Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium
We investigate the effects of solar forcing on the North Atlantic (NA) summer climate, in climate simulations with Earth System Models (ESMs), over the preindustrial past millennium (AD 850–1849). We use one simulation and a four-member ensemble performed with the MPI-ESM-P and CESM-LME models, resp...
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Online Access: | https://oceanrep.geomar.de/id/eprint/60349/ https://oceanrep.geomar.de/id/eprint/60349/1/atmosphere-12-00568.pdf https://doi.org/10.3390/atmos12050568 |
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ftoceanrep:oai:oceanrep.geomar.de:60349 2024-06-23T07:53:22+00:00 Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium Pyrina, Maria Moreno-Chamarro, Eduardo Wagner, Sebastian Zorita, Eduardo 2021 text https://oceanrep.geomar.de/id/eprint/60349/ https://oceanrep.geomar.de/id/eprint/60349/1/atmosphere-12-00568.pdf https://doi.org/10.3390/atmos12050568 en eng MDPI https://oceanrep.geomar.de/id/eprint/60349/1/atmosphere-12-00568.pdf Pyrina, M., Moreno-Chamarro, E., Wagner, S. and Zorita, E. (2021) Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium. Open Access Atmosphere, 12 (5). Art.Nr. 568. DOI 10.3390/atmos12050568 <https://doi.org/10.3390/atmos12050568>. doi:10.3390/atmos12050568 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.3390/atmos12050568 2024-06-04T14:22:41Z We investigate the effects of solar forcing on the North Atlantic (NA) summer climate, in climate simulations with Earth System Models (ESMs), over the preindustrial past millennium (AD 850–1849). We use one simulation and a four-member ensemble performed with the MPI-ESM-P and CESM-LME models, respectively, forced only by low-scaling variations in Total Solar Irradiance (TSI). We apply linear methods (correlation and regression) and composite analysis to estimate the NA surface and tropospheric climatic responses to decadal solar variability. Linear methods in the CESM ensemble indicate a weak summer response in sea-level pressure (SLP) and 500-hPa geopotential height to TSI, with decreased values over Greenland and increased values over the NA subtropics. Composite analysis indicates that, during high-TSI periods, SLP decreases over eastern Canada and the geopotential height at 500-hPa increases over the subtropical NA. The possible summer response of SSTs is overlapped by model internal variability. Therefore, for low-scaling TSI changes, state-of-the-art ESMs disagree on the NA surface climatic effect of solar forcing indicated by proxy-based studies during the preindustrial millennium. The analysis of control simulations indicates that, in all climatic variables studied, spurious patterns of apparent solar response may arise from the analysis of single model simulations. Article in Journal/Newspaper Greenland North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Canada Greenland Atmosphere 12 5 568 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We investigate the effects of solar forcing on the North Atlantic (NA) summer climate, in climate simulations with Earth System Models (ESMs), over the preindustrial past millennium (AD 850–1849). We use one simulation and a four-member ensemble performed with the MPI-ESM-P and CESM-LME models, respectively, forced only by low-scaling variations in Total Solar Irradiance (TSI). We apply linear methods (correlation and regression) and composite analysis to estimate the NA surface and tropospheric climatic responses to decadal solar variability. Linear methods in the CESM ensemble indicate a weak summer response in sea-level pressure (SLP) and 500-hPa geopotential height to TSI, with decreased values over Greenland and increased values over the NA subtropics. Composite analysis indicates that, during high-TSI periods, SLP decreases over eastern Canada and the geopotential height at 500-hPa increases over the subtropical NA. The possible summer response of SSTs is overlapped by model internal variability. Therefore, for low-scaling TSI changes, state-of-the-art ESMs disagree on the NA surface climatic effect of solar forcing indicated by proxy-based studies during the preindustrial millennium. The analysis of control simulations indicates that, in all climatic variables studied, spurious patterns of apparent solar response may arise from the analysis of single model simulations. |
format |
Article in Journal/Newspaper |
author |
Pyrina, Maria Moreno-Chamarro, Eduardo Wagner, Sebastian Zorita, Eduardo |
spellingShingle |
Pyrina, Maria Moreno-Chamarro, Eduardo Wagner, Sebastian Zorita, Eduardo Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
author_facet |
Pyrina, Maria Moreno-Chamarro, Eduardo Wagner, Sebastian Zorita, Eduardo |
author_sort |
Pyrina, Maria |
title |
Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
title_short |
Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
title_full |
Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
title_fullStr |
Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
title_full_unstemmed |
Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
title_sort |
surface and tropospheric response of north atlantic summer climate from paleoclimate simulations of the past millennium |
publisher |
MDPI |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/60349/ https://oceanrep.geomar.de/id/eprint/60349/1/atmosphere-12-00568.pdf https://doi.org/10.3390/atmos12050568 |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/60349/1/atmosphere-12-00568.pdf Pyrina, M., Moreno-Chamarro, E., Wagner, S. and Zorita, E. (2021) Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium. Open Access Atmosphere, 12 (5). Art.Nr. 568. DOI 10.3390/atmos12050568 <https://doi.org/10.3390/atmos12050568>. doi:10.3390/atmos12050568 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/atmos12050568 |
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Atmosphere |
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12 |
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5 |
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568 |
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1802644963749527552 |