# Nebraska Sand Hills Lake Level Data over the last 4000 years #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # 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/23075 # Online_Resource_Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/BeaverLake.Schmieder.2011.txt # Online_Resource_Description: This file. NOAA WDS Paleo formatted metadata and data for version 1.0.0 of this dataset. # # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/BeaverLake.Schmieder.2011.lpd # Online_Resource_Description: Linked Paleo Data (LiPD) formatted file containing the same metadata and data as this file, for version 1.0.0 of this dataset. # # Original_Source_URL: this study # Description/Documentation lines begin with # # Data lines have no # # # Archive: Lake Level # Parameter_Keywords: # Dataset_DOI: # #------------------ # Contribution_Date # Date: 2017-11-15 #------------------ # File_Last_Modified_Date # Modified_Date: 2017-11-15 #------------------ # Title # Study_Name: Nebraska Sand Hills Lake Level Data over the last 4000 years #------------------ # Investigators # Investigators: Schmieder, J.; Fritz, S.C.; Swinehart, J.B.; Shinneman, A.L.C.; Wolfe, A.P.; Miller, G.; Daniels, N.; Jacobs, K.C.; Grimm, E.C. #------------------ # Description_Notes_and_Keywords # Description: #------------------ # Publication # Authors: Schmieder, J.; Fritz, S.C.; Swinehart, J.B.; Shinneman, A.L.C.; Wolfe, A.P.; Miller, G.; Daniels, N.; Jacobs, K.C.; Grimm, E.C. # Published_Date_or_Year: 2011 # Published_Title: A regional-scale climate reconstruction of the last 4000 years from lakes in the Nebraska Sand Hills, USA # Journal_Name: Quaternary Science Reviews # Volume: 30 # Edition: # Issue: 13-14 # Pages: 1797-1812 # Report: # DOI: 10.1016/j.quascirev.2011.04.011 # Online_Resource: # Full_Citation: # Abstract: High-resolution paleohydrological reconstructions were carried out in five shallow lakes in the Nebraska Sand Hills across an east–west transect in order to 1) determine whether long-term droughts of the past 4000 years were spatially and temporally coherent across the region, 2) distinguish local variation in climate or hydrology from regional patterns of change, and 3) compare the paleolimnological results with the existing dune-inferred drought records. Diatom- inferred lake-level was reconstructed for all sites and compared with other regional records. Alterations between high and low lake-levels were frequent during the past 4000 years, which suggests that shifts between dry and wet periods were prevalent across the Sand Hills. Extended multi-decadal to centennial-scale droughts were more common prior to 2000 years BP, while the last two millennia were hydrologically more variable and climate conditions alternated on shorter timescales. Despite some discrepancies among the five records, the paleohydrological reconstructions refine the Holocene drought history of the Nebraska Sand Hills, particularly between ~2200 and 4000 cal a BP. Many of the observed drought events are contemporaneous with severe droughts documented at sites in the northern Great Plains and Rocky Mountains, lending support for the severity and regional significance of these events in western North America. