Trend analysis of annual and monthly rainfall over the period 1900-2000 in Portugal mainland

Authors

  • M. Isabel P. de Lima IMAR, Instituto do Mar- Centro Interdisciplinar de Coimbra Departamento Florestal da Escola Superior Agrária do Instituto Politécnico de Coimbra-Bencanta
  • Ana C. Marques IMAR, Instituto do Mar- Centro Interdisciplinar de Coimbra Bolseira da Fundação para a Ciência e a Tecnologia
  • João L. M P. de Lima IMAR, Instituto do Mar- Centro Interdisciplinar de Coimbra Departamento de Engenharia Civil da Faculdade de Ciência e Tecnologia da Universidade de Coimbra.

DOI:

https://doi.org/10.14195/1647-7723_12_2

Keywords:

Precipitation, trend, climate change, seasonality, mainland Portugal.

Abstract

This work investigates the presence of trends in the temporal structure of precipitation in Mainland Portugal. The study uses annual and monthly precipitation data from 1900 to 2000, recorded in 9 locations scattered over the territory. The data are analyzed using statistical methods (e.g. Mann-Kendall trend test). In order to take into account seasonality and serial correlation, the different months of the year were analyzed separately. The analyses of monthly data lead to a characterization of changes in the distribution of precipitation within the year over Mainland Portugal.

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Published

2005-09-09

Issue

No. 12 (2005)

Section

Articles

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows sharing the work with recognition of authorship and initial publication in Antropologia Portuguesa journal.