Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification

Detalhes bibliográficos
Autor(a) principal: Costa, Ana Cristina
Data de Publicação: 2012
Outros Autores: Soares, Amilcar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.1016/j.jaridenv.2012.05.005
Resumo: Costa, A. C., & Soares, A. (2012). Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification. Journal Of Arid Environments, 87, 8-18. https://doi.org/10.1016/j.jaridenv.2012.05.005
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spelling Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertificationClimate variabilityDesertification indicatorDirect sequential simulationDrynessGeostatisticsPortugalEcology, Evolution, Behavior and SystematicsEcologyEarth-Surface ProcessesSDG 15 - Life on LandSDG 13 - Climate ActionCosta, A. C., & Soares, A. (2012). Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification. Journal Of Arid Environments, 87, 8-18. https://doi.org/10.1016/j.jaridenv.2012.05.005Increased aridity is a robust proximate cause of desertification, both indirectly through greater rainfall variability and directly through prolonged droughts. The south of continental Portugal has large areas with high susceptibility to desertification. This study evaluates local dynamics in dryness in the south of Portugal based on the Aridity Intensity Index (AII), which is a numerical indicator of the degree of dryness of the climate and an indirect indicator of soil moisture availability. The AII was computed using daily precipitation data from stations with records within the 1940-1999 period in the south of Portugal. Annual scenarios of the AII were generated from 1940 to 1999 using direct sequential simulation (DSS). Those scenarios were then used to produce an additional set of maps that summarize their underlying space-time patterns. Two desertification indicators accounting for local dryness dynamics are proposed, namely the Dryness Susceptibility Indicator and the Dryness Trend Indicator. The results show that the southeast region is the most threatened by droughts and extreme dryness. Moreover, there is a tendency towards drier climatic conditions in coastal areas and in the centre of the study region. These findings are likely to have profound implications in agricultural planning and water supply management.NOVA Information Management School (NOVA IMS)RUNCosta, Ana CristinaSoares, Amilcar2019-07-26T22:39:59Z2012-12-012012-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article11application/pdfhttps://doi.org/10.1016/j.jaridenv.2012.05.005eng0140-1963PURE: 12358918http://www.scopus.com/inward/record.url?scp=84865448889&partnerID=8YFLogxKhttps://doi.org/10.1016/j.jaridenv.2012.05.005info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:34:55Zoai:run.unl.pt:10362/76646Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:35:41.370471Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
title Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
spellingShingle Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
Costa, Ana Cristina
Climate variability
Desertification indicator
Direct sequential simulation
Dryness
Geostatistics
Portugal
Ecology, Evolution, Behavior and Systematics
Ecology
Earth-Surface Processes
SDG 15 - Life on Land
SDG 13 - Climate Action
title_short Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
title_full Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
title_fullStr Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
title_full_unstemmed Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
title_sort Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification
author Costa, Ana Cristina
author_facet Costa, Ana Cristina
Soares, Amilcar
author_role author
author2 Soares, Amilcar
author2_role author
dc.contributor.none.fl_str_mv NOVA Information Management School (NOVA IMS)
RUN
dc.contributor.author.fl_str_mv Costa, Ana Cristina
Soares, Amilcar
dc.subject.por.fl_str_mv Climate variability
Desertification indicator
Direct sequential simulation
Dryness
Geostatistics
Portugal
Ecology, Evolution, Behavior and Systematics
Ecology
Earth-Surface Processes
SDG 15 - Life on Land
SDG 13 - Climate Action
topic Climate variability
Desertification indicator
Direct sequential simulation
Dryness
Geostatistics
Portugal
Ecology, Evolution, Behavior and Systematics
Ecology
Earth-Surface Processes
SDG 15 - Life on Land
SDG 13 - Climate Action
description Costa, A. C., & Soares, A. (2012). Local spatiotemporal dynamics of a simple aridity index in a region susceptible to desertification. Journal Of Arid Environments, 87, 8-18. https://doi.org/10.1016/j.jaridenv.2012.05.005
publishDate 2012
dc.date.none.fl_str_mv 2012-12-01
2012-12-01T00:00:00Z
2019-07-26T22:39:59Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.1016/j.jaridenv.2012.05.005
url https://doi.org/10.1016/j.jaridenv.2012.05.005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0140-1963
PURE: 12358918
http://www.scopus.com/inward/record.url?scp=84865448889&partnerID=8YFLogxK
https://doi.org/10.1016/j.jaridenv.2012.05.005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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