Statistical modelling and analysis of summer very hot events in mainland Spain

• Autores: Mercè Castellà Sánchez
• Directores de la Tesis: Manola Brunet India (dir. tes.)
• Lectura: En la Universitat Rovira i Virgili ( España ) en 2014
• Idioma: inglés
• Tribunal Calificador de la Tesis: Javier Rodolfo López Marmolejo (presid.), Constanţa Boroneant (secret.), Philip Douglas Jones (voc.)
• Enlaces
  • Tesis en acceso abierto en: TDX
• Resumen

  • Extreme temperature events are of particular importance due to their severe impact on the environment, economy and the society. Focused on the uppermost percentiles of summer daily maximum (Tx) and minimum (Tn) temperatures,in this thesis a modelling and analysis of summer very hot days (VHD) and nights (VHN) over mainland Spain has been carried out applying the methodology of Point Process Approach based on Extreme Value Theory. It has been investigated whether large-scale variables of Sea Level Pressure, Sea Surface Temperature and soil moisture are associated to the occurrence and intensity of these exceptional events. Furthermore, the observed changes and trends in Tx and Tn extreme distribution have been analysed and different returns levels have been estimated. The link between the occurrence and the intensity of VHD and VHN with the large-scale anomalies has been demonstrated. Changes in extreme temperatures are generalized, but not homogeneous in space and time.