noaa-lakelevel-23077 Hidden Lake, Colorado Lake Level Data over the last 8000 years Shuman, B.N.; Henderson, A.K.; Colman, S.M.; Stone, J.R.; Fritz, S.C.; Stevens, L.R.; Power, M.J.; Whitlock, C. Hidden Lake, Colorado Lake Level Data over the last 8000 years 2017-11-15 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23077 Investigator B.N. Shuman Investigator A.K. Henderson Investigator S.M. Colman Investigator J.R. Stone Investigator S.C. Fritz Investigator L.R. Stevens Investigator M.J. Power Investigator C. Whitlock 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 lake level,null,range upper bound,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,null,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,range lower bound,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,range upper bound,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,range lower bound,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,null,centimeter,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 7900 cal yr BP 50 cal yr BP Complete 40.505 40.505 -106.607 -106.607 2708 2708 Continent North America United States Of America Colorado Hidden Lake, Colorado>LATITUDE 40.505>LONGITUDE -106.607 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 Shuman, Bryan; Henderson, Anna K.; Colman, Steven M.; Stone, Jeffery R.; Fritz, Sherilyn C.; Stevens, Lora R.; Power, Mitchell J.; and Whitlock, Cathy 2009 Quaternary Science Reviews 28 19-20 1861-1879 10.1016/j.quascirev.2009.03.003

The availability of water shapes life in the western United States, and much of the water in the region originates in the Rocky Mountains. Few studies, however, have explicitly examined the history of water levels in the Rocky Mountains during the Holocene. Here, we examine the past levels of three lakes near the Continental Divide in Montana and Colorado to reconstruct Holocene moisture trends. Using transects of sediment cores and sub-surface geophysical profiles from each lake, we find that mid-Holocene shorelines in the small lakes (4-110 ha) were as much as ˜10 m below the modern lake surfaces. Our results are consistent with existing evidence from other lakes and show that a wide range of settings in the region were much drier than today before 3000-2000 years ago. We also discuss evidence for millennial-scale moisture variation, including an abruptly-initiated and -terminated wet period in Colorado from 4400 to 3700 cal yr BP, and find only limited evidence for low-lake stands during the past millennium. The extent of low-water levels during the mid-Holocene, which were most severe and widespread ca 7000-4500 cal yr BP, is consistent with the extent of insolation-induced aridity in previously published regional climate model simulations. Like the simulations, the lake data provide no evidence for enhanced zonal flow during the mid-Holocene, which has been invoked to explain enhanced mid-continent aridity at the time. The data, including widespread evidence for large changes on orbital time scales and for more limited changes during the last millennium, confirm the ability of large boundary-condition changes to push western water supplies beyond the range of recent natural variability. STUDY NOTES: Lake level units are in "cm below modern level", so positive values indicate a drop in lake level. Contributed as part of the PAGES2k North American Hydroclimate synthesis project.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/Hidden.Shuman.2009.txt NOAA Template File; Hidden Lake, CO Lake Level Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/Hidden.Shuman.2009.lpd Linked Paleo Data (LiPD) File Format; Hidden Lake, CO Lake Level Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11