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Clifford, Heather; Spaulding, Nicole; Kurbatov, Andrei; More, Alexander; Korotkikh, Elena; Sneed, Sharon B; Handley, Kim M; Maasch, Kirk A; Loveluck, Christopher; Chaplin, Joyce; McCormick, Michael; Mayewski, Paul (2019): (Figure 3) Principle component analysis on annually averaged ICP-MS/IC measurements from ice core KCC from Colle Gnifetti. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.908564 (DOI registration in progress), In supplement to: Clifford, Heather; Spaulding, Nicole; Kurbatov, Andrei; More, Alexander; Korotkikh, Elena; Sneed, Sharon B; Handley, Michael; Maasch, Kirk A; Loveluck, Christopher; Chaplin, Joyce; McCormick, Michael; Mayewski, Paul (in press): A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps. Journal of Geophysical Research: Atmospheres

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Keyword(s):
Colle Gnifetti; ice core; Saharan dust
Coverage:
Latitude: 45.928930 * Longitude: 7.876260
Date/Time Start: 2013-08-04T00:00:00 * Date/Time End: 2013-08-11T00:00:00
Minimum Elevation: 4484.0 m * Maximum Elevation: 4484.0 m
Event(s):
Colle_Gnifetti_KCC * Latitude: 45.928930 * Longitude: 7.876260 * Date/Time Start: 2013-08-04T00:00:00 * Date/Time End: 2013-08-11T00:00:00 * Elevation: 4484.0 m * Recovery: 71.95 m (including 1.6 m snow pit) * Location: Colle Gnifetti, Monte Rosa, Swiss Alps * Device: Ice drill (ICEDRILL) * Comment: Storage: at -20°C in isolating polystyrene boxes. Institutes involved in drilling, processing and funding: Heidelberg University (D), Institute of Environmental Physics (leading institute); University of Bern (CH), Physics Institute, Climate and Environmental Physics (Remo Walther, Samuel Marending, Jakob Schwander); University of Maine (US), Climate Change Institute; University of Fribourg (CH); Alfred-Wegener-Institut Helmholtz-Zentrum für Meeres- und Polarforschung (D). Recovery and analysis of the KCC ice core, associated written records, and interpretation were supported by the Arcadia Fund of London, Harvard University, Initiative for the Science of the Human Past.
Comment:
Dataset corresponds to Figure 3 in the final manuscript. Annually averaged ICP-MS/IC measurements from 1780-2006 C.E. analyzed using a principle component analysis from the sci-kit (v0.20.2) module in Python3.6
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1AgeAgea ADClifford, Heather
2AGEAgeka BPClifford, HeatherGeocode
3Factor 1PC1Clifford, Heather47% Variance
4Factor 2PC2Clifford, Heather16% Variance
5Factor 3PC3Clifford, Heather12% Variance
Size:
908 data points

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