Subsurface temperatures during the last millennium: Model and observation

General Circulation Models (GCMs) used to distinguish anthropogenic forcing of the Earth's past climate from its natural variability need to be validated by observations. The GCM ECHO-g was used to produce three millennial simulations of the Earth's climate. Two simulations include changes...

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Detalhes bibliográficos
Autores: Beltrami, Hugo, González Rouco, Jesús Fidel, Stevens, M. Bruce
Tipo de documento: artigo
Data de publicação:2006
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositório:Docta Complutense
Idioma:inglês
OAI Identifier:oai:docta.ucm.es:20.500.14352/51829
Acesso em linha:https://hdl.handle.net/20.500.14352/51829
Access Level:Acceso aberto
Palavra-chave:52
1000-yr control simulation
Surface air-temperature
Coupled climate model
Echo-G
Geothermal measurements
Borehole temperatures
Internal variability
Northern-hemisphere
Eastern Canada
Reconstructions
Astrofísica
Astronomía (Física)
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spelling Subsurface temperatures during the last millennium: Model and observationBeltrami, HugoGonzález Rouco, Jesús FidelStevens, M. Bruce521000-yr control simulationSurface air-temperatureCoupled climate modelEcho-GGeothermal measurementsBorehole temperaturesInternal variabilityNorthern-hemisphereEastern CanadaReconstructionsAstrofísicaAstronomía (Física)General Circulation Models (GCMs) used to distinguish anthropogenic forcing of the Earth's past climate from its natural variability need to be validated by observations. The GCM ECHO-g was used to produce three millennial simulations of the Earth's climate. Two simulations include changes in anthropogenic and natural external forcing factors through the last millennium, differing only in their initial conditions, and a control run with constant external forcing representing internal variability. Since the ground contains a record of long-term trends in SAT, we use borehole temperatures in Canada, grouped into regions, as a record of past climate. The regional average SATs from ECHO-g were used to solve the forward subsurface thermal profile, and compared with the underground temperature anomalies observed at each region. In all cases simulated subsurface anomalies from the forced simulations are in better agreement with observations than those from the control simulation.American Geophysical UnionUniversidad Complutense de Madrid20062006-05-0620062006-05-06journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/51829reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/518292026-06-02T12:44:21Z
dc.title.none.fl_str_mv Subsurface temperatures during the last millennium: Model and observation
title Subsurface temperatures during the last millennium: Model and observation
spellingShingle Subsurface temperatures during the last millennium: Model and observation
Beltrami, Hugo
52
1000-yr control simulation
Surface air-temperature
Coupled climate model
Echo-G
Geothermal measurements
Borehole temperatures
Internal variability
Northern-hemisphere
Eastern Canada
Reconstructions
Astrofísica
Astronomía (Física)
title_short Subsurface temperatures during the last millennium: Model and observation
title_full Subsurface temperatures during the last millennium: Model and observation
title_fullStr Subsurface temperatures during the last millennium: Model and observation
title_full_unstemmed Subsurface temperatures during the last millennium: Model and observation
title_sort Subsurface temperatures during the last millennium: Model and observation
dc.creator.none.fl_str_mv Beltrami, Hugo
González Rouco, Jesús Fidel
Stevens, M. Bruce
author Beltrami, Hugo
author_facet Beltrami, Hugo
González Rouco, Jesús Fidel
Stevens, M. Bruce
author_role author
author2 González Rouco, Jesús Fidel
Stevens, M. Bruce
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
1000-yr control simulation
Surface air-temperature
Coupled climate model
Echo-G
Geothermal measurements
Borehole temperatures
Internal variability
Northern-hemisphere
Eastern Canada
Reconstructions
Astrofísica
Astronomía (Física)
topic 52
1000-yr control simulation
Surface air-temperature
Coupled climate model
Echo-G
Geothermal measurements
Borehole temperatures
Internal variability
Northern-hemisphere
Eastern Canada
Reconstructions
Astrofísica
Astronomía (Física)
description General Circulation Models (GCMs) used to distinguish anthropogenic forcing of the Earth's past climate from its natural variability need to be validated by observations. The GCM ECHO-g was used to produce three millennial simulations of the Earth's climate. Two simulations include changes in anthropogenic and natural external forcing factors through the last millennium, differing only in their initial conditions, and a control run with constant external forcing representing internal variability. Since the ground contains a record of long-term trends in SAT, we use borehole temperatures in Canada, grouped into regions, as a record of past climate. The regional average SATs from ECHO-g were used to solve the forward subsurface thermal profile, and compared with the underground temperature anomalies observed at each region. In all cases simulated subsurface anomalies from the forced simulations are in better agreement with observations than those from the control simulation.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-05-06
2006
2006-05-06
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/51829
url https://hdl.handle.net/20.500.14352/51829
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414845515825152
score 15.223283

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