Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/51616
Título: Saharan dust-induced chlorophyll blooms in the north-west African Upwelling
Autores/as: Ramos, Antonio G. 
Cuevas, Emilio
Pérez, Carlos
Baldasano, J. M.
Coca, Josep 
Redondo, Alex
Alonso-Pérez, Silvia
Bustos, Juan José
Rodriguez, Sergio
Petit, Michel
Nickovic, Slobodan
Clasificación UNESCO: 250616 Teledetección (Geología)
Palabras clave: Saharan dust
African upwelling
Fecha de publicación: 2008
Editor/a: The international society for optics and photonics (SPIE) 
Publicación seriada: Proceedings of SPIE - The International Society for Optical Engineering 
Conferencia: Remote Sensing of Inland, Coastal, and Oceanic Waters 
Resumen: During the period 2000-2005, the atmospheric dynamic showed a significant influence on the dust inputs dynamic and, as a result, on the primary production of the northwest African Upwelling System since 2000 to 2005. In this period, the annual mean sea level pressure became higher, ranging from 1014 to 1015 mb. Mean annual zonal wind intensity became higher (from 1.1 to 1.8 m s-1), while the mean annual meridional wind reduced from 6.2 to 5.3 m s-1. Mean annual satellite-derived AVHRR/NOAA Sea Surface Temperature recorded in the northwest African Upwelling becomes warmer with 18.3ºC to 18.8ºC in Cape Ghir, and from 19.5ºC to 20.3ºC north Canary Islands waters. Chlorophyll data from SeaWiFS/OV-2 showed a different pattern trend. Mean annual CHL levels increased at eutrophic-like waters of Cape Ghir from 0.65 mg m-3 to 0.9 mg m-. However, data were significantly reduced from 0.59 mg m-3 to 0.31 mg m-3 in oligotrophic-like waters of the Canary Islands. Changes observed in the role of CHL during the last 6-years period could be associated to intensive dust deposition and the exceptional weather warming observed in this area since 2000. However, it is addressed to a single 7 years period and conclusions on possible links between dust deposition and marine biochemistry activity cannot be generalized.
URI: http://hdl.handle.net/10553/51616
ISSN: 0277-786X
Fuente: Proceedings of SPIE - The International Society for Optical Engineering [ISSN 0277-786X], v. 7150, p. 715011
Colección:Actas de congresos
miniatura
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