noaa-ocean-16398 Denmark Strait 2000 Year Multiproxy Sediment Data Andrews, J.T.; Jennings, A.E. Denmark Strait 2000 Year Multiproxy Sediment Data 2014-04-07 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/16398 Investigator J.T. Andrews Investigator A.E. Jennings earth science paleoclimate paleoceanography maghemite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,Average Degree of Freedom earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,Absolute Average Deviation earth science paleoclimate paleoceanography organic matter,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography siderite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography total diatoms,sediment,null,count,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography smectite,sediment,null,percent,null,paleoceanography,null,null,N,ferruginous earth science paleoclimate paleoceanography illite,sediment,null,percent,null,paleoceanography,null,null,N,1M; PD3B earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,degree of fit earth science paleoclimate paleoceanography mineral index,sediment,null,percent,null,paleoceanography,null,null,N,non-clay minerals earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,axis 3 (unitless) earth science paleoclimate paleoceanography provenance,null,null,dimensionless,null,paleoceanography,null,null,N,Fraction Nansen Fjord source earth science paleoclimate paleoceanography provenance,null,unspecified margin of error,dimensionless,null,paleoceanography,null,null,N,Fraction Nansen Fjord source error earth science paleoclimate paleoceanography calcite,sediment,null,weight percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcite,sediment,null,weight percent,null,paleoceanography,detrended,null,N,SSA1 earth science paleoclimate paleoceanography granule,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography microcline,sediment,null,percent,null,paleoceanography,null,null,N,intermediate microcline earth science paleoclimate paleoceanography illite,sediment,null,percent,null,paleoceanography,null,null,N,1M; (R>2; 88%I) earth science paleoclimate paleoceanography mineral index,sediment,null,percent,null,paleoceanography,null,null,N,minerals earth science paleoclimate paleoceanography dolomite,sediment,null,percent,null,paleoceanography,null,null,N,Fe-Dolomite earth science paleoclimate paleoceanography calcite,sediment,null,percent,null,paleoceanography,null,null,N,Mg-calcite earth science paleoclimate paleoceanography serpentine,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography grain size standard deviation,sediment,null,dimensionless,null,paleoceanography,null,null,N,sort; phi scale earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography provenance,null,unspecified margin of error,dimensionless,null,paleoceanography,null,null,N,Fraction Kangerluuaq Fjord source error earth science paleoclimate paleoceanography magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography inorganic carbon,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography cleavelandite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography amphibole,sediment,null,percent,null,paleoceanography,null,null,N,ferrotschermakite earth science paleoclimate paleoceanography pyrite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography clay,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography orthoclase,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography anorthite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography dolomite,sediment,null,percent,null,paleoceanography,null,null,N,total dolomite earth science paleoclimate paleoceanography silicon dioxide,sediment,null,percent,null,paleoceanography,null,null,N,reported as chert earth science paleoclimate paleoceanography muscovite,sediment,null,percent,null,paleoceanography,null,null,N,2M1 earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,axis 2 (unitless) earth science paleoclimate paleoceanography age,null,null,calendar year before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,smoothed,null,N,5 point smoothed earth science paleoclimate paleoceanography calcium carbonate,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography quartz,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography anorthoclase,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography dolomite,sediment,null,percent,null,paleoceanography,null,null,N,Fe-dolomite earth science paleoclimate paleoceanography clay,sediment,null,percent,null,paleoceanography,null,null,N,<2 earth science paleoclimate paleoceanography organic carbon,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography provenance,null,null,dimensionless,null,paleoceanography,null,null,N,Fraction Kangerluuaq plus Nansen Fjord source earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,detrended,null,N,SSA1 earth science paleoclimate paleoceanography carbon,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography sand,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography kaolinite,sediment,null,percent,null,paleoceanography,null,null,N,dry branch earth science paleoclimate paleoceanography saponite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography illite,sediment,null,percent,null,paleoceanography,null,null,N,1M; plus mica and smectite earth science paleoclimate paleoceanography illite,sediment,null,percent,null,paleoceanography,null,null,N,1M; (R>1; 70-80%I) earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,axis 1 (unitless) earth science paleoclimate paleoceanography sand,sediment,null,percent,null,paleoceanography,null,null,N,<2 earth science paleoclimate paleoceanography grain size mean,sediment,null,dimensionless,null,paleoceanography,null,null,N,phi scale earth science paleoclimate paleoceanography ice rafted debris,null,null,count,null,paleoceanography,null,null,N,>2mm earth science paleoclimate paleoceanography pyroxene,sediment,null,percent,null,paleoceanography,null,null,N,smooth robust earth science paleoclimate paleoceanography provenance,null,null,dimensionless,null,paleoceanography,null,null,N,Fraction unaccounted source earth science paleoclimate paleoceanography quartz,sediment,null,weight percent,null,paleoceanography,null,null,N,residual from detrend earth science paleoclimate paleoceanography calcite,sediment,null,weight percent,null,paleoceanography,detrended,null,N,null earth science paleoclimate paleoceanography mineral matter,sediment,null,percent,null,paleoceanography,null,null,N,total minerals earth science paleoclimate