Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project
This study investigates how teleconnections linking tropical rainfall anomalies and wintertime circulation in the northern extra-tropics are represented in historical simulations for the period 1950–2010 run by partners of the EU-funded PRIMAVERA project, following the HighResMIP protocol of CMIP6....
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Online Access: | http://hdl.handle.net/2117/327211 https://doi.org/10.1007/s00382-020-05358-4 |
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ftupcatalunyair:oai:upcommons.upc.edu:2117/327211 2024-09-09T19:58:08+00:00 Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project Molteni, Franco Roberts, Christopher D. Senan, Retish Keeley, Sarah P. E. Bellucci, Alessio Corti, Susanna Fuentes Franco, Ramon Haarsma, Rein Levine, Xavier Putrasahan, Dian Roberts, Malcolm J. Terray, Laurent Barcelona Supercomputing Center 2020 31 p. application/pdf http://hdl.handle.net/2117/327211 https://doi.org/10.1007/s00382-020-05358-4 eng eng Springer Link https://link.springer.com/article/10.1007/s00382-020-05358-4 info:eu-repo/grantAgreement/EC/H2020/641727/EU/PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment/PRIMAVERA Molteni, F. [et al.]. Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project. "Climate Dynamics", 2020, 1432-0894 http://hdl.handle.net/2117/327211 doi:10.1007/s00382-020-05358-4 Attribution 3.0 Spain Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/3.0/es/ https://creativecommons.org/licenses/by/4.0/ Open Access Àrees temàtiques de la UPC::Desenvolupament humà i sostenible Computer simulation Teleconnections (Climatology) Climatology Teleconnections Climate models CMIP6 HighResMIP Historical simulations Tropical rainfall Extratropical circulation Interdecadal variability Simulació per ordinador Climatologia Article 2020 ftupcatalunyair https://doi.org/10.1007/s00382-020-05358-4 2024-07-25T10:57:27Z This study investigates how teleconnections linking tropical rainfall anomalies and wintertime circulation in the northern extra-tropics are represented in historical simulations for the period 1950–2010 run by partners of the EU-funded PRIMAVERA project, following the HighResMIP protocol of CMIP6. The analysis focusses on teleconnections from the western/central Indian Ocean in mid-winter and from the NINO4 region in both the early and the late part of winter; this choice is justified by a substantial change in the relationship between ENSO and the North Atlantic Oscillation (NAO) in the two parts of the season. Model results for both coupled integrations and runs with prescribed sea-surface temperature (SST) are validated against data from the latest ECMWF 20th-century re-analysis, CERA20C. Simulations from six modelling groups are considered, comparing the impact of increasing atmospheric resolution in runs with prescribed SST, and of moving from uncoupled to coupled simulations in the high-resolution version of each model. Single runs were available for each model configurations at the time of writing, with one centre (ECMWF) also providing a 6-member ensemble. Results from this ensemble are compared with those of a 6-member multi-model ensemble (MME) formed by including one simulation from each model. Using only a single historical simulation from each model configuration, it is difficult to detect a consistent change in the fidelity of model-generated teleconnections when either atmospheric resolution is increased or ocean coupling is introduced. However, when simulations from six different models are pooled together in the MME, some improvements in teleconnection patterns can be seen when moving from uncoupled to coupled simulations. For the ECMWF ensemble, improvements in the coupled simulations are only apparent for the late-winter NINO4 teleconnection. While the Indian Ocean teleconnection and the late-winter NINO4 teleconnection appear equally robust in the re-analysis record, the latter is well ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge Indian Climate Dynamics 55 7-8 1843 1873 |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible Computer simulation Teleconnections (Climatology) Climatology Teleconnections Climate models CMIP6 HighResMIP Historical simulations Tropical rainfall Extratropical circulation Interdecadal variability Simulació per ordinador Climatologia |
spellingShingle |
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible Computer simulation Teleconnections (Climatology) Climatology Teleconnections Climate models CMIP6 HighResMIP Historical simulations Tropical rainfall Extratropical circulation Interdecadal variability Simulació per ordinador Climatologia Molteni, Franco Roberts, Christopher D. Senan, Retish Keeley, Sarah P. E. Bellucci, Alessio Corti, Susanna Fuentes Franco, Ramon Haarsma, Rein Levine, Xavier Putrasahan, Dian Roberts, Malcolm J. Terray, Laurent Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
