{"NOAAStudyId":"23077","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2017-11-15","dataPublisher":"NOAA","dataType":"LAKE LEVELS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake-level-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lakelevel-23077.xml","doi":null,"earliestYearBP":7900,"earliestYearCE":-5950,"entryId":"noaa-lakelevel-23077","funding":[],"investigators":"Shuman, B.N.; Henderson, A.K.; Colman, S.M.; Stone, J.R.; Fritz, S.C.; Stevens, L.R.; Power, M.J.; Whitlock, C.","mostRecentYearBP":50,"mostRecentYearCE":1900,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/23077","originalSource":null,"publication":[{"abstract":"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.","author":{"name":"Shuman, Bryan; Henderson, Anna K.; Colman, Steven M.; Stone, Jeffery R.; Fritz, Sherilyn C.; Stevens, Lora R.; Power, Mitchell J.; and Whitlock, Cathy"},"citation":"Shuman, Bryan; Henderson, Anna K.; Colman, Steven M.; Stone, Jeffery R.; Fritz, Sherilyn C.; Stevens, Lora R.; Power, Mitchell J.; and Whitlock, Cathy. 2009. Holocene lake-level trends in the Rocky Mountains, U.S.A. Quaternary Science Reviews, 28(19-20), 1861-1879. doi: 10.1016/j.quascirev.2009.03.003","edition":null,"identifier":{"id":"10.1016/j.quascirev.2009.03.003","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2009.03.003"},"issue":"19-20","journal":"Quaternary Science Reviews","pages":"1861-1879","pubRank":"1","pubYear":2009,"reportNumber":null,"title":"Holocene lake-level trends in the Rocky Mountains, U.S.A.","type":"publication","volume":"28"}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"57525","geo":{"geoType":"Feature","geometry":{"coordinates":["40.505","-106.607"],"type":"POINT"},"properties":{"easternmostLongitude":"-106.607","maxElevationMeters":"2708","minElevationMeters":"2708","northernmostLatitude":"40.505","southernmostLatitude":"40.505","westernmostLongitude":"-106.607"}},"locationName":"Continent>North America>United States Of America>Colorado","mappable":"Y","paleoData":[{"NOAADataTableId":"34334","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>lake levels"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/Hidden.Shuman.2009.lpd","linkText":"Hidden Lake, CO Lake Level Data","urlDescription":"Linked Paleo Data (LiPD) File Format","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range lower bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range upper bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>lake levels"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/Hidden.Shuman.2009.txt","linkText":"Hidden Lake, CO Lake Level Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range lower bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":"Elevation below modern; Multi-core sediment stratigraphy constrains lake elevation","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range upper bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"earth system variable>hydrographic variable>lake level"}]}],"dataTableName":"Hidden.Shuman.2009","dataTableNotes":null,"earliestYear":7900,"earliestYearBP":7900,"earliestYearCE":-5950,"mostRecentYear":50,"mostRecentYearBP":50,"mostRecentYearCE":1900,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Hidden Lake, Colorado"}],"studyCode":null,"studyName":"Hidden Lake, Colorado Lake Level Data over the last 8000 years","studyNotes":"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.","version":"1.0","xmlId":"21294"}