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Beaver Lake # Location: Nebraska # Country: # Northernmost_Latitude: 42.46 # Southernmost_Latitude: 42.46 # Easternmost_Longitude: -100.67 # Westernmost_Longitude: -100.67 # Elevation: 905 #------------------ # Data_Collection # Collection_Name: BeaverLake.Schmieder.2011 # Earliest_Year: 6449.643 # Most_Recent_Year: 0.0 # Time_Unit: BP # Core_Length: # Notes: #------------------ # Species # Species_Name: # Species_Code: # Common_Name: #------------------ # Chronology_Section # Chronology: # LabNo Top Bottom depth Age error CalAgeLower CalAge CalAgeUpper MaterialDated # nan nan nan 346.0 -45.0 0.0 -45.0 -45.0 -45.0 Top of core # nan nan nan 385.0 70.0 10.0 60.0 70.0 80.0 Salsolarise # CAMS-118863 399.0 403.0 401.0 1055.0 35.0 923.0 964.0 1055.0 charcoal # CAMS-118864 439.0 440.0 439.5 1310.0 35.0 1178.0 1248.0 1294.0 charcoal # CAMS-42475 484.0 486.0 485.0 1740.0 50.0 1538.0 1652.0 1811.0 2 Schoenoplectusseeds charcoal # CAMS-118865 519.0 520.0 519.5 3125.0 35.0 3260.0 3355.0 3442.0 Schoenoplectusseed charcoal # CAMS-42476 552.0 554.0 553.0 3440.0 50.0 3578.0 3704.0 3835.0 ~20 Sagittariaseeds # CAMS-118866 599.0 600.0 599.5 3960.0 35.0 4294.0 4430.0 4521.0 SchoenoplectusseedChenopodiumseeds charcoal # CAMS-42477 650.0 652.0 651.0 4480.0 50.0 4894.0 5145.0 5308.0 5 Schoenoplectusseeds 3Chenopodiumseeds # CAMS-42478 650.0 652.0 651.0 4550.0 50.0 5041.0 5174.0 5444.0 charcoal # CAMS-42477/42478 Pooled Mean 650.0 652.0 651.0 nan nan 5041.0 5161.0 5301.0 pooled mean from Bcal # CAMS-25282 979.0 979.0 979.0 10980.0 60.0 12846.0 12917.0 13047.0 cf. Schoenoplectusrhizome # #------------------ # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components ( 10 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data, additional_information) # ## year age, ,,year CE, , , ,,N, ## DI_lake_depth lake level,,,m, , lake level;climate reconstruction, ,,N, diatom-inferred lake level ## age age, ,,calendar years before present, ,, ,,N, ## depth depth, ,,cm, , , ,,N, ## lake_Z_score lake level,,,standard deviation unit, , lake level; climate reconstruction, ,,N,Z-score; diatom-inferred lake level # #------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header) # Missing_Values: nan # year DI_lake_depth age depth lake_Z_score 1950.0 2.28 0.0 346.0 -0.01 1946.41 2.33 3.59 348.0 0.04 1942.821 2.32 7.179 350.0 0.03 1939.231 2.26 10.769 352.0 -0.03 1935.641 2.05 14.359 354.0 -0.24 1932.051 2.07 17.949 356.0 -0.22 1928.462 2.14 21.538 358.0 -0.15 1924.872 2.12 25.128 360.0 -0.17 1921.282 1.96 28.718 362.0 -0.33 1917.692 2.07 