{ "dc.contributor.author": "Di Donato, Valentino" , "dc.contributor.author": "Martín Fernández, Josep Antoni" , "dc.contributor.author": "Comas Cufí, Marc" , "dc.contributor.author": "Jamka, Joanna" , "dc.date.accessioned": "2021-01-18T09:40:25Z" , "dc.date.available": "2021-01-18T09:40:25Z" , "dc.date.issued": "2018" , "dc.identifier.issn": "2279-7327" , "dc.identifier.uri": "http://hdl.handle.net/10256/18966" , "dc.description.abstract": "The modern analogue technique has been accordingly revised with compositional data analysis framework. The method adopts the Aitchison distance, obtained from isometric log-ratio coordinates of relative abundances, as a natural measure of similarity among assemblages. The number of analogues from which obtain the estimates was determined through leave-oneout verification of modern assemblages. Mean distances and local outlier factor are considered to evaluate the quality of palaeoestimates. The method has been tested on Atlantic Ocean and Mediterranean planktonic foraminiferal assemblages to reconstruct past sea surface temperatures (SST). In comparison with previous planktonic foraminiferal based reconstructions, the Portugal offshore SST record for the last 210 ka shows a higher coherence with other paleoclimate proxies (i.e. the stable isotope and alkenone records). In comparison with raw data analysis, CoDa-MAT yields lower estimates of the western Mediterranean last glacial period SST" , "dc.description.sponsorship": "This work has been supported by the project “CODARETOS” (Spanish Ministry of Economy and Competitiveness; Ref: MTM2015-65016-C2-1-R)." , "dc.format.extent": "15 p." , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.relation": "info:eu-repo/grantAgreement/MINECO//MTM2015-65016-C2-1-R/ES/ANALISIS DE DATOS COMPOSICIONALES Y METODOS RELACIONADOS/" , "dc.relation.isformatof": "Reproducció digital del document publicat a: https://doi.org/10.26382/AMQ.2018.05" , "dc.relation.ispartof": "Alpine and Mediterranean Quaternary, 2018, vol. 31, núm. 1, p. 59-73" , "dc.relation.ispartofseries": "Articles publicats (D-IMAE)" , "dc.rights": "Reconeixement-NoComercial 4.0 Internacional" , "dc.rights.uri": "http://creativecommons.org/licenses/by-nc/4.0" , "dc.source": "Di Donato, Valentino Martín Fernández, Josep Antoni Comas Cufí, Marc Jamka, Joanna 2018 Merging the components of a finite mixture using posterior probabilities Alpine and Mediterranean Quaternary 31 1 59 73" , "dc.subject": "Anàlisi de regressió" , "dc.subject": "Regression analysis" , "dc.subject": "Paleoecologia" , "dc.subject": "Paleoecology" , "dc.title": "Palaeoenvironmental Reconstructions Through Compositional Data Analysis" , "dc.type": "info:eu-repo/semantics/article" , "dc.rights.accessRights": "info:eu-repo/semantics/openAccess" , "dc.type.version": "info:eu-repo/semantics/publishedVersion" , "dc.identifier.doi": "https://doi.org/10.26382/AMQ.2018.05" , "dc.identifier.idgrec": "032506" , "dc.contributor.funder": "Ministerio de Economía y Competitividad (Espanya)" , "dc.type.peerreviewed": "peer-reviewed" , "dc.relation.ProjectAcronym": "ANALISIS DE DATOS COMPOSICIONALES Y METODOS RELACIONADOS" , "dc.identifier.eissn": "2279-7335" }