# Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 2.0 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/21410 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/sikuiui2017moss.txt # # Original_Source_URL: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleolimnology # # Parameter_Keywords: physical properties, magnetic susceptibility, geochemistry #-------------------- # Contribution_Date # Date: 2017-01-09 #-------------------- # Title # Study_Name: Sikuiui Lake, Greenland 9,400 Year Sediment Physical Properties Data #-------------------- # Investigators # Investigators: Schweinsberg, A.D.; Briner, J.P.; Miller, G.H.; Bennike, O.; Thomas, E.K. #-------------------- # Description_and_Notes # Description: 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. #-------------------- # Publication # Authors: Avriel D. Schweinsberg, Jason P. Briner, Gifford H. Miller, Ole Bennike, and Elizabeth K. Thomas # Published_Date_or_Year: 2017-01-09 # Published_Title: Local glaciation in West Greenland linked to North Atlantic Ocean circulation during the Holocene # Journal_Name: Geology # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: 10.1130/G38114.1 # Online_Resource: http://geology.gsapubs.org/content/early/2017/01/09/G38114.1.abstract # Full_Citation: # 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. #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: 1204005 #------------------ # Site_Information # Site_Name: Disko Island and Nuussuaq # Location: North America>Greenland # Country: # Northernmost_Latitude: 71.079721 # Southernmost_Latitude: 69.210489 # Easternmost_Longitude: -51.041913 # Westernmost_Longitude: -55.067761 # Elevation: m #------------------ # Data_Collection # Collection_Name: Sikuiui2017moss # Earliest_Year: 5110 # Most_Recent_Year: 140 # Time_Unit: Cal. Year BP # Core_Length: # Notes: Many sites around the perimeter of ice caps on Disko Island and Nuussuaq #------------------ # Chronology_Information # Chronology: # # West Greenland moss dataset # # Sample # Sample ID Latitude Longitude Elev. Location Material Distance from ice edge (cm) Lab ID Fraction Modern d13C 14C Age Calibrated Age Calibrated Age Ranges # (deg. N) (deg. W) (m asl) Dated # 1 10Lyng-1 69.28833 -53.59625 795.4 Disko Island tundra moss 500 UCIAMS-84690 - - 3405 ± 25 3650 ± 40 3614 - 3625, 3628 - 3650, 3658 - 3691 # 2 10Lyng-2 69.29 -53.6004 823.5 Disko Island Polytrichum hyperboreum 200 UCIAMS-84699 - - 3280 ± 25 3520 ± 40 3475 - 3513, 3526 - 3558 # 3 13GROv-02 69.42538 -52.9941 950.9 Disko Island Polytrichum hyperboreum 400 OS-106358 0.6514 -25.03 3440 ± 25 