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Trends of change in precipitation and in drought susceptibility as assessed by thestandardized precipitation index (spi) in Northeast Portugal

2021Journal article Open access
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dc.contributor.authorRoyer, Ana Caroline
dc.contributor.authorFigueiredo, Tomás de
dc.contributor.authorFonseca, Felícia
dc.contributor.authorSchutz, Fabiana Costa de Araújo
dc.contributor.authorHernández, Zulimar
dc.date.accessioned2021-09-17T08:43:47Z
dc.date.available2021-09-17T08:43:47Z
dc.date.issued2021
dc.description.abstractMuch of NE Portugal is an area of arid zones with moderate to severe susceptibility to desertification and drought. A single and coupled trend analysis of precipitation and SPI drought index was performed in six weather stations in NE Portugal (representative of the regional climate domains), over a seventy-year time series (1931-2000). Precipitation over the study period decreased at most stations, with a more pronounced trend in the wetter areas, whereas in the semiarid areas an increase in precipitation was found. As well as the frequency of months with severe and extreme drought, the frequency of dry and wet months increased when the SPI timescale increased (1 to 6 months) and when a more recent computation period is considered (1931-1960 to 1971-2000). The results highlight a tendency for precipitation extremes to occur in NE Portugal. The general development of trends in precipitation and drought reported in this study confirm a progressive severity in the susceptibility to desertification affecting NE Portugalpt_PT
dc.description.abstractAs zonas áridas ocupam boa parte do NE Portugal, região de moderada a severa suscetibilidade à desertificação e seca. A análise de tendência da precipitação, isolada e combinada, e do índice de seca SPI foi realizada em seis estações meteorológicas no NE Portugal (representativas dos climas regionais), no período 1931-2000. A precipitação diminuiu na maioria das estações, de modo mais pronunciado nas áreas mais húmidas, enquanto nas do semiárido se verificou um aumento na precipitação. Tal como no caso da frequência de meses com seca severa e extrema, a frequência de meses secos e húmidos aumentou com o aumento da escala de tempo do SPI (de 1 a 6 meses) e considerando o período de cálculo mais recente (de 1931-1960 a 1971-2000). Os resultados evidenciam uma tendência para o aumento da ocorrência de extremos de precipitação. Estas tendências de mudança na precipitação e seca confirmam um aumento da severidade na suscetibilidade à desertificação que afeta o NE Portugal.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020). This research was partially funded by the EU FEDER Fund, through the POCTEP programme funding the TERRAMATER (grant0701_ TERRAMATER_1_E) research project. Furthermore, Royer A.C.’s contribution to the research was partially financially supported by the Instituto Politécnico de Bragança through the Double Diploma MSc programme in Environmental Technology with the Technological Federal University of Paraná, Brazil.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRoyer, Ana Carolina; Figueiredo, Tomás de; Fonseca, Felícia; Schutz, Fabiana Costa de Araújo; Hernandez Hernandez, Zulimar (2021). Trends of change in precipitation and in drought susceptibility as assessed by thestandardized precipitation index (spi) in Northeast Portugal = Tendências de mudança na precipitação e na susceptibilidade à seca avaliada pelo Índice de Precipitação Normalizada (SPI) no nordeste de Portugal. Territorium: Revista Internacional de Riscos. ISSN 0872-8941. 28:II, p. 13-26pt_PT
dc.identifier.doi10.14195/1647-7723_28-2_2pt_PT
dc.identifier.eissn1647-7723
dc.identifier.issn0872-8941
dc.identifier.urihttp://hdl.handle.net/10198/23919
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectClimate variabilitypt_PT
dc.subjectTime trendspt_PT
dc.subjectDrought and desertificationpt_PT
dc.subjectPrecipitation extremespt_PT
dc.subjectVariabilidade climáticapt_PT
dc.subjectTendências temporaispt_PT
dc.subjectSecapt_PT
dc.subjectPrecipitações extremaspt_PT
dc.subjectDesertificaçãopt_PT
dc.titleTrends of change in precipitation and in drought susceptibility as assessed by thestandardized precipitation index (spi) in Northeast Portugalpt_PT
dc.title.alternativeTendências de mudança na precipitação e na susceptibilidade à seca avaliada pelo Índice de Precipitação Normalizada (SPI) no nordeste de Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.conferencePlaceCoimbra, Portugalpt_PT
oaire.citation.endPage26pt_PT
oaire.citation.issue28pt_PT
oaire.citation.startPage13pt_PT
oaire.citation.titleTerritorium: Revista Internacional de Riscospt_PT
oaire.citation.volumeIIpt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRoyer
person.familyNameFigueiredo
person.familyNameFonseca
person.givenNameAna Caroline
person.givenNameTomás d'Aquino
person.givenNameFelícia
person.identifier1297327
person.identifier.ciencia-id721A-9374-4C35
person.identifier.ciencia-id961D-607D-51CC
person.identifier.orcid0000-0002-0746-185X
person.identifier.orcid0000-0001-7690-8996
person.identifier.orcid0000-0001-7727-071X
person.identifier.scopus-author-id54790554500
person.identifier.scopus-author-id36970960500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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