32.308 364.0 -0.22 1914.103 2.05 35.897 366.0 -0.24 1910.513 2.07 39.487 368.0 -0.22 1906.923 1.71 43.077 370.0 -0.58 1903.333 1.74 46.667 372.0 -0.55 1899.744 1.72 50.256 374.0 -0.57 1896.154 1.73 53.846 376.0 -0.56 1892.564 1.85 57.436 378.0 -0.44 1888.974 1.77 61.026 380.0 -0.52 1885.385 1.88 64.615 382.0 -0.41 1881.795 1.96 68.205 384.0 -0.33 1824.125 2.13 125.875 386.0 -0.16 1712.375 2.05 237.625 388.0 -0.24 1600.625 1.78 349.375 390.0 -0.51 1488.875 1.87 461.125 392.0 -0.42 1377.125 1.76 572.875 394.0 -0.53 1265.375 1.67 684.625 396.0 -0.62 1153.625 1.8 796.375 398.0 -0.49 1041.875 1.95 908.125 400.0 -0.34 978.718 1.94 971.282 402.0 -0.35 964.154 1.89 985.846 404.0 -0.4 949.59 2.01 1000.41 406.0 -0.28 935.026 1.98 1014.974 408.0 -0.31 920.462 2.23 1029.538 410.0 -0.06 905.897 2.07 1044.103 412.0 -0.22 891.333 2.02 1058.667 414.0 -0.27 876.769 2.36 1073.231 416.0 0.07 862.205 2.22 1087.795 418.0 -0.07 847.641 2.08 1102.359 420.0 -0.21 833.077 2.23 1116.923 422.0 -0.06 818.513 2.22 1131.487 424.0 -0.07 803.949 2.22 1146.051 426.0 -0.07 789.385 2.24 1160.615 428.0 -0.05 774.821 2.3 1175.179 430.0 0.01 760.256 2.23 1189.744 432.0 -0.06 745.692 2.57 1204.308 434.0 0.28 731.128 2.34 1218.872 436.0 0.05 716.564 2.39 1233.436 438.0 0.1 702.0 2.45 1248.0 440.0 0.16 684.044 2.64 1265.956 442.0 0.35 666.088 2.46 1283.912 444.0 0.17 648.132 2.37 1301.868 446.0 0.08 630.176 2.61 1319.824 448.0 0.32 612.22 2.4 1337.78 450.0 0.11 594.264 2.31 1355.736 452.0 0.02 576.308 3.05 1373.692 454.0 0.76 558.352 3.01 1391.648 456.0 0.72 540.396 2.71 1409.604 458.0 0.42 522.44 2.56 1427.56 460.0 0.27 504.484 2.39 1445.516 462.0 0.1 486.528 2.67 1463.472 464.0 0.38 468.572 2.5 1481.428 466.0 0.21 450.616 2.46 1499.384 468.0 0.17 432.66 2.43 1517.34 470.0 0.14 414.704 2.15 1535.296 472.0 -0.14 396.748 2.13 1553.252 474.0 -0.16 378.792 2.13 1571.208 476.0 -0.16 360.836 2.38 1589.164 478.0 0.09 342.88 2.43 1607.12 480.0 0.14 324.924 2.32 1625.076 482.0 0.03 306.968 2.61 1643.032 484.0 0.32 249.486 2.94 1700.514 486.0 0.65 152.457 3.35 1797.543 488.0 1.06 55.429 3.45 1894.571 490.0 1.16 -41.6 3.32 1991.6 492.0 1.03 -138.629 3.41 2088.629 494.0 1.12 -235.657 2.89 2185.657 496.0 0.6 -332.686 3.07 2282.686 498.0 0.78 -429.714 3.15 2379.714 500.0 0.86 -526.743 2.85 2476.743 502.0 0.56 -623.771 3.16 2573.771 504.0 0.87 -720.8 3.46 2670.8 506.0 1.17 -817.828 3.71 2767.828 508.0 1.42 -914.857 3.37 2864.857 510.0 1.08 -1011.886 3.43 2961.886 512.0 1.14 -1108.914 2.94 3058.914 514.0 0.65 -1205.943 2.78 3155.943 516.0 0.49 -1302.971 2.95 3252.971 518.0 0.66 -1405.0 3.35 3355.0 520.0 1.06 -1426.152 3.11 3376.152 522.0 0.82 -1447.303 3.26 3397.303 524.0 0.97 -1468.455 3.32 3418.455 526.0 1.03 -1489.606 3.34 3439.606 528.0 1.05 -1510.758 3.31 3460.758 530.0 1.02 -1531.909 3.34 3481.909 532.0 1.05 -1553.061 3.07 3503.061 534.0 0.78 -1574.212 3.45 3524.212 536.0 1.16 -1595.364 3.42 3545.364 538.0 1.13 -1616.515 3.13 3566.515 540.0 0.84 -1637.667 2.98 3587.667 542.0 0.69 -1658.818 2.73 3608.818 544.0 0.44 -1679.97 3.1 3629.97 546.0 0.81 -1701.121 3.28 3651.121 548.0 0.99 -1722.273 3.56 3672.273 550.0 1.27 -1743.424 3.5 3693.424 552.0 1.21 -1769.447 3.52 3719.447 554.0 1.23 -1800.34 3.34 3750.34 556.0 1.05 -1831.234 3.32 3781.234 558.0 1.03 -1862.128 2.24 3812.128 560.0 -0.05 -1893.021 1.73 3843.021 562.0 -0.56 -1923.915 1.7 3873.915 564.0 -0.59 -1954.808 1.55 3904.808 566.0 -0.74 -1985.702 1.53 3935.702 568.0 -0.76 -2016.596 1.67 3966.596 570.0 -0.62 -2047.489 1.91 3997.489 572.0 -0.38 -2078.383 2.19 4028.383 574.0 -0.1 -2109.276 1.75 4059.276 576.0 -0.54 -2140.17 1.76 4090.17 578.0 -0.53 -2171.064 1.85 4121.064 580.0 -0.44 -2201.957 1.61 4151.957 582.0 -0.68 -2232.851 1.63 4182.851 584.0 -0.66 -2263.744 1.54 4213.744 586.0 -0.75 -2294.638 1.44 4244.638 588.0 -0.85 -2325.532 1.25 4275.532 590.0 -1.04 -2356.425 1.36 4306.425 592.0 -0.93 -2387.319 1.4 4337.319 594.0 -0.89 -2418.212 1.6 4368.212 596.0 -0.69 -2449.106 1.56 4399.106 598.0 -0.73 -2480.0 1.82 4430.0 600.0 -0.47 -2508.667 1.71 4458.667 602.0 -0.58 -2537.333 1.98 4487.333 604.0 -0.31 -2566.0 1.95 4516.0 606.0 -0.34 -2594.666 2.02 4544.666 608.0 -0.27 -2623.333 1.64 4573.333 610.0 -0.65 -2652.0 1.69 4602.0 612.0 -0.6 -2680.666 1.59 4630.666 614.0 -0.7 -2709.333 2.73 4659.333 616.0 0.44 -2737.999 2.61 4687.999 618.0 0.32 -2795.333 1.93 4745.333 622.0 -0.36 -2823.999 1.45 4773.999 624.0 -0.84 -2852.666 1.52 4802.666 626.0 -0.77 -2881.332 1.59 4831.332 628.0 -0.7 -2909.999 1.66 4859.999 630.0 -0.63 -2938.666 1.46 4888.666 632.0 -0.83 -2967.332 1.54 4917.332 634.0 -0.75 -2995.999 1.52 4945.999 636.0 -0.77 -3024.665 1.55 4974.665 638.0 -0.74 -3053.332 1.88 5003.332 640.0 -0.41 -3081.999 1.53 5031.999 642.0 -0.76 -3110.665 1.62 5060.665 644.0 -0.67 -3139.332 1.44 5089.332 646.0 -0.85 -3167.998 1.36 5117.998 648.0 -0.93 -3196.665 1.43 5146.665 650.0 -0.86 -3234.43 1.59 5184.43 652.0 -0.7 -3281.29 1.6 5231.29 654.0 -0.69 -3328.149 1.43 5278.149 656.0 -0.86 -3375.009 2.56 5325.009 658.0 0.27 -3421.869 3.22 5371.869 660.0 0.93 -3468.729 3.18 5418.729 662.0 0.89 -3515.588 3.47 5465.588 664.0 1.18 -3562.448 3.7 5512.448 666.0 1.41 -3609.308 3.51 5559.308 668.0 1.22 -3656.168 2.78 5606.168 670.0 0.49 -3703.027 2.96 5653.027 672.0 0.67 -3749.887 3.42 5699.887 674.0 1.13 -3796.747 2.85 5746.747 676.0 0.56 -3843.606 2.13 5793.606 678.0 -0.16 -3890.466 2.0 5840.466 680.0 -0.29 -3937.326 1.74 5887.326 682.0 -0.55 -3984.186 1.63 5934.186 684.0 -0.66 -4031.045 1.68 5981.045 686.0 -0.61 -4077.905 1.15 6027.905 688.0 -1.14 -4124.765 1.05 6074.765 690.0 -1.24 -4171.625 1.06 6121.625 692.0 -1.23 -4218.484 1.2 6168.484 694.0 -1.09 -4265.344 1.21 6215.344 696.0 -1.08 -4312.204 nan 6262.204 698.0 nan -4359.064 nan 6309.064 700.0 nan -4405.923 1.5 6355.923 702.0 -0.79 -4452.783 nan 6402.783 704.0 nan -4499.643 1.87 6449.643 706.0 -0.42