Ocean-atmosphere forcing of centennial hydroclimate variability in the Pacific Northwest

dc.contributor.authorSteinman, Byron A.
dc.contributor.authorAbbott, Mark B.
dc.contributor.authorMann, Michael E.
dc.contributor.authorOrtiz, Joseph D.
dc.contributor.authorFeng, Song
dc.contributor.authorPompeani, David P.
dc.contributor.authorStansell, Nathan D.
dc.contributor.authorAnderson, Lesleigh
dc.contributor.authorFinney, Bruce P.
dc.contributor.authorBird, Broxton W.
dc.contributor.departmentEarth Sciences, School of Scienceen_US
dc.date.accessioned2022-10-07T14:34:02Z
dc.date.available2022-10-07T14:34:02Z
dc.date.issued2014-03-11
dc.description.abstractReconstructing centennial timescale hydroclimate variability during the late Holocene is critically important for understanding large-scale patterns of drought and their relationship with climate dynamics. We present sediment oxygen isotope records spanning the last two millennia from 10 lakes, as well as climate model simulations, indicating that the Little Ice Age was dry relative to the Medieval Climate Anomaly in much of the Pacific Northwest of North America. This pattern is consistent with observed associations between the El Niño–Southern Oscillation (ENSO), the Northern Annular Mode, and drought as well as with proxy-based reconstructions of Pacific and Atlantic ocean-atmosphere variations over the past 1000 years. The large amplitude of centennial variability indicated by the lake data suggests that regional hydroclimate is characterized by longer-term shifts in ENSO-like dynamics and that an improved understanding of the centennial timescale relationship between external forcing and drought is necessary for projecting future hydroclimatic conditions in western North America.en_US
dc.description.sponsorshipU.S. National Science Foundation. Grant Numbers: AGS-1137750 (B.A.S.), EAR-0902200 (M.B.A.), ATM-0902133 (M.E.M.), EAR-0902753 (J.D.O.), AGS-1103316 (S.F.)en_US
dc.eprint.versionFinal published versionen_US
dc.identifier.citationSteinman, B. A., M. B. Abbott, M. E. Mann, J. D. Ortiz, S. Feng, D. P. Pompeani, N. D. Stansell, L. Anderson, B. P. Finney, and B.W. Bird (2014), Ocean-atmosphere forcing of centennial hydroclimate variability in the Pacific Northwest, Geophys. Res. Lett., 41, 2553–2560, doi:10.1002/2014GL059499.en_US
dc.identifier.urihttps://hdl.handle.net/1805/30254
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.relation.isversionof10.1002/2014GL059499en_US
dc.relation.journalGeophysical Research Lettersen_US
dc.rightsPublisher Policyen_US
dc.sourceAuthoren_US
dc.subjectPaleoclimatologyen_US
dc.subjectIsotope geochemistryen_US
dc.subjectLittle Ice Ageen_US
dc.subjectPaleolimnologyen_US
dc.subjectLake sedimenten_US
dc.subjectMedieval Climate Anomalyen_US
dc.titleOcean-atmosphere forcing of centennial hydroclimate variability in the Pacific Northwesten_US
dc.typeArticleen_US
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