noaa-lake-23090 Coldwater Lake, Northern Great Plains, North America Past Two Millennia Hydrologic Data Fritz, S.C.; Engstrom, D.R.; Grimm, E.C. Coldwater Lake, Northern Great Plains, North America Past Two Millennia Hydrologic Data 2017-11-15 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23090 Investigator S.C. Fritz Investigator D.R. Engstrom Investigator E.C. Grimm earth science paleoclimate climate reconstructions|paleolimnology age,null,null,year Common Era,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology age,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology salinity,diatom assemblage|lake water,null,practical salinity unit,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology depth,null,null,centimeter,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate reconstructions lake salinity geoscientificInformation 1989 cal yr BP -41 cal yr BP Complete 46.01 46.01 -99.08 -99.08 594 594 Continent North America United States Of America North Dakota Coldwater Lake>LATITUDE 46.01>LONGITUDE -99.08 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 Sherilyn C. Fritz, Emi Ito,Zicheng Yu,Kathleen R. Laird,Daniel R. Engstrom 2000 Quaternary Research 53 02 175-184 10.1006/qres.1999.2115

Reconstructions of lake-water salinity at decadal resolution for the last 2,000 years are compared among three lakes in North Dakota to infer regional patterns of drought. The intersite comparisons are used to distinguish local variation in climate or hydrology from regional patterns of change. At one lake, diatom-inferred salinity and lake-water Mg/Ca inferred from ostracode shell chemistry are coherent, both in terms of direction and magnitude of change, indicating that each is a robust technique for reconstructing lake-water chemistry. The data show that the last 2,000 years have been characterized by frequent shifts between high and low salinity, suggesting shifts between dry and moist periods. Long intervals of high salinity suggest periods of multiple decades when droughts were intense and frequent, thus indicating times when drought was more persistent than in the 20th century. Both the Medieval Period and Little Ice Age were hydrologically complex, and there is no clear evidence to suggest that either interval was coherent or unusual in effective moisture relative to long-term patterns. Differences among the three sites may be attributed to variation in local hydrology, and these differences emphasize the need for multiple sites in deriving regional climate interpretations from paleoecological data.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/Coldwater.Fritz.2000.txt NOAA Template File; Coldwater Lake, Lake Salinity Data (NOAA Template Format) GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/Coldwater.Fritz.2000.lpd Linked Paleo Data (LiPD) File Format; Coldwater Lake, Lake Salinity Data (LiPD Format) USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11