Afficher la notice abrégée

dc.contributorFacultad de Ciencias Biologicas y Ambientaleses_ES
dc.contributor.authorGonzález Pérez, Alejandro 
dc.contributor.authorÁlvarez Esteban, Ramón 
dc.contributor.authorVelázquez, Alejandro
dc.contributor.authorPenas Merino, Ángel 
dc.contributor.authorRío González, Sara del 
dc.identifier.citationGonzález-Pérez, A., Álvarez-Esteban, R., Velázquez, A., Penas, A., & del Río, S. (2023). Bioclimatic drought and its trends in California state (u.S.). Ecological Indicators, 153(110426), 110426.
dc.description.abstract[EN] Drought occurs naturally all over the world. Global warming has led an increase in the areas affected by this phenomenon. The study of drought involves the analysis of indicators and indices used to assess changes in the hydrological cycle of a region. A large number of indices developed for drought monitoring are based on meteorological and hydrological variables. This research has applied the Ombroxeric Index for the first time in California. It is based on the concept of ombroxericity: a condition of the territory characterised from an ombrothermic point of view, which can develop in relatively humid areas/zones, depending on the time scale of the study (i.e. monthly, seasonal or annual basis). Temperatures and precipitation from 180 meteorological stations have been considered for a period of observation from 1980 to 2016. In order to know the evolution of this index, a modified trend analysis based on the Mann-Kendall test and a modified Sen slope analysis were used. Empirical Bayesian Kriging was applied as an interpolation technique. Results are presented in both surface and contour maps. California showed a wide range of ombroxeric levels that went from upper strong dry in northern zones, to lower weak arid. Trend results showed an increase in bioclimatic drought throughout the whole State. In addition, summer showed the highest levels on the Ombroxeric Index. An increase in drought trends was observed at the seasonal level, being more pronounced in summer and spring. In both cases are increases in the central (+5 and +3.6 units year−1 respectively) and the southern (+4 and +4.5 units year−1 respectively) areas of the State. Increasing frequency and severity of droughts could have implications for the management of water resources and the survival of Californian vegetation types, such as conifers.es_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subject.otherClimate changees_ES
dc.subject.otherEmpirical Bayesian Kriginges_ES
dc.subject.otherOmbroxeric Indexes_ES
dc.subject.otherModified Mann-Kendalles_ES
dc.subject.otherModified Sen’s slopees_ES
dc.titleBioclimatic drought and its trends in California State (U.S.)es_ES
dc.relation.projectIDJunta de Castilla y León /487971es_ES
dc.journal.titleEcological Indicatorses_ES
dc.subject.unesco2502.03 Bioclimatologíaes_ES

Fichier(s) constituant ce document


Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepté là où spécifié autrement, la license de ce document est décrite en tant que Attribution-NonCommercial-NoDerivatives 4.0 Internacional