{"NOAAStudyId":"16094","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":"2014-01-24","dataPublisher":"NOAA","dataType":"PALEOLIMNOLOGY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-16094.xml","doi":null,"earliestYearBP":16787,"earliestYearCE":-14837,"entryId":"noaa-lake-16094","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"EAR-0602380, EAR-0602408"}],"investigators":"Newby, P.E.; Shuman, B.N.; Donnelly, J.P.; MacDonald, D.","mostRecentYearBP":2,"mostRecentYearCE":1948,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/16094","originalSource":null,"publication":[{"abstract":"Long-term sediment and ground-penetrating radar data from Davis Pond, a small lake near the Hudson River valley, reveal past droughts in a historically humid region that presently supplies water to millions of people in and around New York City. A minimum of eleven sandy paleoshoreline deposits in the lake date from 13.4 to 0.6 cal ka BP. The deposits span 1500 to 200 yr between bracketing radiocarbon ages, and intrude into lacustrine silts up to 9.0 m below the modern lake surface in a transect of six sediment cores. Three low stands, ca. 13.4-10.9, 9.2 and 8.2 cal ka BP indicate low regional moisture balance when low temperatures affected the North Atlantic region. Consistent with insolation trends, water levels rose from ca. 8.0 cal ka BP to present, but five low stands interrupted the rise and are likely associated with ocean-atmosphere interactions. Similar to evidence from other studies, the data from Davis Pond indicate repeated multi-century periods of prolonged or frequent droughts super-imposed on long-term regional trends toward high water levels. The patterns indicate that water supplies in this heavily populated region have continuously varied at multiple time scales and confirm that humid regions such as the northeastern United States are more prone to severe drought than historically expected.","author":{"name":"Paige E. Newby, Bryan N. Shuman, Jeffrey P. Donnelly, Dana MacDonald"},"citation":"Paige E. Newby, Bryan N. Shuman, Jeffrey P. Donnelly, Dana MacDonald. 2011. Repeated century-scale droughts over the past 13,000 yr near the Hudson River watershed, USA. Quaternary Research, 75(3), 523-530. doi: 10.1016/j.yqres.2011.01.006","edition":null,"identifier":{"id":"10.1016/j.yqres.2011.01.006","type":"doi","url":"http://dx.doi.org/10.1016/j.yqres.2011.01.006"},"issue":"3","journal":"Quaternary Research","pages":"523-530","pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Repeated century-scale droughts over the past 13,000 yr near the Hudson River watershed, USA","type":"publication","volume":"75"},{"abstract":null,"author":{"name":"Paul Pribyl and Bryan N. Shuman"},"citation":"Paul Pribyl and Bryan N. Shuman. 2014. A Computational Approach to Quaternary Lake-Level Reconstruction Applied in the Central Rocky Mountains, Wyoming, USA. Quaternary Research. . ","edition":null,"identifier":null,"issue":null,"journal":"Quaternary Research","pages":null,"pubRank":"2","pubYear":2014,"reportNumber":null,"title":"A Computational Approach to Quaternary Lake-Level Reconstruction Applied in the Central Rocky Mountains, Wyoming, USA","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["hydrology","Other Hydroclimate Reconstruction"],"site":[{"NOAASiteId":"55811","geo":{"geoType":"Feature","geometry":{"coordinates":["42.1355","-73.4077"],"type":"POINT"},"properties":{"easternmostLongitude":"-73.4077","maxElevationMeters":"213","minElevationMeters":"213","northernmostLatitude":"42.1355","southernmostLatitude":"42.1355","westernmostLongitude":"-73.4077"}},"locationName":"Continent>North America>United States Of America>Massachusetts","mappable":"Y","paleoData":[{"NOAADataTableId":"26060","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/davis2011loi.txt","linkText":"Loss-On-Ignition Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"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":"550 degrees C","cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"loss on ignition","cvSeasonality":null,"cvShortName":null,"cvUnit":"weight percent","cvWhat":"biological material>bulk biological material>organic matter"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_cores.csv","linkText":"Loss-on-Ignition Data","urlDescription":"Original CSV Data File","variables":[]}],"dataTableName":"DavisPond2011LOI","dataTableNotes":null,"earliestYear":16787,"earliestYearBP":16787,"earliestYearCE":-14837,"mostRecentYear":2,"mostRecentYearBP":2,"mostRecentYearCE":1948,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"26061","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/davis2011ll.txt","linkText":"Lake Level Reconstruction","urlDescription":"Data 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":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"relative