Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis
As part of the European Space Agency's Climate Change Initiative, new sets of satellite observation products have been produced for essential climate variables including ocean colour, sea surface temperature, sea level, and sea ice. These new products have been assimilated into a global physica...
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ftarchimer:oai:archimer.ifremer.fr:78833 2023-05-15T18:17:44+02:00 Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis Ford, David Andrew 2020-07 application/pdf https://archimer.ifremer.fr/doc/00676/78833/81106.pdf https://archimer.ifremer.fr/doc/00676/78833/81107.pdf https://doi.org/10.5194/os-16-875-2020 https://archimer.ifremer.fr/doc/00676/78833/ eng eng Copernicus Gesellschaft Mbh https://archimer.ifremer.fr/doc/00676/78833/81106.pdf https://archimer.ifremer.fr/doc/00676/78833/81107.pdf doi:10.5194/os-16-875-2020 https://archimer.ifremer.fr/doc/00676/78833/ info:eu-repo/semantics/openAccess restricted use Ocean Science (1812-0784) (Copernicus Gesellschaft Mbh), 2020-07 , Vol. 16 , N. 4 , P. 875-893 text Publication info:eu-repo/semantics/article 2020 ftarchimer https://doi.org/10.5194/os-16-875-2020 2021-09-23T20:36:55Z As part of the European Space Agency's Climate Change Initiative, new sets of satellite observation products have been produced for essential climate variables including ocean colour, sea surface temperature, sea level, and sea ice. These new products have been assimilated into a global physical-biogeochemical ocean model to create a set of 13year reanalyses at 1 degrees resolution and 3-year reanalyses at 1/4 degrees resolution. In a series of experiments, the variables were assimilated individually and in combination in order to assess their consistency from a data assimilation perspective. The satellite products, and the reanalyses assimilating them, were found to be consistent in their representation of spatial features such as fronts, sea ice extent, and bloom activity. Assimilating multiple variables together often resulted in larger mean increments for a variable than assimilating it individually, providing information about model biases and compensating errors which could be addressed in the future development of the model and assimilation scheme. Sea surface fugacity of carbon dioxide had lower errors against independent observations in the higher-resolution simulations and was improved by assimilating ocean colour or sea ice concentration, but it was degraded by assimilating sea surface temperature or sea level anomaly. Phytoplankton biomass correlated more strongly with net air-sea heat fluxes in the reanalyses than chlorophyll concentration did, and the correlation was weakened by assimilating ocean colour data, suggesting that studies of phytoplankton bloom initiation based solely on chlorophyll data may not provide a full understanding of the underlying processes. This licence does not affect the Crown copyright work, which is re-usable under the Open Government Licence (OGL). The Creative Commons Attribution 4.0 License and the OGL are interoperable and do not conflict with, reduce or limit each other. Article in Journal/Newspaper Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Ocean Science 16 4 875 893 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
As part of the European Space Agency's Climate Change Initiative, new sets of satellite observation products have been produced for essential climate variables including ocean colour, sea surface temperature, sea level, and sea ice. These new products have been assimilated into a global physical-biogeochemical ocean model to create a set of 13year reanalyses at 1 degrees resolution and 3-year reanalyses at 1/4 degrees resolution. In a series of experiments, the variables were assimilated individually and in combination in order to assess their consistency from a data assimilation perspective. The satellite products, and the reanalyses assimilating them, were found to be consistent in their representation of spatial features such as fronts, sea ice extent, and bloom activity. Assimilating multiple variables together often resulted in larger mean increments for a variable than assimilating it individually, providing information about model biases and compensating errors which could be addressed in the future development of the model and assimilation scheme. Sea surface fugacity of carbon dioxide had lower errors against independent observations in the higher-resolution simulations and was improved by assimilating ocean colour or sea ice concentration, but it was degraded by assimilating sea surface temperature or sea level anomaly. Phytoplankton biomass correlated more strongly with net air-sea heat fluxes in the reanalyses than chlorophyll concentration did, and the correlation was weakened by assimilating ocean colour data, suggesting that studies of phytoplankton bloom initiation based solely on chlorophyll data may not provide a full understanding of the underlying processes. This licence does not affect the Crown copyright work, which is re-usable under the Open Government Licence (OGL). The Creative Commons Attribution 4.0 License and the OGL are interoperable and do not conflict with, reduce or limit each other. |
format |
Article in Journal/Newspaper |
author |
Ford, David Andrew |
spellingShingle |
Ford, David Andrew Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
author_facet |
Ford, David Andrew |
author_sort |
Ford, David Andrew |
title |
Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
title_short |
Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
title_full |
Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
title_fullStr |
Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
title_full_unstemmed |
Assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
title_sort |
assessing the role and consistency of satellite observation products in global physical-biogeochemical ocean reanalysis |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2020 |
url |
https://archimer.ifremer.fr/doc/00676/78833/81106.pdf https://archimer.ifremer.fr/doc/00676/78833/81107.pdf https://doi.org/10.5194/os-16-875-2020 https://archimer.ifremer.fr/doc/00676/78833/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Ocean Science (1812-0784) (Copernicus Gesellschaft Mbh), 2020-07 , Vol. 16 , N. 4 , P. 875-893 |
op_relation |
https://archimer.ifremer.fr/doc/00676/78833/81106.pdf https://archimer.ifremer.fr/doc/00676/78833/81107.pdf doi:10.5194/os-16-875-2020 https://archimer.ifremer.fr/doc/00676/78833/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.5194/os-16-875-2020 |
container_title |
Ocean Science |
container_volume |
16 |
container_issue |
4 |
container_start_page |
875 |
op_container_end_page |
893 |
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