Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model

24 p.

Detalles Bibliográficos
Autores: Weber, Torsten, Cabos Narvaez, William David|||0000-0003-3638-6438, Sein, Dmitry V., Jacob, Daniela
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/62024
Acceso en línea:http://hdl.handle.net/10017/62024
https://dx.doi.org/10.1007/s00382-022-06329-7
Access Level:acceso abierto
Palabra clave:Regional climate modelling 
Atmosphere-ocean coupling 
Sea surface temperature bias 
Regional climate change 
Precipitation characteristics 
Africa
Física
Physics
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spelling Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean modelWeber, TorstenCabos Narvaez, William David|||0000-0003-3638-6438Sein, Dmitry V.Jacob, DanielaRegional climate modelling Atmosphere-ocean coupling Sea surface temperature bias Regional climate change Precipitation characteristics AfricaFísicaPhysics24 p.High-quality climate information at appropriate spatial and temporal resolution is essential to develop and provide tailored climate services for Africa. A common method to produce regional climate change data is to dynamically downscale global climate projections by means of regional climate models (RCMs). Deficiencies in the representation of the sea surface temperatures (SSTs) in earth system models (ESMs) and missing atmosphere–ocean interactions in RCMs contribute to the precipitation bias. This study analyzes the influence of the regional atmosphere–ocean coupling on simulated precipitation and its characteristics over Africa, and identifies those regions providing an added value using the regionally coupled atmosphere–ocean model ROM. For the analysis, the MPI-ESM-LR historical simulation and emission scenario RCP8.5 were dynamically downscaled with ROM at a spatial resolution of 0.22° × 0.22° for the whole African continent, including the tropical Atlantic and the Southwest Indian Ocean. The results show that reduced SST warm biases in both oceans lead to more realistic simulated precipitation over most coastal regions of Sub-Saharan Africa and over southern Africa to varying degrees depending on the season. In particular, the annual precipitation cycles over the coastal regions of the Atlantic Ocean are closer to observations. Moreover, total precipitation and extreme precipitation indices in the coupled historical simulation are significantly lower and more realistic compared to observations over the majority of the analyzed sub-regions. Finally, atmosphere–ocean coupling can amplify or attenuate climate change signals from precipitation indices or even change their sign in a regional climate projection.Projekt DEAL (Germany)20232023-02-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10017/62024https://dx.doi.org/10.1007/s00382-022-06329-7reponame:e_Buah Biblioteca Digital Universidad de Alcaláinstname:Universidad de Alcalá (UAH)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ebuah.uah.es:10017/620242026-06-18T11:13:07Z
dc.title.none.fl_str_mv Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
title Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
spellingShingle Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
Weber, Torsten
Regional climate modelling 
Atmosphere-ocean coupling 
Sea surface temperature bias 
Regional climate change 
Precipitation characteristics 
Africa
Física
Physics
title_short Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
title_full Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
title_fullStr Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
title_full_unstemmed Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
title_sort Benefits of simulating precipitation characteristics over Africa with a regionally-coupled atmosphere-ocean model
dc.creator.none.fl_str_mv Weber, Torsten
Cabos Narvaez, William David|||0000-0003-3638-6438
Sein, Dmitry V.
Jacob, Daniela
author Weber, Torsten
author_facet Weber, Torsten
Cabos Narvaez, William David|||0000-0003-3638-6438
Sein, Dmitry V.
Jacob, Daniela
author_role author
author2 Cabos Narvaez, William David|||0000-0003-3638-6438
Sein, Dmitry V.
Jacob, Daniela
author2_role author
author
author
dc.subject.none.fl_str_mv Regional climate modelling 
Atmosphere-ocean coupling 
Sea surface temperature bias 
Regional climate change 
Precipitation characteristics 
Africa
Física
Physics
topic Regional climate modelling 
Atmosphere-ocean coupling 
Sea surface temperature bias 
Regional climate change 
Precipitation characteristics 
Africa
Física
Physics
description 24 p.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-02-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10017/62024
https://dx.doi.org/10.1007/s00382-022-06329-7
url http://hdl.handle.net/10017/62024
https://dx.doi.org/10.1007/s00382-022-06329-7
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:e_Buah Biblioteca Digital Universidad de Alcalá
instname:Universidad de Alcalá (UAH)
instname_str Universidad de Alcalá (UAH)
reponame_str e_Buah Biblioteca Digital Universidad de Alcalá
collection e_Buah Biblioteca Digital Universidad de Alcalá
repository.name.fl_str_mv
repository.mail.fl_str_mv
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