Impact of improved land surface model physics on simulated climate variability and change

The land is a pivotal component of the Earth and its climate system since many processes of natural variations in the climate system, which affect the environment and human society, are governed by the land surface. Hence, a good representation of the thermal and hydrological states of the land surf...

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Detalles Bibliográficos
Autor: Steinert, Norman
Tipo de recurso: tesis doctoral
Fecha de publicación:2022
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/3538
Acceso en línea:https://hdl.handle.net/20.500.14352/3538
Access Level:acceso abierto
Palabra clave:551.588.7(043.2)
Climatic change
Clima
cambios
Meteorología (Física)
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spelling Impact of improved land surface model physics on simulated climate variability and changeImpacto de mejoras en el modelo de suelo en la simulación de la variabilidad y el cambio climáticoSteinert, Norman551.588.7(043.2)Climatic changeClimacambiosMeteorología (Física)The land is a pivotal component of the Earth and its climate system since many processes of natural variations in the climate system, which affect the environment and human society, are governed by the land surface. Hence, a good representation of the thermal and hydrological states of the land surface in climate models is important to have a realistic simulation of the coupling between the atmosphere and the lito-biosphere. An influencing factor for improving the realism of the ground energy and water balance in climate models is the depth of the land zero-flux Bottom Boundary Condition Placement (BBCP). Despite recent improvements in modeling land surface processes in climate models, only limited attention has been directed toward the effect of the BBCP in Land Surface Models (LSMs) and its impact on the representation of terrestrial thermodynamics. Previous analytical and modeling studies suggest that the simulation of subsurface thermodynamics in current-generation climate models is not accurate due to the zero-heat-flux BBCP being imposed too close to the surface. An insufficiently deep land component in current-generation climate models compromises the simulation of the terrestrial thermal state and can influence land-atmosphere interactions. Further improvements in LSMs relate to the representation and sensitivity of coupling processes between the ground thermodynamic and hydrological regimes. As moisture is one of the main drivers of near-surface climate interactions, the hydro-thermodynamic coupling is crucial for studying the impacts of perturbations caused by human activity. Under climate change conditions, some areas and ecosystems are more vulnerable to a rapidly warming world than others...Universidad Complutense de MadridGonzález Rouco, Jesús FidelJungclaus, JohannGarcía Bustamante, ElenaUniversidad Complutense de Madrid20222022-03-2120222022-03-21doctoral thesishttp://purl.org/coar/resource_type/c_db06info:eu-repo/semantics/doctoralThesisapplication/pdfhttps://hdl.handle.net/20.500.14352/3538reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/35382026-06-02T12:44:21Z
dc.title.none.fl_str_mv Impact of improved land surface model physics on simulated climate variability and change
Impacto de mejoras en el modelo de suelo en la simulación de la variabilidad y el cambio climático
title Impact of improved land surface model physics on simulated climate variability and change
spellingShingle Impact of improved land surface model physics on simulated climate variability and change
Steinert, Norman
551.588.7(043.2)
Climatic change
Clima
cambios
Meteorología (Física)
title_short Impact of improved land surface model physics on simulated climate variability and change
title_full Impact of improved land surface model physics on simulated climate variability and change
title_fullStr Impact of improved land surface model physics on simulated climate variability and change
title_full_unstemmed Impact of improved land surface model physics on simulated climate variability and change
title_sort Impact of improved land surface model physics on simulated climate variability and change
dc.creator.none.fl_str_mv Steinert, Norman
author Steinert, Norman
author_facet Steinert, Norman
author_role author
dc.contributor.none.fl_str_mv González Rouco, Jesús Fidel
Jungclaus, Johann
García Bustamante, Elena
Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.588.7(043.2)
Climatic change
Clima
cambios
Meteorología (Física)
topic 551.588.7(043.2)
Climatic change
Clima
cambios
Meteorología (Física)
description The land is a pivotal component of the Earth and its climate system since many processes of natural variations in the climate system, which affect the environment and human society, are governed by the land surface. Hence, a good representation of the thermal and hydrological states of the land surface in climate models is important to have a realistic simulation of the coupling between the atmosphere and the lito-biosphere. An influencing factor for improving the realism of the ground energy and water balance in climate models is the depth of the land zero-flux Bottom Boundary Condition Placement (BBCP). Despite recent improvements in modeling land surface processes in climate models, only limited attention has been directed toward the effect of the BBCP in Land Surface Models (LSMs) and its impact on the representation of terrestrial thermodynamics. Previous analytical and modeling studies suggest that the simulation of subsurface thermodynamics in current-generation climate models is not accurate due to the zero-heat-flux BBCP being imposed too close to the surface. An insufficiently deep land component in current-generation climate models compromises the simulation of the terrestrial thermal state and can influence land-atmosphere interactions. Further improvements in LSMs relate to the representation and sensitivity of coupling processes between the ground thermodynamic and hydrological regimes. As moisture is one of the main drivers of near-surface climate interactions, the hydro-thermodynamic coupling is crucial for studying the impacts of perturbations caused by human activity. Under climate change conditions, some areas and ecosystems are more vulnerable to a rapidly warming world than others...
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-03-21
2022
2022-03-21
dc.type.none.fl_str_mv doctoral thesis
http://purl.org/coar/resource_type/c_db06
dc.type.openaire.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/3538
url https://hdl.handle.net/20.500.14352/3538
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 Universidad Complutense de Madrid
publisher.none.fl_str_mv Universidad Complutense de Madrid
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
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score 15.300719

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