3720 ± 80 3641 - 3672, 3677 - 3720, 3804 - 3806 # 4 13GROv-08 69.67813 -53.41667 972.7 Disko Island Polytrichum hyperboreum 20 OS-106271 0.9214 -23.21 660 ± 15 620 ± 50 569 - 582, 649 - 662 # 5 13GROv-12 69.67996 -53.43274 1052.5 Disko Island Ditrichum flexicaule 90 OS-109288 0.8275 -23.75 1520 ± 25 1420 ± 60 1356 - 1414, 1466 - 1475 # 6 13GROv-14 69.68389 -53.38237 843.7 Disko Island Polytrichum hyperboreum, Pohlia cruda 80 OS-106269 0.7822 -24.33 1970 ± 20 1920 ± 30 1890 - 1934, 1939 - 1941 # 7 13GROv-18 69.67835 -53.38693 901.3 Disko Island Polytrichastrum alpinum 80 OS-109289 0.9841 -24.14 130 ± 45 140 ± 130 13 - 40, 61 - 119, 122 - 147, 188 - 196, 212 - 233, 241 - 269 # 8 13GROv-20 69.66468 -53.36767 1004.5 Disko Island Pogonatum dentatum 200 OS-109290 0.6601 -26.73 3340 ± 25 3600 ± 40 3560 - 3615, 3623 - 3631 # 9 13GROv-23 69.66446 -53.357 1068.6 Disko Island Polytrichum hyperboreum 20 OS-106359 0.7053 -25.15 2800 ± 25 2900 ± 40 2865 - 2929, 2938 - 2941 # 10 13GROv-25 69.67398 -53.39941 867.9 Disko Island Polytrichum piliferum 40000 OS-109291 0.97 -24.94 245 ± 20 230 ± 70 160 - 161, 286 - 305 # 11 13GROv-26 69.67398 -53.39943 868.7 Disko Island Salix arctica 40000 OS-109292 0.9713 -26.78 235 ± 25 230 ± 70 155 - 166, 284 - 302 # 12 13GROv-27 69.67413 -53.40079 875.3 Disko Island Pohlia cruda 250 OS-106360 0.9583 -22.02 340 ± 25 420 ± 80 319 - 338, 348 - 392, 426 - 258 # 13 13GROv-31 69.80752 -52.81346 1294.1 Disko Island Racomitrium lanuginosum 250 OS-109293 0.7317 -22.88 2510 ± 25 2610 ± 110 2507 - 2529, 2536 - 2590, 2615 - 2634, 2690 - 2720 # 14 13GROv-35 69.85199 -52.91593 1412.8 Disko Island Racomitrium lanuginosum 20 OS-106361 0.801 -23.74 1780 ± 25 1680 ± 50 1626 - 1669, 1691 - 1727 # 15 13GROv-36 69.95591 -52.93549 1432.5 Disko Island Polytrichum hyperboreum. Pohlia cruda 20 OS-106272 0.6327 -26.37 3680 ± 35 3990 ± 20 3973 - 4014, 4018 - 4084 # 16 13GROv-37 69.95321 -52.94776 1423.6 Disko Island Polytrichum hyperboreum 150 OS-109336 0.6442 -24.65 3530 ± 35 3800 ± 70 3725 - 3752, 3760 - 3794, 3820 - 3868 # 17 13GROv-38 70.26311 -52.10853 1100.3 Nuussuaq Pohlia cruda 400 OS-106442 0.6562 -25.21 3380 ± 35 3630 ± 50 3579 - 3643, 3667 - 3682 # 18 13GROv-42 70.26632 -51.91516 1351.1 Nuussuaq Polytrichum hyperboreum 0 OS-109312 0.667 -26.17 3250 ± 30 3480 ± 70 3410 - 3423, 3445 - 3494, 3503 - 3507, 3532 - 3555 # 19 13GROv-43 70.25265 -51.81057 1242.2 Nuussuaq Polytrichum hyperboreum 140 OS-106362 0.6459 -25.96 3510 ± 30 3780 ± 60 3723 - 3797, 3816 - 3836 # 20 13GROv-44 70.24 -51.70829 1188.9 Nuussuaq Polytrichum piliferum 0 OS-109313 0.7004 -24.43 2860 ± 25 2970 ± 50 2926 - 3006, 3014 - 3023 # 21 13GROv-47 70.22529 -52.06295 1248.3 Nuussuaq Polytrichum piliferum 0 OS-106363 0.6542 -25.92 3410 ± 25 3660 ± 30 3632 - 3693 # 22 13GROv-49 70.19211 -51.97383 1363 Nuussuaq Polytrichum piliferum 2 OS-109365 0.6533 -25.25 3420 ± 30 3660 ± 40 3616 - 3621, 3631 - 3702 # 23 13GROv-51 70.13477 -51.997 1103 Nuussuaq Polytrichum hyperboreum 0 OS-106364 0.6846 -25.92 3040 ± 30 3260 ± 70 3182 - 3195, 3207 - 3255, 3291 - 3330 # 24 13GROv-52 70.13031 -51.72941 1277.3 Nuussuaq Polytrichum hyperboreum 30 OS-109314 0.5994 -26.29 4110 ± 50 4670 ± 140 4529 - 4647, 4673 - 4697, 4760 - 4805 # 25 13GROv-53 70.13076 -51.72757 1269.8 Nuussuaq Pogonatum urnigerum 0 OS-106365 0.5955 -25.31 4160 ± 30 4720 ± 100 4628 - 4637, 4642 - 4682, 4687 - 4730, 4732 - 4744, 4746 - 4762, 4798 - 4821 # 26 13GROv-54 70.15017 -51.4352 886.2 Nuussuaq Polytrichum hyperboreum 0 OS-106366 0.894 -25.08 900 ± 30 840 ± 70 767 - 802, 811 - 829, 860 - 904 # 27 13GROv-56 70.21493 -51.20802 1120.7 Nuussuaq Polytrichum hyperboreum 40 OS-106367 0.7358 -26.21 2460 ± 25 2580 ± 120 2459 - 2520, 2525 - 2539, 2587 - 2617, 2632 - 2699 # 28 13GROv-58 70.20984 -51.08499 843 Nuussuaq Polytrichum hyperboreum 10 OS-109459 0.6799 -26.28 3100 ± 20 3310 ± 50 3259 - 3289; 3333 - 3361 # 29 13GROv-60 70.21573 -51.07768 856.7 Nuussuaq Polytrichastrum alpinum 25 OS-106368 0.8257 -26.2 1540 ± 25 1450 ± 60 1389 - 1418, 1461 - 1484, 1489 - 1517 # 30 13GROv-61 70.21562 -51.0776 859 Nuussuaq Cassiope tetragona 0 OS-109315 0.8332 -23.5 1470 ± 30 1360 ± 30 1327 - 1383 # 31 13GROv-62 70.21913 -51.07858 874 Nuussuaq Pogonatum dentatum 0 OS-109366 0.82 -26 1590 ± 25 1470 ± 60 1416 - 1463, 1480 - 1497, 1516 - 1529 # 32 13GROv-64 70.21835 -51.06252 798.5 Nuussuaq Polytrichum hyperboreum 0 OS-106369 0.9679 -25.24 260 ± 20 300 ± 10 289 - 308 # 33 13GROv-65 70.21599 -51.05363 759.8 Nuussuaq Racomitrium canescens 120 OS-106370 0.9623 -25.81 310 ± 25 370 ± 60 308 - 326, 360 - 366, 374 - 429 # 34 13GROv-66 70.23652 -51.28443 1199.4 Nuussuaq Polytrichum hyperboreum 80 OS-109367 0.5753 -25.83 4440 ± 30 5110 ± 150 4969 - 5056, 5187 - 5214, 5224 - 5235, 5244 - 5260 # 35 13GROv-69 70.25624 -51.38556 1223.4 Nuussuaq Polytrichum piliferum 0 OS-109460 0.6386 -25.26 3600 ± 20 3920 ± 40 3872 - 3926, 3949 - 3960 # 36 13GROv-70 70.30714 -51.5923 1130.9 Nuussuaq Polytrichum hyperboreum 10 OS-106453 0.6554 -25.09 3390 ± 25 3640 ± 50 3594 - 3601, 3606 - 3644, 3665 - 3685 # 37 13GROv-72 70.12005 -51.15776 895.3 Nuussuaq Polytrichum hyperboreum 40 OS-106371 0.7131 -26.1 2710 ± 30 2810 ± 40 2773 - 2805, 2814 - 2843 # 38 13GROv-74 70.27839 -51.14834 1154 Nuussuaq Polytrichum piliferum 0 OS-106372 0.6758 -26.37 3150 ± 25 3380 ± 20 3355 - 3399, 3435 - 3435 # 39 13GROv-76 70.34024 -51.25237 1162 Nuussuaq Racomitrium lanuginosum 0 OS-106443 0.9512 -24.6 400 ± 20 490 ± 20 471 - 503 # 40 13GROv-80 70.37262 -51.40459 985.7 Nuussuaq Polytrichum piliferum 5 OS-109347 0.7658 -24.32 2140 ± 25 2180 ± 110 2065 - 2083, 2106 - 2153, 2276 - 2291 # 41 13GROv-82 70.36948 -51.42273 1093.1 Nuussuaq Polytrichum hyperboreum 15 OS-109368 0.731 -25.06 2520 ± 25 2620 ± 110 2516 - 2527, 2538 - 2588, 2616 - 2633, 2698 - 2729 # 42 13GROv-84 70.36973 -51.44805 1214.5 Nuussuaq Pogonatum urnigerum and Pohlia cruda 10 OS-106444 0.698 -24.18 2890 ± 30 3020 ± 50 2970 - 3063 # 43 13GROv-85 70.34594 -51.24895 1032 Nuussuaq Pogonatum urnigerum 5 OS-106445 0.8179 -24.55 1610 ± 20 1480 ± 60 1421 - 1434, 1437 - 1458, 1520 - 1545 # 44 13GROv-89 70.33872 -51.39925 1205.1 Nuussuaq Polytrichum piliferum 800 OS-109348 0.6527 -24.58 3430 ± 30 3680 ± 40 3636 - 3718 # 45 13GROv-92 70.33322 -51.36379 1192.6 Nuussuaq Polytrichum hyperboreum 0 OS-106446 0.7047 -26.3 2810 ± 35 2910 ± 40 2869 - 2952 # 46 13GROv-94 70.3272 -51.3151 1115 Nuussuaq Polytrichum hyperboreum 0 OS-109349 0.8551 -26.18 1260 ± 25 1220 ± 40 1181 - 1188, 1202 - 1258 # 47 13GROv-96 70.33069 -51.46105 921.3 Nuussuaq Polytrichum hyperboreum 0 OS-109369 0.7794 -23.69 2000 ± 30 1950 ± 40 1904 - 1907, 1924 - 1989 # 48 13GROv-99 70.32853 -51.45989 1015.3 Nuussuaq Polytrichum hyperboreum 0 OS-106501 0.7981 -25.7 1810 ± 25 1760 ± 50 1709 - 1742, 1754 - 1784, 1791 - 1810 # 49 13GROv-102 70.68745 -51.82557 1182.3 Uummannaq Pogonatum urnigerum 0 OS-106502 0.8529 -24.77 1280 ± 20 1220 ± 40 1184 - 1207, 1234 - 1265 # 50 13GROv-105 70.90286 -52.05152 1496.9 Uummannaq Pohlia cruda 500 OS-106503 0.6208 -21.83 3830 ± 35 4220 ± 70 4154 - 4259, 4264 - 4287 # 51 13GROv-106 70.90298 -52.05174 1493 Uummannaq Pohlia cruda 15 OS-106520 0.5989 -23.33 4120 ± 35 4690 ± 120 4569 - 4649, 4671 - 4700, 4759 - 4807 # 52 13GROv-107 71.00284 -51.69842 1402.9 Uummannaq Polytrichastrum alpinum 90 OS-106522 0.5978 -25.44 4130 ± 30 4690 ± 110 4579 - 4651, 4670 - 4702, 4758 - 4770, 4780 - 4808 # 53 13GROv-108 71.00279 -51.69784 1401.2 Uummannaq Pohlia cruda 200 OS-109461 0.62 -22.23 3840 ± 20 4220 ± 60 4160 - 4170, 4178 - 4200, 4227 - 4260, 4262 - 4288 # 54 13GROv-110 70.97365 -51.42092 1206.1 Uummannaq Polytrichum hyperboreum 50 OS-106504 0.8232 -23.7 1560 ± 25 1460 ± 60 1409 - 1421, 1433 - 1438, 1457 - 1520 # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # # Moss exposure ages (Data above in the Chronology Section) #