Spatial influence and oceanic thermal response to Santa Ana events along the Baja California peninsula
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2006
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| _version_ | 1876485807527690240 |
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| author | A. Mascarenhas |
| author_facet | A. Mascarenhas |
| contents | Spatial influence and oceanic thermal response to Santa Ana events along the Baja California peninsula A. Mascarenhas R. Castro A. Martínez-Díaz-de-León R. Durazo E. Gil-Silva Biología heat fluxes Santa Ana condition meteorological stations Pacific and Gulf of California Meteorological data were recorded at eight stations located along the coast of the Pacific Ocean and threealong the coast of the Gulf of California, aimed to assess the spatial influence of Santa Ana weather conditionsin the Baja California peninsula. February 2002 featured two Santa Ana events: one from the 9 to the 12 andanother from the 21 to the 22. The first Santa Ana event had the strongest winds, however relative humidityand temperature behaved similarly on both events at some stations. Data from the Pacific Ocean showedtypical Santa Ana condition patterns: wind speed and temperature increase opposed to decreased relativehumidity values. Data from the Gulf of California did not show the typical temperature rise of a Santa Anacondition, but there was a decrease on the amplitude of the diurnal variability of air temperature and relativehumidity as well as a marked increase on wind strength. Wind direction during the Santa Ana events on thePacific side was NE and NW on the Gulf of California. NE winds are associated to the shift on the position ofthe North Pacific High Pressure Center, which moves towards the continent. Data suggest that relativehumidity may be the best parameter to monitor both occurrence and length of Santa Ana conditions on thePacific side. Normal weather conditions show a negative air-sea temperature difference, but during bothSanta Ana events this difference was positive and higher than 10 °C. Latent and sensible heat fluxes drasticallyincreased during both events, reaching values more than three times higher than those for normal conditions,which is due to the presence of strong winds combined with a drier and hotter air mass over the ocean. 2006 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56519304 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.3 Vol.19 |
| format | Artículo científico |
| id | redalyc_56519304 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Spatial influence and oceanic thermal response to Santa Ana events along the Baja California peninsula A. Mascarenhas Biología heat fluxes Santa Ana condition meteorological stations Pacific and Gulf of California Spatial influence and oceanic thermal response to Santa Ana events along the Baja California peninsula A. Mascarenhas R. Castro A. Martínez-Díaz-de-León R. Durazo E. Gil-Silva Biología heat fluxes Santa Ana condition meteorological stations Pacific and Gulf of California Meteorological data were recorded at eight stations located along the coast of the Pacific Ocean and threealong the coast of the Gulf of California, aimed to assess the spatial influence of Santa Ana weather conditionsin the Baja California peninsula. February 2002 featured two Santa Ana events: one from the 9 to the 12 andanother from the 21 to the 22. The first Santa Ana event had the strongest winds, however relative humidityand temperature behaved similarly on both events at some stations. Data from the Pacific Ocean showedtypical Santa Ana condition patterns: wind speed and temperature increase opposed to decreased relativehumidity values. Data from the Gulf of California did not show the typical temperature rise of a Santa Anacondition, but there was a decrease on the amplitude of the diurnal variability of air temperature and relativehumidity as well as a marked increase on wind strength. Wind direction during the Santa Ana events on thePacific side was NE and NW on the Gulf of California. NE winds are associated to the shift on the position ofthe North Pacific High Pressure Center, which moves towards the continent. Data suggest that relativehumidity may be the best parameter to monitor both occurrence and length of Santa Ana conditions on thePacific side. Normal weather conditions show a negative air-sea temperature difference, but during bothSanta Ana events this difference was positive and higher than 10 °C. Latent and sensible heat fluxes drasticallyincreased during both events, reaching values more than three times higher than those for normal conditions,which is due to the presence of strong winds combined with a drier and hotter air mass over the ocean. 2006 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56519304 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.3 Vol.19 |
| title | Spatial influence and oceanic thermal response to Santa Ana events along the Baja California peninsula |
| topic | Biología heat fluxes Santa Ana condition meteorological stations Pacific and Gulf of California |
| url | https://www.redalyc.org/articulo.oa?id=56519304 |