Inter- and intra-annual analysis of the salinity and temperature evolution in the Galician Rı́as Baixas--ocean boundary (northwest Spain)
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چکیده
[1] The interand intra-annual evolution of temperature and salinity has been analyzed in the Rı́as Baixas–ocean boundary. Each rı́a (Vigo, Pontevedra, and Arousa) is connected to the shelf by two entrances separated by islands. Samples were taken weekly at both mouths from October 1997 to October 2002. All rı́as are observed to share some common features: thermal inversion from November to February, intense upwelling events from April to September (observed in about 40% of the bottom measurement at the southern mouths), and the input of a warm water mass in October. The Rı́as of Vigo and Pontevedra behave in a similar way, even quantitatively, and they differ slightly from the Rı́a of Arousa. This difference is especially important at the northern mouth of Arousa, where water is fresher in winter and upwelling events are less frequent in summer. These differences are mainly due to the slightly different orientation of the Rı́a of Arousa compared to the rest of the rı́as, the higher river discharge in this estuary, and the shallowness of its mouth.
منابع مشابه
بررسی تنوع ژنتیکی و روابط خویشاوندی یونجه‌های یک‌ساله دیپلوئید و تتراپلوئید با استفاده از نشانگرهای ریزماهواره
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تاریخ انتشار 2005