Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model
cycles have been identified as two distinctive quasi-periodic components of Holocene solar activity. Evidence exists for the impact of such multi-decadal to centennial-scale variability in total solar irradiance (TSI) on climate, but concerning the ocean, this evidence is mainly restricted to the su...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.255.6292 2023-05-15T17:25:25+02:00 Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model Anne Seidenglanz Matthias Prange Vidya Varma Michael Schulz The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.255.6292 http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.255.6292 http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf wind belt (90-year forcing). Citation Seidenglanz A text ftciteseerx 2016-01-07T19:55:25Z cycles have been identified as two distinctive quasi-periodic components of Holocene solar activity. Evidence exists for the impact of such multi-decadal to centennial-scale variability in total solar irradiance (TSI) on climate, but concerning the ocean, this evidence is mainly restricted to the surface response. Here we use a comprehensive global climate model to study the impact of idealized solar forcing, representing the Gleissberg and de Vries cycles, on global ocean potential temperature at different depth levels, after a recent proxy record indicates a signal of TSI anomalies in the northeastern Atlantic at mid-depth. Potential impacts of TSI anomalies on deeper oceanic levels are climatically relevant due to their possible effect on ocean circulation by altering water mass characteristics. Simulated solar anomalies are shown to penetrate the ocean down to at least deepwater levels. Despite the fact that the two forcing periods differ only by a factor of 2, the spatial pattern of response is significantly distinctive between the experiments, suggesting different mechanisms for solar signal propagation. These are related to advection by North Atlantic Deep Water flow (200-year forcing), and barotropic adjustment in the South Atlantic in response to a latitudinal shift of the westerly Text North Atlantic Deep Water North Atlantic Unknown |
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wind belt (90-year forcing). Citation Seidenglanz A |
spellingShingle |
wind belt (90-year forcing). Citation Seidenglanz A Anne Seidenglanz Matthias Prange Vidya Varma Michael Schulz Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
topic_facet |
wind belt (90-year forcing). Citation Seidenglanz A |
description |
cycles have been identified as two distinctive quasi-periodic components of Holocene solar activity. Evidence exists for the impact of such multi-decadal to centennial-scale variability in total solar irradiance (TSI) on climate, but concerning the ocean, this evidence is mainly restricted to the surface response. Here we use a comprehensive global climate model to study the impact of idealized solar forcing, representing the Gleissberg and de Vries cycles, on global ocean potential temperature at different depth levels, after a recent proxy record indicates a signal of TSI anomalies in the northeastern Atlantic at mid-depth. Potential impacts of TSI anomalies on deeper oceanic levels are climatically relevant due to their possible effect on ocean circulation by altering water mass characteristics. Simulated solar anomalies are shown to penetrate the ocean down to at least deepwater levels. Despite the fact that the two forcing periods differ only by a factor of 2, the spatial pattern of response is significantly distinctive between the experiments, suggesting different mechanisms for solar signal propagation. These are related to advection by North Atlantic Deep Water flow (200-year forcing), and barotropic adjustment in the South Atlantic in response to a latitudinal shift of the westerly |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Anne Seidenglanz Matthias Prange Vidya Varma Michael Schulz |
author_facet |
Anne Seidenglanz Matthias Prange Vidya Varma Michael Schulz |
author_sort |
Anne Seidenglanz |
title |
Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
title_short |
Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
title_full |
Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
title_fullStr |
Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
title_full_unstemmed |
Ocean temperature response to idealized Gleissberg and de Vries solar cycles in a comprehensive climate model |
title_sort |
ocean temperature response to idealized gleissberg and de vries solar cycles in a comprehensive climate model |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.255.6292 http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf |
genre |
North Atlantic Deep Water North Atlantic |
genre_facet |
North Atlantic Deep Water North Atlantic |
op_source |
http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.255.6292 http://www.palmod.uni-bremen.de/%7Emprange/2012GL053624.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766116841302786048 |