paleoceanography microcline,sediment,null,percent,null,paleoceanography,null,null,N,ordered microcline earth science paleoclimate paleoceanography oligoclase,sediment,null,percent,null,paleoceanography,null,null,N,Norway source earth science paleoclimate paleoceanography labradorite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography bytownite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography halite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography pyroxene,sediment,null,percent,null,paleoceanography,null,null,N,diopside earth science paleoclimate paleoceanography biotite series,sediment,null,percent,null,paleoceanography,null,null,N,1M earth science paleoclimate paleoceanography hematite group,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography silt,sediment,null,percent,null,paleoceanography,null,null,N,<2 earth science paleoclimate paleoceanography mineral matter,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography smectite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography provenance,null,null,dimensionless,null,paleoceanography,null,null,N,Fraction Kangerluuaq Fjord source earth science paleoclimate paleoceanography age,null,null,year Common Era,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcium carbonate,null,null,weight percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography silt,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography mineral index,sediment,null,percent,null,paleoceanography,null,null,N,clay minerals earth science paleoclimate paleoceanography magnetite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography chlorite,sediment,null,percent,null,paleoceanography,null,null,N,Fe-chlorite; Tusc earth science paleoclimate paleocean geochemistry geoscientificInformation -864 AD 1998 AD 2814 cal yr BP -48 cal yr BP Complete 63.21 68.26 -32.1 -23.85 -872 -321 Ocean Atlantic Ocean North Atlantic Ocean BS1191-K7>LATITUDE 68.26>LONGITUDE -32.1 Ocean Atlantic Ocean North Atlantic Ocean MD99-2322>LATITUDE 67.136>LONGITUDE -30.828 Ocean Atlantic Ocean North Atlantic Ocean JM96-1210>LATITUDE 68.183>LONGITUDE -29.6 Ocean Atlantic Ocean North Atlantic Ocean BS1191-K8>LATITUDE 68.133>LONGITUDE -31.862 Ocean Atlantic Ocean North Atlantic Ocean HU93-019B>LATITUDE 67.1>LONGITUDE -30.8 Ocean Atlantic Ocean North Atlantic Ocean MD99-2258>LATITUDE 63.963>LONGITUDE -24.443 Ocean Atlantic Ocean North Atlantic Ocean MD99-2269>LATITUDE 66.63>LONGITUDE -23.85 Ocean Atlantic Ocean North Atlantic Ocean B997-347>LATITUDE 63.21>LONGITUDE -24.17 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

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII J.T. Andrews and A.E. Jennings 2014 Climate of the Past 10 1 325-343 10.5194/cp-10-325-2014 http://www.clim-past.net/10/325/2014/cp-10-325-2014.html

In the area of Denmark Strait (~66° N), the two modes of the North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) are expressed in changes of the northward flux of Atlantic water and the southward advection of polar water in the East Iceland current. Proxies from marine cores along an environmental gradient from extensive to little or no drift ice, capture low frequency variations over the last 2000 cal yr BP. Key proxies are the weight% of calcite, a measure of surface water stratification and nutrient supply, the weight% of quartz, a measure of drift ice transport, and grain size. Records from Nansen and Kangerlussuaq fjords show variable ice-rafted debris (IRD) records but have distinct mineralogy associated with differences in the fjord catchment bedrock. A comparison between cores on either side of the Denmark Strait (MD99-2322 and MD99-2269) show a remarkable millennial-scale similarity in the trends of the weight% of calcite with a trough reached during the Little Ice Age. However, the quartz records from these two sites are quite different. The calcite records from the Denmark Strait parallel the 2000 yr Arctic summer-temperature reconstructions; analysis of the detrended calcite and quartz data reveal significant multi-decadal-century periodicities superimposed on a major environmental shift occurring ca. 1450 AD. STUDY NOTES: High resolution geochemical data from sediment cores in the Denmark Strait, North Atlantic covering the past ~2,000 years. Data are from figures from Andrews and Jennings 2014, as follows: Figure 5 JM96-1210 Nansen Fjord Figure 6A: BS1191-K7 Kangerlussuaq Fjord Figure 6B: BS1191-K8 Kangerlussuaq Fjord Figure 7: Sediment sources at site HU93030-019B/MD99-2322 Kangerlussuaq Trough. Figure 8: Calcite and quartz wt% data for BS1191-K7 HU93030-019B/MD99-2322 Kangerlussuaq Trough Figure 9: calcite and quartz data for North Iceland sites MD99-2263, MD99-2269 and B997-316PC Figure 10: Calcite and quartz data at 30-yr intervals for MD99-2269 and MD99-2322 All X-ray diffraction data for HU93030-019B and MD99-2322.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014xrd2322.txt Data File; MD99-2322 XRD GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014xrd-k8.txt Data File; Figure 6B BS1191-K8 XRD GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014xrd019b.txt Data File; HU93-019B XRD GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig10-2269.txt Data File; Figure 10 MD99-2269 Calcium Carbonate GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014xrd-1210.txt Data File; Figure 5 JM96-1210GS XRD GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig10-2322.txt Data File; Figure 10 MD99-2322 Calcite and Quartz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014ird-k7.txt Data File; Figure 6A BS1191-K7 Ice Rafted Debris GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014.xlsx Excel Data File; All Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig7.txt Data File; Figure 7 MD99-2322 Sediment Source GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig8.txt Data File; Figure 8 MD99-2322 Calcite and Quartz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014ird-k8.txt Data File; Figure 6B BS1191-K8 Ice Rafted Debris GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig9-347.txt Data File; Figure 9 B997-347 Calcite and Quartz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014gs-1210.txt Data File; Figure 5 JM96-1210GS Grain Size GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014fig9-2258.txt Data File; Figure 9 MD99-2258 Calcite and Quartz GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/andrews2014/andrews2014xrd-k7.txt Data File; Figure 6A BS1191-K7 XRD USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11