topic_facet |
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible Computer simulation Teleconnections (Climatology) Climatology Teleconnections Climate models CMIP6 HighResMIP Historical simulations Tropical rainfall Extratropical circulation Interdecadal variability Simulació per ordinador Climatologia |
description |
This study investigates how teleconnections linking tropical rainfall anomalies and wintertime circulation in the northern extra-tropics are represented in historical simulations for the period 1950–2010 run by partners of the EU-funded PRIMAVERA project, following the HighResMIP protocol of CMIP6. The analysis focusses on teleconnections from the western/central Indian Ocean in mid-winter and from the NINO4 region in both the early and the late part of winter; this choice is justified by a substantial change in the relationship between ENSO and the North Atlantic Oscillation (NAO) in the two parts of the season. Model results for both coupled integrations and runs with prescribed sea-surface temperature (SST) are validated against data from the latest ECMWF 20th-century re-analysis, CERA20C. Simulations from six modelling groups are considered, comparing the impact of increasing atmospheric resolution in runs with prescribed SST, and of moving from uncoupled to coupled simulations in the high-resolution version of each model. Single runs were available for each model configurations at the time of writing, with one centre (ECMWF) also providing a 6-member ensemble. Results from this ensemble are compared with those of a 6-member multi-model ensemble (MME) formed by including one simulation from each model. Using only a single historical simulation from each model configuration, it is difficult to detect a consistent change in the fidelity of model-generated teleconnections when either atmospheric resolution is increased or ocean coupling is introduced. However, when simulations from six different models are pooled together in the MME, some improvements in teleconnection patterns can be seen when moving from uncoupled to coupled simulations. For the ECMWF ensemble, improvements in the coupled simulations are only apparent for the late-winter NINO4 teleconnection. While the Indian Ocean teleconnection and the late-winter NINO4 teleconnection appear equally robust in the re-analysis record, the latter is well ... |
author2 |
Barcelona Supercomputing Center |
format |
Article in Journal/Newspaper |
author |
Molteni, Franco Roberts, Christopher D. Senan, Retish Keeley, Sarah P. E. Bellucci, Alessio Corti, Susanna Fuentes Franco, Ramon Haarsma, Rein Levine, Xavier Putrasahan, Dian Roberts, Malcolm J. Terray, Laurent |
author_facet |
Molteni, Franco Roberts, Christopher D. Senan, Retish Keeley, Sarah P. E. Bellucci, Alessio Corti, Susanna Fuentes Franco, Ramon Haarsma, Rein Levine, Xavier Putrasahan, Dian Roberts, Malcolm J. Terray, Laurent |
author_sort |
Molteni, Franco |
title |
Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
title_short |
Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
title_full |
Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
title_fullStr |
Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
title_full_unstemmed |
Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project |
title_sort |
boreal‑winter teleconnections with tropical indo‑pacifc rainfall in highresmip historical simulations from the primavera project |
publisher |
Springer Link |
publishDate |
2020 |
url |
http://hdl.handle.net/2117/327211 https://doi.org/10.1007/s00382-020-05358-4 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://link.springer.com/article/10.1007/s00382-020-05358-4 info:eu-repo/grantAgreement/EC/H2020/641727/EU/PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment/PRIMAVERA Molteni, F. [et al.]. Boreal‑winter teleconnections with tropical Indo‑Pacifc rainfall in HighResMIP historical simulations from the PRIMAVERA project. "Climate Dynamics", 2020, 1432-0894 http://hdl.handle.net/2117/327211 doi:10.1007/s00382-020-05358-4 |
op_rights |
Attribution 3.0 Spain Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/3.0/es/ https://creativecommons.org/licenses/by/4.0/ Open Access |
op_doi |
https://doi.org/10.1007/s00382-020-05358-4 |
container_title |
Climate Dynamics |
container_volume |
55 |
container_issue |
7-8 |
container_start_page |
1843 |
op_container_end_page |
1873 |
_version_ |
1809929104151019520 |