Quantifying and specifying the solar influence on terrestrial surface temperature
This investigation is a follow-up of a paper in which we showed that both major magnetic components of the solar dynamo, viz. the toroidal and the poloidal ones, are correlated with average terrestrial surface temperatures. Here, we quantify, improve and specify that result and search for their caus...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_13646826_v72_n13_p926_deJager |
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todo:paper_13646826_v72_n13_p926_deJager2023-10-03T16:11:16Z Quantifying and specifying the solar influence on terrestrial surface temperature de Jager, C. Duhau, S. van Geel, B. Global temperature variation Solar cycles Solar dynamo Solar magnetism Solar variability Sun Forcings Global temperatures Ground temperature Holocenes Internal modes Magnetic components Magnetic field components Residual temperature Solar cycle Solar dynamo Solar forcing Solar influence Solar variability Temperature gradient Terrestrial surface Total solar irradiance Water vapour Weighted residuals Atmospheric temperature Interactive devices Magnetic fields Magnetic materials Surface properties Temperature distribution Electric generators This investigation is a follow-up of a paper in which we showed that both major magnetic components of the solar dynamo, viz. the toroidal and the poloidal ones, are correlated with average terrestrial surface temperatures. Here, we quantify, improve and specify that result and search for their causes. We studied seven recent temperature files. They were smoothed in order to eliminate the Schwabe-type (11 years) variations. While the total temperature gradient over the period of investigation (1610-1970) is 0.087 °C/century; a gradient of 0.077 °C/century is correlated with the equatorial (toroidal) magnetic field component. Half of it is explained by the increase of the Total Solar Irradiance over the period of investigation, while the other half is due to feedback by evaporated water vapour. A yet unexplained gradient of -0.040 °C/century is correlated with the polar (poloidal) magnetic field. The residual temperature increase over that period, not correlated with solar variability, is 0.051 °C/century. It is ascribed to climatologic forcings and internal modes of variation. We used these results to study present terrestrial surface warming. By subtracting the above-mentioned components from the observed temperatures we found a residual excess of 0.31° in 1999, this being the triangularly weighted residual over the period 1990-2008. We show that solar forcing of the ground temperature associated with significant feedback is a regularly occurring feature, by describing some well observed events during the Holocene. © 2010 Elsevier Ltd. Fil:Duhau, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13646826_v72_n13_p926_deJager |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Global temperature variation Solar cycles Solar dynamo Solar magnetism Solar variability Sun Forcings Global temperatures Ground temperature Holocenes Internal modes Magnetic components Magnetic field components Residual temperature Solar cycle Solar dynamo Solar forcing Solar influence Solar variability Temperature gradient Terrestrial surface Total solar irradiance Water vapour Weighted residuals Atmospheric temperature Interactive devices Magnetic fields Magnetic materials Surface properties Temperature distribution Electric generators |
| spellingShingle |
Global temperature variation Solar cycles Solar dynamo Solar magnetism Solar variability Sun Forcings Global temperatures Ground temperature Holocenes Internal modes Magnetic components Magnetic field components Residual temperature Solar cycle Solar dynamo Solar forcing Solar influence Solar variability Temperature gradient Terrestrial surface Total solar irradiance Water vapour Weighted residuals Atmospheric temperature Interactive devices Magnetic fields Magnetic materials Surface properties Temperature distribution Electric generators de Jager, C. Duhau, S. van Geel, B. Quantifying and specifying the solar influence on terrestrial surface temperature |
| topic_facet |
Global temperature variation Solar cycles Solar dynamo Solar magnetism Solar variability Sun Forcings Global temperatures Ground temperature Holocenes Internal modes Magnetic components Magnetic field components Residual temperature Solar cycle Solar dynamo Solar forcing Solar influence Solar variability Temperature gradient Terrestrial surface Total solar irradiance Water vapour Weighted residuals Atmospheric temperature Interactive devices Magnetic fields Magnetic materials Surface properties Temperature distribution Electric generators |
| description |
This investigation is a follow-up of a paper in which we showed that both major magnetic components of the solar dynamo, viz. the toroidal and the poloidal ones, are correlated with average terrestrial surface temperatures. Here, we quantify, improve and specify that result and search for their causes. We studied seven recent temperature files. They were smoothed in order to eliminate the Schwabe-type (11 years) variations. While the total temperature gradient over the period of investigation (1610-1970) is 0.087 °C/century; a gradient of 0.077 °C/century is correlated with the equatorial (toroidal) magnetic field component. Half of it is explained by the increase of the Total Solar Irradiance over the period of investigation, while the other half is due to feedback by evaporated water vapour. A yet unexplained gradient of -0.040 °C/century is correlated with the polar (poloidal) magnetic field. The residual temperature increase over that period, not correlated with solar variability, is 0.051 °C/century. It is ascribed to climatologic forcings and internal modes of variation. We used these results to study present terrestrial surface warming. By subtracting the above-mentioned components from the observed temperatures we found a residual excess of 0.31° in 1999, this being the triangularly weighted residual over the period 1990-2008. We show that solar forcing of the ground temperature associated with significant feedback is a regularly occurring feature, by describing some well observed events during the Holocene. © 2010 Elsevier Ltd. |
| format |
JOUR |
| author |
de Jager, C. Duhau, S. van Geel, B. |
| author_facet |
de Jager, C. Duhau, S. van Geel, B. |
| author_sort |
de Jager, C. |
| title |
Quantifying and specifying the solar influence on terrestrial surface temperature |
| title_short |
Quantifying and specifying the solar influence on terrestrial surface temperature |
| title_full |
Quantifying and specifying the solar influence on terrestrial surface temperature |
| title_fullStr |
Quantifying and specifying the solar influence on terrestrial surface temperature |
| title_full_unstemmed |
Quantifying and specifying the solar influence on terrestrial surface temperature |
| title_sort |
quantifying and specifying the solar influence on terrestrial surface temperature |
| url |
http://hdl.handle.net/20.500.12110/paper_13646826_v72_n13_p926_deJager |
| work_keys_str_mv |
AT dejagerc quantifyingandspecifyingthesolarinfluenceonterrestrialsurfacetemperature AT duhaus quantifyingandspecifyingthesolarinfluenceonterrestrialsurfacetemperature AT vangeelb quantifyingandspecifyingthesolarinfluenceonterrestrialsurfacetemperature |
| _version_ |
1807322356588216320 |