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Andrade, C.; Santos, J. A.; Pinto, Joaquim G; Corte-Real, J. (2011)
Publisher: Inter Research
Languages: English
Types: Article
The anomalously wet winter of 2010 had a very important impact on the Portuguese hydrological system. Owing to the detrimental effects of reduced precipitation in Portugal on the environmental and socio-economic systems, the 2010 winter was predominantly beneficial by reversing the accumulated precipitation deficits during the previous hydrological years. The recorded anomalously high precipitation amounts have contributed to an overall increase in river runoffs and dam recharges in the 4 major river basins. In synoptic terms, the winter 2010 was characterised by an anomalously strong westerly flow component over the North Atlantic that triggered high precipitation amounts. A dynamically coherent enhancement in the frequencies of mid-latitude cyclones close to Portugal, also accompanied by significant increases in the occurrence of cyclonic, south and south-westerly circulation weather types, are noteworthy. Furthermore, the prevalence of the strong negative phase of the North Atlantic Oscillation (NAO) also emphasises the main dynamical features of the 2010 winter. A comparison of the hydrological and atmospheric conditions between the 2010 winter and the previous 2 anomalously wet winters (1996 and 2001) was also carried out to isolate not only their similarities, but also their contrasting conditions, highlighting the limitations of estimating winter precipitation amounts in Portugal using solely the NAO phase as a predictor.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 1Polytechnic Institute of Tomar, Quinta do Contador, Estrada da Serra, 2300-313 Tomar, Portugal 2Institute of Mediterranean Agrarian and Environmental Sciences (ICAAM), Group Water, Soil and Climate,
    • University of Évora, Núcleo da Mitra, Apartado 94, 7002-774 Évora, Portugal
    • 3CITAB, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal 4Institute for Geophysics and Meteorology, University of Cologne, Kerpener Str. 13, 50923 Cologne, Germany 3.3. Meteorological characterisation of the
    • 2010 winter Although 1996 and 2001 were characterised by ä Fink AH, Brücher T, Ermert V, Krüger A, Pinto JG (2009) The enhanced westerly flow over Portugal, the respective European storm Kyrill in January 2007: synoptic evolution large-scale patterns were different and the associated and considerations with respect to climate change. Nat
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