A regional-scale climate reconstruction of the last 4000 years from lakes in the Nebraska Sand Hills, USA

noaa-lakelevel-23075 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. Nebraska Sand Hills Lake Level Data over the last 6000 years 2017-11-15 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23075 Investigator J. Schmieder Investigator S.C. Fritz Investigator J.B. Swinehart Investigator A.L.C. Shinneman Investigator A.P. Wolfe Investigator G.H. Miller Investigator N. Daniels Investigator K.C. Jacobs Investigator E.C. Grimm 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 geoscientificInformation Other Hydroclimate Reconstruction 6449 cal yr BP 0 cal yr BP Complete 42.165278 42.46 -101.559444 -99.035 702 1064 Continent North America United States Of America Nebraska Round Lake, Nebraska>LATITUDE 42.43>LONGITUDE -101.559444 Continent North America United States Of America Nebraska Beaver Lake, Nebraska>LATITUDE 42.46>LONGITUDE -100.67 Continent North America United States Of America Nebraska Swan Lake, Nebraska>LATITUDE 42.165278>LONGITUDE -99.035 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII 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. 2011 A regional-scale climate reconstruction of the last 4000 years from lakes in the Nebraska Sand Hills, USA Quaternary Science Reviews 30 13-14 1797-1812 10.1016/j.quascirev.2011.04.011

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.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/RoundLake.Schmieder.2011.lpd Linked Paleo Data (LiPD) File Format; Round Lake, NE Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/BeaverLake.Schmieder.2011.lpd Linked Paleo Data (LiPD) File Format; Beaver Lake, NE Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/SwanLake.Schmieder.2011.lpd Linked Paleo Data (LiPD) File Format; Swan Lake, NE Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/RoundLake.Schmieder.2011.txt NOAA Template File; Round Lake, NE Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/BeaverLake.Schmieder.2011.txt NOAA Template File; Beaver Lake, NE Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/SwanLake.Schmieder.2011.txt NOAA Template File; Swan Lake, NE Lake Level Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11