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100 _aSmith, Stephen G
_952099
245 _a 4000-year record of hydrologic variability from the Olympic Mountains, Washington, USA/
260 _bSage,
_c2019.
300 _aVol 29, issue 8, 2019 : (1273-1291p.).
520 _a Sedimentological and geochemical analyses of gravity and piston cores retrieved from Lake Quinault, Washington, reveal an ~4000-year flood-dominated depositional record. Individual flood event layers are identified by combining core stratigraphy, sedimentology, and the ratio of incoherent to coherently scattered x-ray radiation (inc/coh) from µXRF (x-ray fluorescence) core scans. The inc/coh time series is used as a proxy for sediment grain size and, in combination with radiocarbon-anchored core age–depth models, enables the reconstruction of late-Holocene hydrologic variability for the Quinault River catchment. Decadal to centennial variability in inc/coh is interpreted to reflect trends in ocean-atmosphere teleconnections favorable for the formation of land-falling atmospheric rivers along the Pacific Ocean flank of the Olympic Mountains. Such processes likely modulate the rate of flooding and may explain notable increases in the frequency of flood event layers observed during the periods 2350–2450 cal. yr BP and the most recent century (AD 1910–2010). Understanding past hydrologic variability has important implications for the landscape and ecosystem response of Olympic Mountain catchments to future climate warming.
650 _aHolocene,
_950806
650 _a lacustrine sediments,
_952100
650 _aOlympic Peninsula,
_952101
650 _apaleoflood reconstructions,
_952102
650 _a μXRF core scanning
_952103
700 _aWegmann, Karl W
_952104
700 _aLeithold, Elana L
_952105
700 _aBohnenstieh, Delwayne R l
_952106
773 0 _012756
_916504
_dLondon: Sage Publication Ltd, 2019.
_tHolocene/
_x09596836
856 _uhttps://doi.org/10.1177/0959683619846975
942 _2ddc
_cART
999 _c12846
_d12846