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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2004
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| Online Access: | https://www.redalyc.org/articulo.oa?id=56517202 |
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| _version_ | 1866815570573262848 |
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| author | G. Escobar |
| author_facet | G. Escobar |
| contents | Sequence patterns of 1000 hPa and 500 hPa geopotential height fields associated with cold surges over Central Argentina. G. Escobar R. Compagnucci S. Bischoff Biología Blockings Cold surges Principal components An objective classification of sequence patterns of 1000 hPa and 500 hPa geopotential heights associatedwith cold surges over Central Argentina was carried out. Polar Outbreaks during wintertime in CentralArgentina (May to September) cause important damage to the regional agriculture and sometimes affect theenergy supply. In particular, the consumption of natural gas is strongly dependent on significant temperaturedescents. The rotated Principal Components Analysis (PCA) was used to obtain the basic patterns of sequenceof 1000 hPa and 500 hPa geopotential heights. The winter cold surges during the 1979-1993 period occur in seven patterns at 1000 hPa and three modes at 500 hPa. The combination of both levels shows three typicalsituations related to cold surges over Central Argentina. The most classic pattern shows an important ridgewest of the Pacific coast of the continent at its upper level and a postfrontal anticyclone at its lower levelproducing cold air advection over Central Argentina. The other two patterns present a long wave trough atupper levels affecting the continent, one of them with the postfrontal anticyclone moving over middle andlow latitudes, and the other with the migratory anticyclone affecting lower latitudes. 2004 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56517202 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.2 Vol.17 |
| format | Artículo científico |
| id | redalyc_56517202 |
| language | en |
| publishDate | 2004 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Sequence patterns of 1000 hPa and 500 hPa geopotential height fields associated with cold surges over Central Argentina. G. Escobar Biología Blockings Cold surges Principal components Sequence patterns of 1000 hPa and 500 hPa geopotential height fields associated with cold surges over Central Argentina. G. Escobar R. Compagnucci S. Bischoff Biología Blockings Cold surges Principal components An objective classification of sequence patterns of 1000 hPa and 500 hPa geopotential heights associatedwith cold surges over Central Argentina was carried out. Polar Outbreaks during wintertime in CentralArgentina (May to September) cause important damage to the regional agriculture and sometimes affect theenergy supply. In particular, the consumption of natural gas is strongly dependent on significant temperaturedescents. The rotated Principal Components Analysis (PCA) was used to obtain the basic patterns of sequenceof 1000 hPa and 500 hPa geopotential heights. The winter cold surges during the 1979-1993 period occur in seven patterns at 1000 hPa and three modes at 500 hPa. The combination of both levels shows three typicalsituations related to cold surges over Central Argentina. The most classic pattern shows an important ridgewest of the Pacific coast of the continent at its upper level and a postfrontal anticyclone at its lower levelproducing cold air advection over Central Argentina. The other two patterns present a long wave trough atupper levels affecting the continent, one of them with the postfrontal anticyclone moving over middle andlow latitudes, and the other with the migratory anticyclone affecting lower latitudes. 2004 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56517202 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.2 Vol.17 |
| title | Sequence patterns of 1000 hPa and 500 hPa geopotential height fields associated with cold surges over Central Argentina. |
| topic | Biología Blockings Cold surges Principal components |
| url | https://www.redalyc.org/articulo.oa?id=56517202 |