, Christophe Ackermann, Jörg European Organization for the Exploitation of Meteorological Satellites 2024 http://dx.doi.org/10.1002/qj.4747 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4747 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 150, issue 762, page 2991-3012 ISSN 0035-9009 1477-870X journal-article 2024 crwiley https://doi.org/10.1002/qj.4747 2024-08-09T04:25:13Z Abstract A constellation of microwave sounders named the EUMETSAT Polar System–Sterna (EPS–Sterna) is under study at the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), with the aim of complementing the backbone orbits of the global observing system in low Earth orbit. The satellites of this constellation would be similar to the Arctic Weather Satellite ( AWS ), which is being developed by the European Space Agency (ESA). The microwave sounder on board AWS is equipped with temperature sounding channels around the 50‐GHz oxygen absorption band, water‐vapour sounding channels around the 183‐ and 325‐GHz absorption bands, and also window channels at 89 and 165 GHz. An observing‐system simulation experiment (OSSE) has been conducted at the Centre National de Recherches Météorologiques (CNRM) to evaluate the impact of this constellation on numerical weather prediction (NWP) at the global scale with the Action de Recherche Petite Echelle Grande Echelle (ARPEGE) model. Two periods ranging from August–October 2021 and December 2021–February 2022 have been chosen to compute the nature run and to run 4D‐Var data assimilation experiments. As validation of the OSSE framework, the impact of a Metop‐B denial experiment in the OSSE is compared with the impact of a Metop‐B denial with real observations. This comparison shows that the Metop‐B denial impacts are very similar in the OSSE and with real observations, with the OSSE slightly overestimating the impact. Then, the impacts of various scenarios for the EPS–Sterna constellation are assessed by computing forecast errors, fractions skill scores, and moist global energy norms, and comparing these with the results of a baseline experiment without the EPS–Sterna constellation. Significant and positive improvements of the forecasts are found up to 96 h, for every variable tested, with an impact increasing with the number of satellites. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Quarterly Journal of the Royal Meteorological Society 150 762 2991 3012 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract A constellation of microwave sounders named the EUMETSAT Polar System–Sterna (EPS–Sterna) is under study at the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), with the aim of complementing the backbone orbits of the global observing system in low Earth orbit. The satellites of this constellation would be similar to the Arctic Weather Satellite ( AWS ), which is being developed by the European Space Agency (ESA). The microwave sounder on board AWS is equipped with temperature sounding channels around the 50‐GHz oxygen absorption band, water‐vapour sounding channels around the 183‐ and 325‐GHz absorption bands, and also window channels at 89 and 165 GHz. An observing‐system simulation experiment (OSSE) has been conducted at the Centre National de Recherches Météorologiques (CNRM) to evaluate the impact of this constellation on numerical weather prediction (NWP) at the global scale with the Action de Recherche Petite Echelle Grande Echelle (ARPEGE) model. Two periods ranging from August–October 2021 and December 2021–February 2022 have been chosen to compute the nature run and to run 4D‐Var data assimilation experiments. As validation of the OSSE framework, the impact of a Metop‐B denial experiment in the OSSE is compared with the impact of a Metop‐B denial with real observations. This comparison shows that the Metop‐B denial impacts are very similar in the OSSE and with real observations, with the OSSE slightly overestimating the impact. Then, the impacts of various scenarios for the EPS–Sterna constellation are assessed by computing forecast errors, fractions skill scores, and moist global energy norms, and comparing these with the results of a baseline experiment without the EPS–Sterna constellation. Significant and positive improvements of the forecasts are found up to 96 h, for every variable tested, with an impact increasing with the number of satellites. |
author2 |
European Organization for the Exploitation of Meteorological Satellites |
format |
Article in Journal/Newspaper |
author |
Rivoire, Louis Marty, Robin Carrel‐Billiard, Thomas Chambon, Philippe Fourrié, Nadia Audouin, Olivier Martet, Maud Birman, Camille Accadia, Christophe Ackermann, Jörg |
spellingShingle |
Rivoire, Louis Marty, Robin Carrel‐Billiard, Thomas Chambon, Philippe Fourrié, Nadia Audouin, Olivier Martet, Maud Birman, Camille Accadia, Christophe Ackermann, Jörg A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
author_facet |
Rivoire, Louis Marty, Robin Carrel‐Billiard, Thomas Chambon, Philippe Fourrié, Nadia Audouin, Olivier Martet, Maud Birman, Camille Accadia, Christophe Ackermann, Jörg |
author_sort |
Rivoire, Louis |
title |
A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
title_short |
A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
title_full |
A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
title_fullStr |
A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
title_full_unstemmed |
A global observing‐system simulation experiment for the EPS–Sterna microwave constellation |
title_sort |
global observing‐system simulation experiment for the eps–sterna microwave constellation |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/qj.4747 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4747 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 150, issue 762, page 2991-3012 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.4747 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
150 |
container_issue |
762 |
container_start_page |
2991 |
op_container_end_page |
3012 |
_version_ |
1809897347825532928 |