noaa-lake-21410 Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data Schweinsberg, A.D.; Briner, J.P.; Miller, G.H.; Bennike, O.; Thomas, E.K. Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data 2017-01-09 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/21410 Investigator A.D. Schweinsberg Investigator J.P. Briner Investigator G.H. Miller Investigator O. Bennike Investigator E.K. Thomas earth science paleoclimate paleolimnology manganese,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology silicon,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology titanium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology organic matter,sediment,null,weight percent,null,paleolimnology,null,loss on ignition,N,null earth science paleoclimate paleolimnology iron,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology magnetic susceptibility,wet sediment,null,dimensionless (SI system),null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology potassium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology density,wet sediment,null,gram per cubic centimeter,null,paleolimnology,null,gamma ray attenuation porosity evaluation,N,null earth science paleoclimate paleolimnology rubidium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology strontium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology water content,sediment,null,weight percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology calcium,sediment,null,count per second,null,paleolimnology,null,energy-dispersive x-ray fluorescence spectroscopy,N,measured on fresh sediment surface by scanning xrf (itrax) earth science paleoclimate paleolimnology magnetic susceptibility earth science paleoclimate paleolimnology age control earth science paleoclimate paleolimnology physical properties earth science paleoclimate paleolimnology geochemistry geoscientificInformation 9433 cal yr BP 82 cal yr BP Complete 70.21106 70.21106 -51.12485 -51.12485 Continent North America Greenland Sikuiui Lake>LATITUDE 70.21106>LONGITUDE -51.12485 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Avriel D. Schweinsberg, Jason P. Briner, Gifford H. Miller, Ole Bennike, and Elizabeth K. Thomas 2017 Geology 10.1130/G38114.1 http://geology.gsapubs.org/content/early/2017/01/09/G38114.1.abstract

Recent observations indicate that ice-ocean interaction drives much of the recent increase in mass loss from the Greenland Ice Sheet; however, the role of ocean forcing in driving past glacier change is poorly understood. To extend the observational record and our understanding of the ocean-cryosphere link, we used a multi-proxy approach that combines new data from proglacial lake sediments, 14C-dated in situ moss that recently emerged from beneath cold-based ice caps, and 10Be ages to reconstruct centennial-scale records of mountain glacier activity for the past ~10 k.y. in West Greenland. Proglacial lake sediment records and 14C dating of moss indicate the onset of Neoglaciation in West Greenland at ca. 5 ka with substantial snowline lowering and glacier expansion at ca. 3.7 ka followed by additional ice expansion phases at ca. 2.9, ca. 1.7, and ca. 1.4 ka and during the Little Ice Age. We find that widespread glacier growth at ca. 3.7 ka in West Greenland coincides with marked cooling and reduced strength of the West Greenland Current in Disko Bugt. The transition to cooler ocean conditions at ca. 3.7 ka identified in Disko Bugt is registered by marine proxy data farther afield in East Greenland and on the northwestern Icelandic shelf, implying large-scale paleoceanographic changes across the North Atlantic during this interval. The similarity between glacier change on West Greenland and multiple marine and terrestrial records across the North Atlantic suggests that glaciers are strongly influenced by changes in ocean circulation and consequently implies that the ocean-cryosphere teleconnection is a persistent feature of the Arctic system. STUDY NOTES: Sediment physical properties (LOI, MS, ITRAX XRF) data from core 13MCR-D3, Sikuiui Lake, Nuussuaq, western Greenland for the past 9,400 years, plus glacier-killed vegetation data from West Greenland

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/sikuiui2017loi.txt Formatted Text Data File; Sikuiui Lake LOI, MS, and Water Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/sikuiui2017moss.txt Formatted Text Data File; Disko Island and Nuussuaq Moss Exposure Age Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/sikuiui2017xrf.txt Formatted Text Data File; Sikuiui Lake Scanning XRF Elements Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11