Geographic variability in dust and temperature in climate scaling regimes over the Last Glacial Cycle

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dc.article.number106217
dc.contributor.authorAcuña Reyes Nicolas Martin
dc.contributor.authorvan't Wout, Elwin
dc.contributor.authorLovejoy, Shaun
dc.contributor.authorLambert Fabrice
dc.contributor.otherNCD Risk Factor Collaboration (NCD-RisC)
dc.date.accessioned2024-08-15T08:00:20Z
dc.date.available2024-08-15T08:00:20Z
dc.date.issued2024
dc.description.abstractTemperature and mineral dust records serve as valuable palaeoclimatic indicators for studying atmospheric variability across different temporal scales. In this study, we employed Haar fluctuations to analyse global spatiotemporal atmospheric variability over the Last Glacial Cycle, capturing both high- and low-frequency information within the records, regardless of uniform or non-uniform sampling. Furthermore, we utilised Haar fluctuations to compute fluctuation correlations, thereby enhancing our understanding of palaeoclimate dynamics.Our findings reveal a latitudinal dependency in the transition from macroweather to climate regimes (tau c), with polar regions experiencing shorter transitions compared to the tropics and mid-latitudes. These transitions occur at approximately 1/100th of glacial cycle length scales, suggesting a dominant forcing mechanism beyond Milankovitch cycles. Additionally, our analysis shows that polar regions have larger fluctuation amplitudes than lower latitudes as a consequence of the polar amplification effect. Furthermore, fluctuation correlations demonstrate faster synchronisation between the poles themselves compared to lower-latitude sites, achieving high correlation values within 10 kyr.Therefore, our findings suggest a consistent climate signal propagating from the poles to the Equator, representing the first empirical evidence supporting the hypothesis that the poles play a pivotal role as climate change drivers, influencing the variability in climatic transitions worldwide.
dc.description.funderANID through FONDECYT
dc.format.extent16 páginas
dc.fuente.origenWOS
dc.identifier.doi10.5194/cp-20-1579-2024
dc.identifier.eissn1814-9332
dc.identifier.issn1814-9324
dc.identifier.pubmedid15880187
dc.identifier.scopusidSCOPUS_ID:85195965239
dc.identifier.urihttps://doi.org/10.5194/cp-20-1579-2024
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87463
dc.identifier.wosidWOS:001274878600001
dc.information.autorucEscuela de Ingeniería; Acuña Reyes, Nicolas Martin; S/I; 246477
dc.information.autorucInstituto de Geografía; Lambert Fabrice; 0000-0002-2192-024X; 250043
dc.issue.numero7
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final1594
dc.pagina.inicio1579
dc.relation.ispartof92nd Meeting and Expo of the Endocrine Society (ENDO 2010), JUN 19-22, 2010, San Diego, CA
dc.revistaClimate of the Past
dc.rightsacceso abierto
dc.subjectAnti thyroglobulin antibodies
dc.subjectLobectomy
dc.subjectPersonalized medicine
dc.subjectQuality of Life
dc.subjectThyroid cancer
dc.subject.ddc550
dc.subject.deweyCiencias de la tierraes_ES
dc.titleGeographic variability in dust and temperature in climate scaling regimes over the Last Glacial Cycle
dc.typeartículo
dc.volumen20
sipa.codpersvinculados246477
sipa.codpersvinculados250043
sipa.indexWOS
sipa.trazabilidadCarga WOS-SCOPUS;15-08-2024
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