Nebraska Sand Hills Lake Level Data over the last 6000 years Schmieder, J.; Fritz, S.C.; Swinehart, J.B.; Shinneman, A.L.C.; Wolfe, A.P.; Miller, G.H.; Daniels, N.; Jacobs, K.C.; Grimm, E.C. Schmieder, J. Fritz, S.C. Swinehart, J.B. Shinneman, A.L.C. Wolfe, A.P. Miller, G.H. Daniels, N. Jacobs, K.C. Grimm, E.C. Other Hydroclimate Reconstruction earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (age,null,null,calendar year before present,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (depth,null,null,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,diatom assemblage,null,standard deviation unit,null,climate reconstructions|lake levels|paleolimnology,null,null,N,Z-score; diatom-inferred lake level) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,diatom assemblage,null,meter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,diatom-inferred lake level) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,diatom assemblage,null,meter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (lake level,diatom assemblage,null,standard deviation unit,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/climate reconstructions|lake levels|paleolimnology (age,null,null,year Common Era,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null) earth science/paleoclimate/lake levels (Round Lake, Nebraska>LATITUDE 42.43>LONGITUDE -101.559444) (Beaver Lake, Nebraska>LATITUDE 42.46>LONGITUDE -100.67) (Swan Lake, Nebraska>LATITUDE 42.165278>LONGITUDE -99.035) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Schmieder, J. Investigator : Fritz, S.C. Investigator : Swinehart, J.B. Investigator : Shinneman, A.L.C. Investigator : Wolfe, A.P. Investigator : Miller, G.H. Investigator : Daniels, N. Investigator : Jacobs, K.C. Investigator : Grimm, E.C. 2017-11-15 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/23075 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/RoundLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/BeaverLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/SwanLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/RoundLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/BeaverLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/SwanLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/RoundLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/BeaverLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/SwanLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/RoundLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/BeaverLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/SwanLake.Schmieder.2011.txt English https://www.ncdc.noaa.gov/paleo/study/23075 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/RoundLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/BeaverLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/SwanLake.Schmieder.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/RoundLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/BeaverLake.Schmieder.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/SwanLake.Schmieder.2011.txt Schmieder, J.; Fritz, S.C.; Swinehart, J.B.; Shinneman, A.L.C.; Wolfe, A.P.; Miller, G.; Daniels, N.; Jacobs, K.C.; and Grimm, E.C.2011A regional-scale climate reconstruction of the last 4000 years from lakes in the Nebraska Sand Hills, USAQuaternary Science Reviews3013-141797-181210.1016/j.quascirev.2011.04.011 START YEAR: 6449 cal yr BP * END YEAR: 0 cal yr BP -101.559444 42.165278 -99.035 42.46