# 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-SS49-chloro-noaa.txt # Data_Download_Description: NOAA Template File; Chlorophyll-A 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: SS49 # Location: Greenland # Northernmost_Latitude: 66.86 # Southernmost_Latitude: 66.86 # Easternmost_Longitude: -52.64 # Westernmost_Longitude: -52.64 # Elevation_m: 330 #-------------------- # Data_Collection # Collection_Name: SS49-2012 chloro # First_Year: 9443 # Last_Year: -47 # Time_Unit: cal yr BP # Core_Length_m: # Parameter_Keywords: geochemistry # 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: # Calibration_Method: Calib 5.0.1 (Stuiver and Reimer 1993) # Age_Model_Method: monotone Hermite cubic spline interpolation between dates following Fritsch and Carlson (1980) wherein all age reversals were removed # 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 # AA50045 25 26 gyttja 1516 37 334 1399 IntCal # AA50046 52.5 53.5 gyttja 3465 41 334 3743 IntCal # AA50053 80.5 81.5 wood 3872 42 0 4306 IntCal # AA50047 81.5 82.5 gyttja 4232 43 334 4753 IntCal # AA50048 112.5 113.5 gyttja 4988 44 334 5717 IntCal # AA50049 134.7 135.7 gyttja 5830 47 334 6641 IntCal # A50050 163.7 164.7 gyttja 7212 55 334 8028 IntCal # AA50051 189.7 190.7 gyttja 7975 72 334 8834 IntCal # A50052 208.7 209.7 gyttja 8739 57 334 9724 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, ## chla chlorophyll,sediment,,,,paleolimnology,,spectrophotometry,N,inferred chlorophyll a #-------------------- # 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 chla 0 -50 -44 -47 0.09460567 1 -7 4 -1 0.075701534 1.5 13 29 21 0.073280703 2 32 54 43 0.076283814 2.5 51 78 65 0.066368945 3 69 103 86 0.062253943 3.5 88 127 107 0.076366363 4 106 151 128 0.06513039 4.5 123 175 149 0.063946675 5 141 199 170 0.066314905 5.25 149 210 180 0.056494676 5.5 158 223 190 0.063617941 6 175 247 211 0.063087311 6.5 192 270 231 0.055339564 7 209 294 252 0.059979327 7.5 226 317 272 0.060524612 8 243 341 292 0.062506984 8.5 260 364 312 0.057981618 9 277 388 332 0.05226014 9.25 284 398 342 0.053501883 9.5 294 411 352 0.059462495 10 311 435 373 0.052782512 10.5 328 458 393 0.048815854 11 345 482 413 0.050407038 11.5 362 506 434 0.055272913 12 379 530 455 0.050210915 12.5 397 554 475 0.051283789 13 415 578 496 0.049442891 13.25 423 588 506 0.06117051 13.5 433 602 517 0.052789922 14 452 626 539 0.054498784 14.5 470 651 561 0.051602382 15 489 676 582 0.054651916 15.5 509 701 605 0.055174536 16 529 726 627 0.049815789 16.5 549 751 650 0.052466657 17 570 777 673 0.049089672 17.25 578 787 684 0.05784826 17.5 591 803 697 0.048546199 18 612 829 721 0.04925754 18.5 634 856 745 0.051245861 21.25 765 1005 886 0.044695939 25.25 997 1248 1123 0.043422817 29.25 1294 1535 1414 0.034924983 33.25 1646 1855 1751 0.039766521 37.25 2021 2201 2113 0.037208219 41.25 2393 2563 2480 0.041040156 45.25 2739 2915 2830 0.034043829 49.25 3049 3233 3142 0.035219583 53.25 3302 3488 3396 0.034217043 56.5 3465 3650 3559 0.033140265 60 3608 3791 3703 0.046990028 63.75 3735 3920 3830 0.038541234 67.75 3842 4040 3944 0.048059605 71.5 3925 4145 4042 0.038890813 76 4029 4275 4162 0.055365993 79.75 4135 4394 4276 0.053339635 83.75 4272 4528 4411 0.050007455 87.75 4413 4659 4546 0.049421849 91.75 4553 4789 4680 0.05344381 95.75 4690 4924 4814 0.050598853 99.75 4836 5091 4950 0.050076147 103.75 4979 5245 5088 0.058028599 107.75 5123 5400 5229 0.070311183 111.75 5271 5549 5375 0.066114373 114.5 5377 5647 5478 0.070783015 117.75 5506 5754 5602 0.080061471 121.75 5668 5868 5758 0.094052712 125.7 5826 6005 5916 0.090162675 129.7 5994 6173 6082 0.061644433 133.7 6163 6354 6255 0.069162155 137.7 6347 6538 6439 0.095206181 141.7 6547 6734 6638 0.073843432 145.7 6757 6940 6847 0.063190265 149.95 6980 7165 7072 0.073648296 153.95 7179 7376 7278 0.07876049 157.7 7356 7569 7462 0.098586689 161.7 7529 7755 7640 0.085130697 165.2 7665 7890 7776 0.092485712 169.45 7804 8014 7907 0.100909705 173.7 7914 8113 8014 0.091793038 177.7 8007 8211 8106 0.100683542 181.45 8091 8310 8195 0.093569441 185.7 8202 8441 8312 0.059132478 189.7 8341 8585 8452 0.073455658 193.7 8524 8750 8627 0.077945459 197.7 8732 8932 8828 0.07996289 201.2 8919 9108 9016 0.046619058 203.7 9050 9242 9152 -0.00300615 205.7 9151 9354 9260 -0.00435987 207.2 9223 9441 9340 -0.00512195 208.2 9269 9499 9392 -0.00447333 209.2 9314 9556 9443 -0.00444567