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Poleward intrusion in the northern Galician shelf |
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| Authors: | I Alvarez N Ospina-Alvarez M deCastro M Varela M Gomez-Gesteira R Prego |
| Institution: | 1. EPhysLab (Environmental Physics Laboratory), Universidade de Vigo, Facultade de Ciencias, 32004 Ourense, Spain;2. CESAM, Departamento de Física, Universidade de Aveiro, Aveiro, Portugal;3. Marine Research Institute (CSIC), 36208 Vigo, Spain;4. Centro Oceanográfico de La Coruña (IEO), La Coruña, Spain |
| Abstract: | The evolution of a warm water mass related to the Iberian Poleward Current (IPC) was characterized along the northern Galician shelf in November 2008 by means of Sea Surface Temperature and wind data. It was observed that under upwelling favorable conditions water temperature decreased along the northern coast and a temperature break appeared between Cape Vilano and Cape Ortegal showing a relaxation of the poleward intrusion. The effect of the IPC was also analyzed inside the Northern Galician Rias taking into account the hydrographical and biogeochemical properties measured on November 18. Water driven by the IPC was observed close to the mouth of the rias, around Cape Estaca de Bares, causing a nutrient salts decrease. Inside the rias a slight biological activity was found near surface resulting from fluvial contributions. |
| Keywords: | Iberian Poleward Current Northern Galician Rias SST Ekman transport thermohaline variables nutrient salts chlorophyll |
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