noaa-lake-20126 Lake N3, Greenland 7,800 Year Leaf Wax d2H and Geochemical Data Thomas, E.K.; Briner, J.P.; Ryan-Henry, J.J.; Huang, Y. Lake N3, Greenland 7,800 Year Leaf Wax d2H and Geochemical Data 2016-05-04 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20126 Investigator E.K. Thomas Investigator J.P. Briner Investigator J.J. Ryan-Henry Investigator Y. Huang earth science paleoclimate paleolimnology age,null,range lower bound,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,based on mean sediment age earth science paleoclimate paleolimnology biogenic silica,sediment,one standard deviation,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 13C,organic matter,null,per mil,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 2H,C26 n-alkanoic acid,null,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 2H,C24 n-alkanoic acid,null,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,composited,null,N,null earth science paleoclimate paleolimnology biogenic silica,sediment,null,percent,null,paleolimnology,null,null,N,replicate earth science paleoclimate paleolimnology nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology delta 15N,organic matter,null,per mil,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology organic matter,sediment,null,percent,null,paleolimnology,null,loss on ignition,N,550 degrees C earth science paleoclimate paleolimnology mineral matter,sediment,null,percent,null,paleolimnology,null,null,N,total sediment minus biogenic silica minus carbon minus nitrogen earth science paleoclimate paleolimnology age,null,range upper bound,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 2H,C26 n-alkanoic acid,one standard deviation,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology number of samples,null,null,null,null,paleolimnology,null,null,N,C26 n-alkanoic acid earth science paleoclimate paleolimnology delta 2H,C28 n-alkanoic acid,null,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology biogenic silica,sediment,null,percent,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology number of samples,null,null,null,null,paleolimnology,null,null,N,C28 n-alkanoic acid earth science paleoclimate paleolimnology delta 2H,C24 n-alkanoic acid,one standard deviation,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 2H,C28 n-alkanoic acid,one standard deviation,per mil VSMOW,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology organic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology carbon/nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null earth science paleoclimate paleolimnology number of samples,null,null,null,null,paleolimnology,null,null,N,C24 n-alkanoic acid earth science paleoclimate paleolimnology geochemistry geoscientificInformation sea ice 7901 cal yr BP -51 cal yr BP Complete 68.6394 68.6394 -50.9869 -50.9869 56 56 Continent North America Greenland Lake N3>LATITUDE 68.6394>LONGITUDE -50.9869 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 Elizabeth K. Thomas, Jason P. Briner, John J. Ryan-Henry and Yongsong Huang 2016 Geophysical Research Letters 10.1002/2016GL068513 http://onlinelibrary.wiley.com/doi/10.1002/2016GL068513/full

Precipitation is predicted to increase in the Arctic as temperature increases and sea ice retreats. Yet, the mechanisms controlling precipitation in the Arctic are poorly understood and quantified only by the short, sparse instrumental record. We use hydrogen isotope ratios (d2H) of lipid biomarkers in lake sediments from western Greenland to reconstruct precipitation seasonality and summer temperature during the past 8 kyr. Aquatic biomarker d2H was 100 per mil more negative from 6 to 4ka than during the early and late Holocene, which we interpret to reflect increased winter snowfall. The middle Holocene also had high summer air temperature, decreased early winter sea ice in Baffin Bay and the Labrador Sea, and a strong, warm West Greenland Current. These results corroborate model predictions of winter snowfall increases caused by sea ice retreat, and furthermore suggest that warm currents advecting more heat into the polar seas may enhance Arctic evaporation and snowfall. STUDY NOTES: Aquatic plant leaf wax hydrogen isotope (d2H) and geochemical data from sediments collected in lake N3, western Greenland. Data include hydrogen isotopes of the C24, C26, and C28 n-alkanoic acids (aquatic plant biomarkers), plus Loss-On-Ignition, Biogenic Silica, Carbon and Nitrogen concentrations and isotopes (d13C and d15N), and mineral matter concentration.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016mineral.txt Data File; Lake N3 Mineral Matter Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016cn.txt Data File; Lake N3 Carbon and Nitrogen Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016c26d2h.txt Data File; Lake N3 d2H of C26 n-alkanoic Acid GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016loi.txt Data File; Lake N3 Loss-On-Ignition Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016c24d2h.txt Data File; Lake N3 d2H of C24 n-alkanoic Acid GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016biosi.txt Data File; Lake N3 Biogenic Silica Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/n3-2016c28d2h.txt Data File; Lake N3 d2H of C28 n-alkanoic Acid USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11