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dc.contributor.authorChiverrell, Richard
dc.contributor.authorMacDonald, Neil
dc.contributor.authorHooke, Janet
dc.contributor.authorWelsh, Katharine, E.
dc.contributor.authorPiliposian, G
dc.contributor.authorCroudace, Ian
dc.contributor.authorSchillereff, Daniel
dc.date.accessioned2019-08-12T13:46:14Z
dc.date.available2019-08-12T13:46:14Z
dc.date.issued2019-07-30
dc.identifier.citationSchillereff, D. N., Chiverrell, R. C., Macdonald, N., Hooke, J. M., Welsh, K. E., Piliposian, G., & Croudace, I. W. (2019). Convergent human and climate forcing of late-Holocene flooding in Northwest England. Global and Planetary Change, 182, 102998.en_US
dc.identifier.issn0921-8181
dc.identifier.doi10.1016/j.gloplacha.2019.102998
dc.identifier.urihttp://hdl.handle.net/10034/622493
dc.description.abstractConcern is growing that climate change may amplify global flood risk but short hydrological data series hamper hazard assessment. Lake sediment reconstructions are capturing a fuller picture of rare, high-magnitude events but the UK has produced few lake palaeoflood records. We report the longest lake-derived flood reconstruction for the UK to date, a 1500-year record from Brotherswater, northwest England. Its catchment is well-suited physiographically to palaeoflood research, but its homogeneous, dark brown sediment matrix precludes visual identification of flood layers. Instead, an outlier detection routine applied to high-resolution particle size measurements showed a >90% match, in stratigraphic sequence, to measured high river flows. Our late-Holocene palaeoflood reconstruction reveals nine multi-decadal periods of more frequent flooding (CE 510-630, 890-960, 990-1080, 1470-1560, 1590-1620, 1650-1710, 1740-1770, 1830-1890 and 1920-2012), and these show a significant association with negative winter North Atlantic Oscillation (wNAO) phasing and some synchrony with solar minima. These flood-rich episodes also overlap with local and regional land-use intensification, which we propose has amplified the flood signal by creating a more efficient catchment sediment conveyor and more rapid hillslope-channel hydrological connectivity. Disentangling anthropogenic and climatic drivers is a challenge but anthropogenic landscape transformation should evidently not be underestimated in palaeoflood reconstructions. Our paper also demonstrates that flood histories can be extracted from the numerous lakes worldwide containing organic-rich, visually homogeneous sediments. This transformative evidence base should lead to more reliable assessments of flood frequency and risks to ecosystems and infrastructure.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0921818118307252?via%3Dihuben_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectFlood hazarden_US
dc.subjectHuman activityen_US
dc.subjectLake sedimentsen_US
dc.subjectNorth Atlantic Oscillationen_US
dc.subjectPaleofloodsen_US
dc.subjectSolar forcingen_US
dc.titleConvergent human and climate forcing of late-Holocene flooding in northwest Englanden_US
dc.typeArticleen_US
dc.identifier.eissn1872-6364
dc.contributor.departmentKings College London; University of Liverpool, University of Liverpool, University of Liverpool, University of Chester, University of Liverpool, University of Southamptonen_US
dc.identifier.journalGlobal and Planetary Changeen_US
dc.date.accepted2019-07-25
or.grant.openaccessYesen_US
rioxxterms.funderDNS acknowledges the support of a Graduate Bursary from the University of Liverpool and Kinsey Fund. Natural England; This work was supported by the NERC Radiocarbon Facility NRCF010001 (allocation number 1706.0413) and in part supported by a NERC Urgency Grant to RCC (NE/P000118/1); KEW gratefully acknowledges financial support from the Manchester Geographical Society to conduct fieldwork and 210Pb dating.en_US
rioxxterms.identifier.projectExternalen_US
rioxxterms.versionAMen_US
rioxxterms.licenseref.startdate2021-07-30
refterms.dateFCD2019-08-05T19:13:03Z
refterms.versionFCDAM


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