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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ftmdpi:oai:mdpi.com:/2073-4433/12/5/568/ 2023-08-20T04:06:56+02:00 Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium Maria Pyrina Eduardo Moreno-Chamarro Sebastian Wagner Eduardo Zorita agris 2021-04-28 application/pdf https://doi.org/10.3390/atmos12050568 EN eng Multidisciplinary Digital Publishing Institute Upper Atmosphere https://dx.doi.org/10.3390/atmos12050568 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 12; Issue 5; Pages: 568 TSI solar forcing last millennium paleoclimate simulations CESM-LME North Atlantic surface climatic response Text 2021 ftmdpi https://doi.org/10.3390/atmos12050568 2023-08-01T01:36:31Z 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. Text Greenland North Atlantic MDPI Open Access Publishing Canada Greenland Atmosphere 12 5 568 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
TSI solar forcing last millennium paleoclimate simulations CESM-LME North Atlantic surface climatic response |
spellingShingle |
TSI solar forcing last millennium paleoclimate simulations CESM-LME North Atlantic surface climatic response Maria Pyrina Eduardo Moreno-Chamarro Sebastian Wagner Eduardo Zorita Surface and Tropospheric Response of North Atlantic Summer Climate from Paleoclimate Simulations of the Past Millennium |
topic_facet |
TSI solar forcing last millennium paleoclimate simulations CESM-LME North Atlantic surface climatic response |
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 |
Text |
author |
Maria Pyrina Eduardo Moreno-Chamarro Sebastian Wagner Eduardo Zorita |
author_facet |
Maria Pyrina Eduardo Moreno-Chamarro Sebastian Wagner Eduardo Zorita |
author_sort |
Maria Pyrina |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/atmos12050568 |
op_coverage |
agris |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Atmosphere; Volume 12; Issue 5; Pages: 568 |
op_relation |
Upper Atmosphere https://dx.doi.org/10.3390/atmos12050568 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos12050568 |
container_title |
Atmosphere |
container_volume |
12 |
container_issue |
5 |
container_start_page |
568 |
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1774718316980469760 |