# West Greenland 9,500 Year Multiproxy Lake Sediment Data #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/13116 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-lake-13116.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Paleolimnology # # Dataset_DOI: 10.25921/v15d-7q90 # # Science_Keywords: PAGES Arctic 2k, PAGES 2k Network #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/greenland/westgreenland2012-SS32-loi-noaa.txt # Data_Download_Description: NOAA Template File; Loss-On-Ignition Data # #-------------------- # Contribution_Date # Date: 2012-06-30 #-------------------- # File_Last_Modified_Date # Date: 2024-09-09 #-------------------- # Title # Study_Name: West Greenland 9,500 Year Multiproxy Lake Sediment Data #-------------------- # Investigators # Investigators: Perren, B.(https://orcid.org/0000-0001-6089-6468); Anderson, N.J.(https://orcid.org/0000-0002-0037-0306); Douglas, M.S.V.; Fritz, S.C.(https://orcid.org/0000-0002-4423-4189) #-------------------- # Description_Notes_and_Keywords # Description: Multiproxy Holocene sediment data from 3 lakes in west Greenland. Paleoenvironmental proxies measured include diatoms, organic content, and spectrally inferred sediment chlorophyll-a. West Greenland lake locations: # SS32(Nunatak): 66.97°N, 49.80°W, 470m elevation, 21m water depth. # SS16: 66.91°N, 50.46°W, 477m elevation, 12m water depth. # SS49: 66.86°N, 52.64°W, 330m elevation, 10m water depth. #-------------------- # Publication # Authors: Perren, B.B., N.J. Anderson, M.S.V. Douglas, and S.C. Fritz # Journal_Name: Journal of Paleolimnology # Published_Title: The influence of temperature, moisture, and eolian activity on Holocene lake development in West Greenland # Published_Date_or_Year: 2012 # Volume: 48 # Pages: 223-239 # Issue: 1 # Report_Number: # DOI: 10.1007/s10933-012-9613-6 # Full_Citation: # Abstract: Holocene paleolimnological records (diatoms, organic content, spectrally inferred sediment chlorophyll-a) from three West Greenland lakes (~67°N) situated along a transect from the outer coast to a nunatak at the periphery of the Greenland Ice Sheet are used to explore the nature of regional postglacial lake development and its relationship to Holocene climate evolution. The lakes were deglaciated asynchronously by approximately 4 ka (earliest on the coast) and thus their sediment records document different starting points of Holocene ontogeny, both temporally and paleoclimatically. Despite similar time-transgressive characteristics of the diatom stratigraphies, overarching climatic factors, principally effective moisture, and eolian inputs, govern individual lake development. The transition to Neoglaciation between 5.6 and 4 ka BP marks a shift toward a cooler, moister, windier climate from the aridity and higher temperatures of the mid-Holocene (8–6 ka BP). A shift toward increased aridity, windiness, and eolian activity is documented in the interior lakes over the last 500 years. These lake records demonstrate the sensitivity of freshwater lakes in arid regions to changes in effective moisture and highlight the role of wind and eolian activity in Arctic lake environments. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: SS32 # Location: Greenland # Northernmost_Latitude: 66.97 # Southernmost_Latitude: 66.97 # Easternmost_Longitude: -49.8 # Westernmost_Longitude: -49.8 # Elevation_m: 470 #-------------------- # Data_Collection # Collection_Name: SS32-2012 LOI # First_Year: 5615 # Last_Year: -33 # Time_Unit: cal yr BP # Core_Length_m: # Parameter_Keywords: physical properties # Notes: #-------------------- # Chronology_Information # Chronology: Radiocarbon # Chronology_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/templates/noaa-wds-paleo-14c-terms.csv # Chronology_Download_Description: Radiocarbon terms and definitions. # Chronology_Notes: # Rejection_Rationale: # Reservoir_Method: The offset between the younger base-insoluble fraction (humin) and the humic acid dates was 230 14C years. This correction was applied to the remaining dates. # Calibration_Method: Calib 5.0.1 (Stuiver and Reimer 1993) # Age_Model_Method: CLAM (Blaauw 2010) # Missing_Values: NaN # Chronology_Table: # lab_code depth_end_cm depth_start_cm material_dated age_14C_BP1950 age_14C_1s_yr res_age_yr age_calib_BP1950 calib_curve # UA-32355 35 36 humic acid 2610 35 230 2746 IntCal # UA-32356 49 50 humin 3220 40 3437 IntCal # UA-32357 49 50 humic acid 3450 40 230 3718 IntCal # UA-32358 76 77 humic acid 4920 45 230 5648 IntCal # UA-32359 78 79 humic acid 5105 40 230 5821 IntCal #-------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## depth_top_cm depth at sample end,,,centimeter,,paleolimnology,,,N, ## age_min_calBP age,,unspecified error lower bound,calendar year before present,,paleolimnology,,,N,cal min ## age_max_calBP age,,unspecified error upper bound,calendar year before present,,paleolimnology,,,N,cal max ## age_calBP age,,,calendar year before present,,paleolimnology,,,N, ## LOI organic matter,sediment,,percent,,paleolimnology,,loss on ignition,N, #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: depth_top_cm age_min_calBP age_max_calBP age_calBP LOI 0.5 -36 -30 -33 12 1 -16 -4 -10 11.95652174 1.5 3 27 15 10.56338028 2 22 78 50 9.034267913 2.5 53 135 93 9.900990099 3 89 170 129 9.56284153 3.5 125 206 165 7.960199005 4 161 242 201 8.533333333 4.5 197 278 237 9.324758842 5 233 314 273 9.275362319 5.5 269 350 309 10.23391813 6 304 387 344 7.725321888 6.5 340 424 380 8.085106383 7 375 461 416 9.07079646 7.5 410 498 452 8.779443255 8 446 536 488 9.2760181 8.5 481 574 524 8.083140878 9 516 612 560 7.789473684 9.5 551 651 596 6.739130435 10 587 690 632 7.438016529 11 657 768 704 6.711409396 12 727 850 776 6.666666667 13 797 934 848 6.072106262 14 867 1016 920 4.060913706 15 937 1096 992 6.138613861 16 1008 1175 1064 5.084745763 17 1078 1255 1135 5.805243446 18 1148 1334 1207 6.50887574 19 1218 1413 1279 4.47284345 20 1288 1493 1351 -99.9 21 1358 1572 1423 -99.9 22 1428 1651 1495 -99.9 23 1497 1731 1567 5.408682998 24 1567 1811 1639 5.478315003 25 1637 1890 1711 4.271912467 26 1706 1970 1783 3.981164384 27 1776 2049 1855 4.247973582 28 1845 2128 1927 4.53355545 29 1915 2207 1998 6.403591682 30 1984 2286 2070 5.345211581 31 2054 2366 2142 5.816023739 32 2123 2445 2214 5.532985104 33 2192 2525 2286 5.022364217 34 2261 2605 2358 5.965526528 35 2330 2684 2430 5.283897546 36 2408 2739 2502 6.02367688 37 2485 2796 2575 5.314497141 38 2561 2852 2647 4.761904762 39 2636 2907 2719 4.408163265 40 2711 2957 2792 5.219322599 41 2786 3009 2864 4.613323124 42 2862 3057 2936 4.325054908 43 2936 3107 3008 4.96054115 44 3011 3170 3081 4.94458653 45 3086 3239 3153 6.041584935 46 3158 3313 3225 7.802639128 47 3230 3392 3298 5.867346939 48 3299 3475 3370 4.050907962 49 3367 3557 3442 5.19183922 50 3443 3626 3516 4.977731203 51 3519 3695 3589 4.749523314 52 3594 3763 3663 5.880330124 53 3668 3830 3736 6.24303233 54 3741 3900 3809 4.688076781 55 3813 3970 3883 3.468455609 56 3886 4041 3956 3.749310788 57 3958 4112 4029 2.88756251 58 4030 4183 4103 2.37566228 59 4103 4256 4176 2.596714361 60 4176 4330 4250 2.715151515 61 4248 4405 4323 2.930473089 62 4320 4481 4396 2.714151239 63 4392 4557 4470 2.710516805 64 4465 4634 4543 2.440633245 65 4537 4712 4616 2.009580558 66 4608 4790 4690 2.731621349 67 4680 4868 4763 1.570680628 68 4752 4946 4837 1.338028169 69 4821 5027 4910 1.035487002 70 4891 5108 4983 0.811148087 71 4961 5188 5057 0.919811321 72 5031 5267 5130 0.811716958 73 5100 5346 5203 3.776794828 74 5170 5425 5277 9.186798231 75 5239 5504 5350 9.547511312 76 5309 5583 5423 11.23595506 77 5446 5613 5519 8.951546674 78 5485 5711 5615 9.333752357