On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/7078 https://doi.org/10.3402/tellusa.v64i0.15829 |
Resumo: | The impact of lakes in numerical weather prediction is investigated in a set of global simulations performed with the ECMWF Integrated Forecasting System (IFS). A Fresh shallow-water Lake model (FLake) is introduced allowing the coupling of both resolved and subgrid lakes (those that occupy less than 50% of a grid-box) to the IFS atmospheric model. Global fields for the lake ancillary conditions (namely lake cover and lake depth), as well as initial conditions for the lake physical state, have been derived to initialise the forecast experiments. The procedure for initialising the lake variables is described and verified with particular emphasis on the importance of surface water temperature and freezing conditions. The response of short-range near surface temperature to the representation of lakes is examined in a set of forecast experiments covering one full year. It is shown that the impact of subgrid lakes is beneficial, reducing forecast error over the Northern territories of Canada and over Scandinavia particularly in spring and summer seasons. This is mainly attributed to the lake thermal effect, which delays the temperature response to seasonal radiation forcing. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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On the contribution of lakes in predicting near-surface temperature in a global weather forecasting modellakes impact in NWPglobal lake simulationslake-temperaturelake-iceThe impact of lakes in numerical weather prediction is investigated in a set of global simulations performed with the ECMWF Integrated Forecasting System (IFS). A Fresh shallow-water Lake model (FLake) is introduced allowing the coupling of both resolved and subgrid lakes (those that occupy less than 50% of a grid-box) to the IFS atmospheric model. Global fields for the lake ancillary conditions (namely lake cover and lake depth), as well as initial conditions for the lake physical state, have been derived to initialise the forecast experiments. The procedure for initialising the lake variables is described and verified with particular emphasis on the importance of surface water temperature and freezing conditions. The response of short-range near surface temperature to the representation of lakes is examined in a set of forecast experiments covering one full year. It is shown that the impact of subgrid lakes is beneficial, reducing forecast error over the Northern territories of Canada and over Scandinavia particularly in spring and summer seasons. This is mainly attributed to the lake thermal effect, which delays the temperature response to seasonal radiation forcing.International Meteorological Institute in Stockholm2013-01-07T15:13:19Z2013-01-072012-02-23T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/7078http://hdl.handle.net/10174/7078https://doi.org/10.3402/tellusa.v64i0.15829engBalsamo, G., R. Salgado, E. Dutra, S. Boussetta, T. Stockdale, M. Potes, 2012: On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model, Tellus-A, 64, 15829, DOI: 10.3402/tellusa.v64i0.15829, also available as ECMWF Tech. memo 648.ndrsal@uevora.ptndndndmpotes@uevora.pt399Balsamo, GianpaoloSalgado, RuiDutra, EmanuelBoussetta, S.Stockdale, T.Potes, Miguelinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:46:57Zoai:dspace.uevora.pt:10174/7078Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:01:41.316904Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
title |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
spellingShingle |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model Balsamo, Gianpaolo lakes impact in NWP global lake simulations lake-temperature lake-ice |
title_short |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
title_full |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
title_fullStr |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
title_full_unstemmed |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
title_sort |
On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model |
author |
Balsamo, Gianpaolo |
author_facet |
Balsamo, Gianpaolo Salgado, Rui Dutra, Emanuel Boussetta, S. Stockdale, T. Potes, Miguel |
author_role |
author |
author2 |
Salgado, Rui Dutra, Emanuel Boussetta, S. Stockdale, T. Potes, Miguel |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Balsamo, Gianpaolo Salgado, Rui Dutra, Emanuel Boussetta, S. Stockdale, T. Potes, Miguel |
dc.subject.por.fl_str_mv |
lakes impact in NWP global lake simulations lake-temperature lake-ice |
topic |
lakes impact in NWP global lake simulations lake-temperature lake-ice |
description |
The impact of lakes in numerical weather prediction is investigated in a set of global simulations performed with the ECMWF Integrated Forecasting System (IFS). A Fresh shallow-water Lake model (FLake) is introduced allowing the coupling of both resolved and subgrid lakes (those that occupy less than 50% of a grid-box) to the IFS atmospheric model. Global fields for the lake ancillary conditions (namely lake cover and lake depth), as well as initial conditions for the lake physical state, have been derived to initialise the forecast experiments. The procedure for initialising the lake variables is described and verified with particular emphasis on the importance of surface water temperature and freezing conditions. The response of short-range near surface temperature to the representation of lakes is examined in a set of forecast experiments covering one full year. It is shown that the impact of subgrid lakes is beneficial, reducing forecast error over the Northern territories of Canada and over Scandinavia particularly in spring and summer seasons. This is mainly attributed to the lake thermal effect, which delays the temperature response to seasonal radiation forcing. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-23T00:00:00Z 2013-01-07T15:13:19Z 2013-01-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/7078 http://hdl.handle.net/10174/7078 https://doi.org/10.3402/tellusa.v64i0.15829 |
url |
http://hdl.handle.net/10174/7078 https://doi.org/10.3402/tellusa.v64i0.15829 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Balsamo, G., R. Salgado, E. Dutra, S. Boussetta, T. Stockdale, M. Potes, 2012: On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model, Tellus-A, 64, 15829, DOI: 10.3402/tellusa.v64i0.15829, also available as ECMWF Tech. memo 648. nd rsal@uevora.pt nd nd nd mpotes@uevora.pt 399 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
International Meteorological Institute in Stockholm |
publisher.none.fl_str_mv |
International Meteorological Institute in Stockholm |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799136500643790848 |