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When eastern India oscillated between desert versus savannah‐dominated vegetation

2022Journal article Open Access
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dc.contributor.authorZorzi, Coralie
dc.contributor.authorDesprat, Stéphanie
dc.contributor.authorClément, Charlotte
dc.contributor.authorThirumalai, Kaustubh
dc.contributor.authorOliveira, Dulce
dc.contributor.authorAnupama, Krishnamurthy
dc.contributor.authorPrasad, Srinivasan
dc.contributor.authorMartinez, Philippe
dc.date.accessioned2022-12-19T16:46:30Z
dc.date.available2022-12-19T16:46:30Z
dc.date.issued2022
dc.description.abstractDuring the last glacial period, the tropical hydrological cycle exhibited large variability across orbital and millennial timescales. However, the response of the Indian summer monsoon (ISM), its related impact on terrestrial ecosystems, and associated forcing mechanisms remain controversial. Here we present a marine record of pollen-inferred vegetation changes suggesting that eastern India shifted from woody-savanna mosaics during Marine Isotopic Stage 3 to grasslands during the Last Glacial Maximum resulting from large-scale drying. Our data shows that ISM maximum is in phase with obliquity and precession maxima suggesting a dominant role of the Indian Ocean interhemispheric temperature gradient on glacial ISM variability. Persistent and abrupt dryland expansions of varying magnitude suggest rapid-scale onset of aridity during Heinrich Stadial events and during the Toba eruption. We propose that the amplitude of ISM drought events are initiated by high latitude and volcanic forcings, although modulated by precession.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1029/2022GL099417pt_PT
dc.identifier.eissn1944-8007
dc.identifier.urihttp://hdl.handle.net/10400.1/18668
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmer Assoc Advancement Sciencept_PT
dc.relationIndian monsoon and vegetation dynamics: lessons from two contrasting glacial-interglacial cycles of the Middle Pleistocene
dc.relationAlgarve Centre for Marine Sciences
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIndian summer monsoonpt_PT
dc.subjectLast glacial periodpt_PT
dc.subjectPollen analysispt_PT
dc.subjectHeinrich Stadialspt_PT
dc.subjectMillennial and orbital variationspt_PT
dc.titleWhen eastern India oscillated between desert versus savannah‐dominated vegetationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleIndian monsoon and vegetation dynamics: lessons from two contrasting glacial-interglacial cycles of the Middle Pleistocene
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FCTA-CLI%2F0612%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F02208%2F2017%2FCP1391%2FCT0004/PT
oaire.citation.issue16pt_PT
oaire.citation.titleGeophysical Research Letterspt_PT
oaire.citation.volume49pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 2017
person.familyNameOliveira
person.givenNameDulce
person.identifierR-001-TTY
person.identifier.ciencia-idA119-CA60-3C50
person.identifier.orcid0000-0002-3016-532X
person.identifier.ridH-9855-2018
person.identifier.scopus-author-id56688169500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa18515cc-4754-4270-b542-e01bc11347d8
relation.isAuthorOfPublication.latestForDiscoverya18515cc-4754-4270-b542-e01bc11347d8
relation.isProjectOfPublication7f244a5f-1aa8-426f-a852-17259a8937eb
relation.isProjectOfPublicationfafa76a6-2cd2-4a6d-a3c9-772f34d3b91f
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