The biomes are diverse in these Mediterranean climate zones: Mediterranean forests, woodlands, and scrub. There, larger tributaries flowing from the central Pyrenees and the Iberian System discharge large amounts of water, especially in spring during the thawing season of the mountain snow. The valley expands and the Ebro's flow then becomes slower as its water volume increases, flowing across Aragon. Karst geological processes shaped the landscape of layers of soluble carbonate rock of extensive limestone bedrock formed in an ancient seabed. ![]() These are in places salt-rich, seeing some saltwater endorheic lagoons. The subsoil being close to the surface is organically poor and quick-draining: calcareous, pebbly, stony layers. The natural topsoils across the plains are, outside of historically well-forested zones, thin. There are many ground frosts on clear nights, and sporadic snowfalls. It is a continental Mediterranean climate with extreme temperatures. In some areas the vegetation depends heavily on moisture produced by condensation fog. In winter, the temperatures often drop below 0 ☌ (32 ☏). The dry summer season has temperatures of more than 35 ☌ (95 ☏), occasionally reaching over 40 ☌ (104 ☏). It is often covered with chaparral vegetation. The valley flood plains have rainfall between 300 and 600 mm (12–24 in), with maxima in fall and spring. Summers of the Ebro Valley most often mirror those of a semiarid climate some of them see more breaks of storms or showers, yet others are more arid bringing drought save where advanced irrigation is used. This implies summer/winter seasonal contrast and a rather dry climate. Climate ĭownstream from Cantabria the climate in the Ebro basin – the valley being isolated from sea air masses by surrounding mountains – becomes Mediterrean/Atlantic influenced and continental. Much of the total water volume of the Ebro comes from its northern tributaries, which drain about 2⁄ 3 of the southern slopes of the Pyrenees mountains, which run along the border with France.Īll of Andorra's drainage basin is in the Ebro, through the Segre. North of the headwaters is the Cantabrian mountain range (south of Bilbao and Santander). Southern tributaries rise on the nearby watershed, the Sistema Ibérico, a mountain range among those of Spain's centre. Flowing roughly eastwards it passes las conchas de Haro and begins forming a wider river valley among limestone rocks when it reaches La Rioja and Navarre. The upper Ebro rushes through rocky gorges in Burgos Province. Close by is a large artificial lake, Embalse del Ebro, created by its damming. The source of the river Ebro is in the Cantabrian Mountains, in Fontibre, Cantabria, from the Latin Fontes Iberis, fount /source of the Ebro. ![]() The Ebro flows through many cities ( Spanish: ciudades): Reinosa in Cantabria Frías and Miranda de Ebro in Castile and León Haro, Logroño, Calahorra, and Alfaro in La Rioja Tudela in Navarre Alagón, Utebo, and Zaragoza in Aragon and Flix, Móra d'Ebre, Benifallet, Tivenys, Xerta, Aldover, Tortosa, and Amposta in the province of Tarragona ( Catalonia). It is also the second-longest river in the Mediterranean basin, after the Nile. ![]() It is the longest river entirely within Spain the other two mentioned flow into Portugal. In the Iberian peninsula, it ranks second in length after the Tagus and second in discharge volume, and drainage basin, after the Douro. It flows into the Mediterranean Sea forming a delta in the Province of Tarragona, in southern Catalonia. It rises in Cantabria and flows 930 kilometres (580 mi), almost entirely in an east-southeast direction. The Ebro ( Spanish and Basque pronunciation: Catalan: Ebre ) is a river of the north and northeast of the Iberian Peninsula, in Spain. Oca, Oja, Tirón, Najerilla, Iregua, Cidacos, Alhama, Jalón, Huerva, Martín, Guadalope, Matarranya Nela, Jerea, Bayas, Zadorra, Ega, Arga, Aragón, Gállego, Cinca, Segre
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