The impact of solar forcing on the variability in a coupled climate model
The impact of variations in solar irradiance on the variability of climate is still a topic of debate. Herein we assess the response of a coupled General Circulation Model (GCM) of intermediate complexity to an estimate of the solar variability since 1700 and to a series of idealized sinusoidal sola...
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ftsouthampton:oai:eprints.soton.ac.uk:352553 2023-07-30T04:05:25+02:00 The impact of solar forcing on the variability in a coupled climate model Haarsma, R.J. Drijfhout, S.S. Opsteegh, J.J. Selten, F.M. 2000-11 https://eprints.soton.ac.uk/352553/ English eng Haarsma, R.J., Drijfhout, S.S., Opsteegh, J.J. and Selten, F.M. (2000) The impact of solar forcing on the variability in a coupled climate model. Space Science Reviews, 94 (1-2), 287-294. (doi:10.1023/A:1026735726622 <http://dx.doi.org/10.1023/A:1026735726622>). Article PeerReviewed 2000 ftsouthampton https://doi.org/10.1023/A:1026735726622 2023-07-09T21:46:38Z The impact of variations in solar irradiance on the variability of climate is still a topic of debate. Herein we assess the response of a coupled General Circulation Model (GCM) of intermediate complexity to an estimate of the solar variability since 1700 and to a series of idealized sinusoidal solar forcings. On the continental to global scale and averaged over periods longer than 30 years, the solar-induced variability dominates internal variability in the annual global mean surface air temperature. Locally and on the regional scale, the internal variability dominates. The dominant patterns of natural variability and explained variance are not affected by a variable solar forcing, the spectra however are sensitive. The control run shows a preferred decadal time scale of 18 year in a sea surface temperature mode associated with the North Atlantic Oscillation. The preferred decadal time scale disappears for a variable solar forcing. This is caused by small changes in oceanic circulation resulting in subsurface oceanic modes with modified structure and time scale. Article in Journal/Newspaper North Atlantic North Atlantic oscillation University of Southampton: e-Prints Soton |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
The impact of variations in solar irradiance on the variability of climate is still a topic of debate. Herein we assess the response of a coupled General Circulation Model (GCM) of intermediate complexity to an estimate of the solar variability since 1700 and to a series of idealized sinusoidal solar forcings. On the continental to global scale and averaged over periods longer than 30 years, the solar-induced variability dominates internal variability in the annual global mean surface air temperature. Locally and on the regional scale, the internal variability dominates. The dominant patterns of natural variability and explained variance are not affected by a variable solar forcing, the spectra however are sensitive. The control run shows a preferred decadal time scale of 18 year in a sea surface temperature mode associated with the North Atlantic Oscillation. The preferred decadal time scale disappears for a variable solar forcing. This is caused by small changes in oceanic circulation resulting in subsurface oceanic modes with modified structure and time scale. |
format |
Article in Journal/Newspaper |
author |
Haarsma, R.J. Drijfhout, S.S. Opsteegh, J.J. Selten, F.M. |
spellingShingle |
Haarsma, R.J. Drijfhout, S.S. Opsteegh, J.J. Selten, F.M. The impact of solar forcing on the variability in a coupled climate model |
author_facet |
Haarsma, R.J. Drijfhout, S.S. Opsteegh, J.J. Selten, F.M. |
author_sort |
Haarsma, R.J. |
title |
The impact of solar forcing on the variability in a coupled climate model |
title_short |
The impact of solar forcing on the variability in a coupled climate model |
title_full |
The impact of solar forcing on the variability in a coupled climate model |
title_fullStr |
The impact of solar forcing on the variability in a coupled climate model |
title_full_unstemmed |
The impact of solar forcing on the variability in a coupled climate model |
title_sort |
impact of solar forcing on the variability in a coupled climate model |
publishDate |
2000 |
url |
https://eprints.soton.ac.uk/352553/ |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Haarsma, R.J., Drijfhout, S.S., Opsteegh, J.J. and Selten, F.M. (2000) The impact of solar forcing on the variability in a coupled climate model. Space Science Reviews, 94 (1-2), 287-294. (doi:10.1023/A:1026735726622 <http://dx.doi.org/10.1023/A:1026735726622>). |
op_doi |
https://doi.org/10.1023/A:1026735726622 |
_version_ |
1772817315112419328 |