to present","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":"relative to present","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range upper bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"earth system variable>hydrographic variable>lake level"},{"cvAdditionalInfo":"relative to present","cvDataType":"CLIMATE RECONSTRUCTIONS|LAKE LEVELS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"range lower bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"earth system variable>hydrographic variable>lake level"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/FaciesThresholds_Davis.csv","linkText":"Facies Thresholds","urlDescription":"Original CSV Data File","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_Iterations_012414.csv","linkText":"Individual ensemble members","urlDescription":"Original CSV Data File","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_LLrecon_012414.csv","linkText":"Lake Level Reconstruction","urlDescription":"Original CSV Data File","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_R_Script_LLRecon_012414.txt","linkText":"Code for Lake Level Reconstruction","urlDescription":"R Script File","variables":[]}],"dataTableName":"DavisPond2011LL","dataTableNotes":null,"earliestYear":11900,"earliestYearBP":11900,"earliestYearCE":-9950,"mostRecentYear":50,"mostRecentYearBP":50,"mostRecentYearCE":1900,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"26062","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/davis2011p-e.txt","linkText":"Precipitation minus Evaporation Reconstruction","urlDescription":"Data File","variables":[{"cvAdditionalInfo":"75th percentile; based on sediment loss on ignition","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"percentile","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation minus evaporation"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|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":"based on sediment loss on ignition","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation minus evaporation"},{"cvAdditionalInfo":"25th percentile; based on sediment loss on ignition","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"percentile","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation minus evaporation"},{"cvAdditionalInfo":"based on sediment loss on ignition","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"one standard deviation lower bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation minus evaporation"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_PErecon_012414.csv","linkText":"Precipitation minus Evaporation Reconstruction","urlDescription":"Original CSV Data File","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/Davis_R_Script_MoistureBalance_011414.txt","linkText":"Code for P-E Reconstruction","urlDescription":"R Script File","variables":[]}],"dataTableName":"DavisPond2011P-E","dataTableNotes":null,"earliestYear":11900,"earliestYearBP":11900,"earliestYearCE":-9950,"mostRecentYear":50,"mostRecentYearBP":50,"mostRecentYearCE":1900,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Davis Pond"}],"studyCode":null,"studyName":"Davis Pond, Massachusetts 16KYr LOI Data and Moisture Balance Reconstructions","studyNotes":"Sediment loss-on-ignition (LOI) values and moisture balance (lake-level and Precipitation minus Evaporation) reconstructions for Davis Pond, Massachusetts. \nAlso included are facies thresholds for differentiating littoral and sub-littoral lake sediment facies \nbased on the raw core data, for use in the iterative lake-level reconstruction process. The reconstruction \nprocess iteratively applies each set of thresholds in R to produce an ensemble of reconstructions. The code for \ngenerating the lake-level reconstruction according to the process described in Pribyl and Shuman (2014) is provided.\nAlso included are the ensemble mean lake-level reconstruction and its uncertainty per 50-yr interval for the length \nof the record, and the individual ensemble members for each time step (but without the ages for the steps).\n R script MoistureBalance is the code for the simple moisture-budget calculation based on the lake-level reconstruction. \n Again this follows Pribyl and Shuman (2014).  PErecon contains the median P-E reconstruction as an anomaly from modern \nfor each 50-yr interval, as well as the 1-sigma and 25% and 75% quantiles of the reconstruction uncertainty.\nData and R code are included in original contributor files: Davis_cores.csv, Davis_Iterations_012414.csv, \nDavis_LLrecon_012414.csv, Davis_PErecon_012414.csv, Davis_R_Script_LLRecon_012414.txt, \nDavis_R_Script_MoistureBalance_011414.txt, and FaciesThresholds_Davis.csv, plus WDC Paleo formatted text files davis2013loi.txt,\ndavis2013ll.txt, and davis2013p-e.txt.","version":"1.0","xmlId":"13857"}