The North Atlantic Oscillation (NAO) and climate risks during winter in between Coimbra 1950 and 2010

• Published in: Territorium
• Main Authors: Mateus, Carla, Cunha, Lúcio
• Format: Article in Journal/Newspaper
• Language: Portuguese
• Published: Imprensa da Universidade de Coimbra 2013
• Subjects: North Atlantic Oscillation; cold waves; floods; prevention; land use planning; Oscilação do Atlântico Norte; ondas de frio; cheias; prevenção; ordenamento do território; Oscilación del Atlántico Norte; olas de frío; inundaiones; revencion; planificación del uso del suelo; Oscillation Nord-Atlantique; vagues de froid; inondations; prévation; amenagement du territoire; Invierno; North Atlantic; North Atlantic oscillation
• Online Access: https://impactum-journals.uc.pt/territorium/article/view/1647-7723_20_3; https://doi.org/10.14195/1647-7723_20_3

There is a relationship between the phases of the NAO and the manifestations of climatic risk recorded in the winter of 1050 and 2010 in Coimbra. There were periods with higher quantitative rainfall, higher flow rates and higher monthly occurrence of floods, wich corresponded to the negatives phases of NAO. In contrast, during the positives phases there was a lowering of minimum temperatures, more days with temperatures ≤ 0ºC, in Coimbra, and a greater occurrence of cold waves in the case of the Central Region from 1983 and 2009. Existe una relatión entre las fases de la NAO y las manifestaciones de lo riesgo climático en el invierno de 1950 y 2010 en Coimbra. Hubo períodos de mayores precipitaciones cuantitativos, el aumento de las tasas de flujo y una mayor ocurrencia mensual de las inundaciones, lo que corresponde a las fases negativas de la NAO. En contraste, durante las fases positivas se produjo un descenso de las temperaturas mínimas, más días com temperaturas ≤ 0ºC, en Coimbra, y una mayor ocurrencia de olas de frío en el caso de la Región Central entre 1983 y 2009. Il ya une relation entre les phases de la NAO et les manifestations du risque climatique en hiver à Coimbra entre 1950 à 2010. Il y avait des périodes avec plus fortes précipitations quantitatives, des débits plus élevés et une plus grande occurence mensuelle des inondations, ce qui correspondait à las phases negatives de la NAO. En revanche, lors de las phases positives, il ya eu une diminution de la temperature minimale, plus jour avec des températures ≤ 0ºC, à Coimbra et, fréqunce plus élevée de vagues de froid dans le cas de la région centrale de 1983 à 2009. Existe uma relação entre as fases da NAO e as manifestações de risco climático no Inverno em Coimbra entre 1950 e 2010. Verificaram-se períodos com maiores quantitativos pluviométricos, maiores caudais mensais e maior ocorrência de cheias, o que correspondeu a fases negativas da NAO. Em oposição, durante as fases positivas registou-se um abaixamento das temperaturas mínimas, ...