RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation
The first version of the Rossby Centre regional climate model (RCA) has now been developed. The RCA model is based on a parallel coding of the operational weather forecast model HIRLAM. Some modifications have been done on the model formulation, especially in its surface/snow/soil scheme, in an atte...
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Klimatforskning - Rossby Centre
1997
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ftsmhi:oai:DiVA.org:smhi-2600 2023-05-15T18:18:34+02:00 RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation Rummukainen, Markku Räisänen, Jouni Ullerstig, Anders Bringfelt, Björn Hansson, Ulf Graham, Phil 1997 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-2600 eng eng Klimatforskning - Rossby Centre SMHI Affärsverksamhet RMK, Rapport Meteorologi och Klimatologi, 0347-2116 83 http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-2600 Local Meteorologi, Rapporter, Serie RMK info:eu-repo/semantics/openAccess Dynamical downscaling regional climate modeling model parameterizations Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Report info:eu-repo/semantics/report text 1997 ftsmhi 2022-12-09T10:06:06Z The first version of the Rossby Centre regional climate model (RCA) has now been developed. The RCA model is based on a parallel coding of the operational weather forecast model HIRLAM. Some modifications have been done on the model formulation, especially in its surface/snow/soil scheme, in an attempt to include the regional and local scale climate-modifying forcing up to time scales of several years. The physical parameterization choices in HIRLAM and in RCA are discussed in some detail. One of the notable features in RCA is that the regional sea ice climate, as well as ice on the numerous lakes in the region, has been included in a crude, but time-efficient fashion. It appears that realistic modeling of the sea/lake ice is most important for modeling the regional climate in the Nordic region. The RCA model has been run fora ten-year period, focusing on the Nordic region, using results from a coupled ocean-atmosphere general circulation model. In this first multi-year simulation, the regional resolution was 44 km. Several results are illustrated from this regional simulation and they are compared to the driving global model data, to analyzed observations and to Swedish station data for the 1961-90 period. The apparent model development needs are also discussed briefly. Report Sea ice SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA) |
institution |
Open Polar |
collection |
SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA) |
op_collection_id |
ftsmhi |
language |
English |
topic |
Dynamical downscaling regional climate modeling model parameterizations Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
spellingShingle |
Dynamical downscaling regional climate modeling model parameterizations Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Rummukainen, Markku Räisänen, Jouni Ullerstig, Anders Bringfelt, Björn Hansson, Ulf Graham, Phil RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
topic_facet |
Dynamical downscaling regional climate modeling model parameterizations Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
description |
The first version of the Rossby Centre regional climate model (RCA) has now been developed. The RCA model is based on a parallel coding of the operational weather forecast model HIRLAM. Some modifications have been done on the model formulation, especially in its surface/snow/soil scheme, in an attempt to include the regional and local scale climate-modifying forcing up to time scales of several years. The physical parameterization choices in HIRLAM and in RCA are discussed in some detail. One of the notable features in RCA is that the regional sea ice climate, as well as ice on the numerous lakes in the region, has been included in a crude, but time-efficient fashion. It appears that realistic modeling of the sea/lake ice is most important for modeling the regional climate in the Nordic region. The RCA model has been run fora ten-year period, focusing on the Nordic region, using results from a coupled ocean-atmosphere general circulation model. In this first multi-year simulation, the regional resolution was 44 km. Several results are illustrated from this regional simulation and they are compared to the driving global model data, to analyzed observations and to Swedish station data for the 1961-90 period. The apparent model development needs are also discussed briefly. |
format |
Report |
author |
Rummukainen, Markku Räisänen, Jouni Ullerstig, Anders Bringfelt, Björn Hansson, Ulf Graham, Phil |
author_facet |
Rummukainen, Markku Räisänen, Jouni Ullerstig, Anders Bringfelt, Björn Hansson, Ulf Graham, Phil |
author_sort |
Rummukainen, Markku |
title |
RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
title_short |
RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
title_full |
RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
title_fullStr |
RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
title_full_unstemmed |
RCA - Rossby Centre regional Atmospheric climate model: model description and results from the first multi-year simulation |
title_sort |
rca - rossby centre regional atmospheric climate model: model description and results from the first multi-year simulation |
publisher |
Klimatforskning - Rossby Centre |
publishDate |
1997 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-2600 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
RMK, Rapport Meteorologi och Klimatologi, 0347-2116 83 http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-2600 Local Meteorologi, Rapporter, Serie RMK |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766195184563912704 |