{"NOAAStudyId":"12259","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":"2011-11-16","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-12259.xml","doi":null,"earliestYearBP":420,"earliestYearCE":1530,"entryId":"noaa-lake-12259","funding":[{"fundingAgency":"Swiss National Science Foundation","fundingGrant":"NF-200020-121869"},{"fundingAgency":"Chilean Swiss Joint Research Programme","fundingGrant":"CJRP 1001"}],"investigators":"Elbert, J.; Grosjean, M.; von Gunten, L.; Urrutia, R.; Fischer, D.; Wartenburger, R.; Ariztegui, D.; Fujak, M.","mostRecentYearBP":-50,"mostRecentYearCE":2000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12259","originalSource":null,"publication":[{"abstract":"High-resolution climate reconstructions from a range of natural \r\narchives across the world are fundamental to place current climate \r\nchange into perspective. Paleoclimate records for the Southern \r\nHemisphere are scarce and only a few quantitative high-resolution \r\nreconstructions exist for the past millennium. We present a record \r\nof annually laminated sediments of Lago Plomo (46°59'S, 72°52'W, \r\n203 m a.s.l.) located east of the Northern Patagonian Ice Field \r\n(NPI). Radiometric dating (210Pb, 137Cs, 14C AMS) is consistent \r\nwith counts of millimetre-scale laminae, confirming the annual \r\nnature of the laminae couplets with a light summer and a dark \r\nwinter layer. The varves were analyzed for thickness, mass \r\naccumulation rate (MAR), scanning x-ray fluorescence (XRF) \r\nand scanning reflectance spectroscopy in the visible range \r\n(VIS-RS). MAR data were calibrated against austral winter (JJA) \r\nprecipitation data (CRU TS 3.0) for the period AD 1930–2002 \r\n(r = 0.67, p (aut) < 0.05). Using a linear inverse regression \r\nmodel we reconstructed winter precipitation for Lago Plomo \r\nback to AD 1530. The root mean squared error of prediction (RMSEP) \r\nis small (13.3 mm/month; 12% of the average precipitation) \r\ncompared with the pronounced decadal and multidecadal variability, \r\nsuggesting that most of the reconstructed variability is significant. \r\nWetter phases (reference AD 1930-2002) were observed around AD 1600, \r\nAD 1630-1690 and AD 1780-1850, and a prolonged drier period AD 1690-\r\n1780 with a multidecadal minimum centered on AD 1770. The spatial \r\ncorrelation for South America suggests that the JJA precipitation \r\nrecord from Lago Plomo is representative for large areas in the \r\nsouthwest between c. 41°S and 51°S. \r\n\r\n","author":null,"citation":"Elbert, J., M. Grosjean, L. von Gunten, R. Urrutia, D. Fischer, \rR. Wartenburger, D. Ariztegui, and M. Fujak. 2012.  \rQuantitative high-resolution winter (JJA) precipitation reconstruction \r\nfrom varved sediments of Lago Plomo 47°S, Patagonian Andes, AD 1530-2001. \r\nThe Holocene, 22(4), 465-474. doi:10.1177/0959683611425547\r\n","edition":null,"identifier":{"id":"10.1177/0959683611425547","type":"doi","url":"http://dx.doi.org/10.1177/0959683611425547"},"issue":null,"journal":"The Holocene","pages":null,"pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Quantitative high-resolution winter (JJA) precipitation reconstruction  from varved sediments of Lago Plomo 47°S, Patagonian Andes, AD 1530-2001","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Precipitation Reconstruction","PAGES LOTRED SA2k","PAGES 2k Network"],"site":[{"NOAASiteId":"52450","geo":{"geoType":"Feature","geometry":{"coordinates":["-46.9833","-72.8667"],"type":"POINT"},"properties":{"easternmostLongitude":"-72.8667","maxElevationMeters":"203","minElevationMeters":"203","northernmostLatitude":"-46.9833","southernmostLatitude":"-46.9833","westernmostLongitude":"-72.8667"}},"locationName":"Continent>South America>Chile","mappable":"Y","paleoData":[{"NOAADataTableId":"20604","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction","earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/chile/plomo2012.txt","linkText":"plomo2012.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"based on mass accumulation rate","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"millimeter per month","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation"},{"cvAdditionalInfo":"based on mass accumulation rate","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"97.5% confidence interval lower bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"millimeter per month","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation"},{"cvAdditionalInfo":"based on mass accumulation rate","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":null,"cvError":"97.5% confidence interval upper bound","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"millimeter per month","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>precipitation"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"milligram per square centimeter per year","cvWhat":"formation property>formation rate>accumulation rate"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>varve thickness"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction","earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/chile/plomo2012.xls","linkText":"plomo2012.xls","urlDescription":"Data","variables":[]}],"dataTableName":"Plomo2012","dataTableNotes":null,"earliestYear":1530,"earliestYearBP":420,"earliestYearCE":1530,"mostRecentYear":2000,"mostRecentYearBP":-50,"mostRecentYearCE":2000,"species":[],"timeUnit":"AD"}],"siteName":"Lago Plomo"}],"studyCode":null,"studyName":"Lago Plomo Varve 470 Year Winter Precipitation Reconstruction","studyNotes":"Austral Winter (JJA) precipitation reconstruction from \nvarved sediments collected in Lago Plomo, Patagonian Andes. \nMass accumulation rate (MAR) data correlate with austral \nwinter (JJA) precipitation data (CRU TS 3.0), and are used \nto develop the 470 year austral winter precipitation \nreconstruction.  For the reconstruction, the raw MAR data \nwas detrended with LOESS and a 5 year filter was applied. \n\nThe record indicates lower winter precipitation (with regard \nto the twentieth century) for the second half of the sixteenth \ncentury followed by two decades with higher precipitation \nAD 1590-1610. Precipitation falls below the twentieth-century \nmean AD 1610-1630 while the second half of the seventeenth \ncentury was very humid. The eighteenth century experiences \ngreater variability and generally very dry conditions.\nThe end of the eighteenth century is characterized by a sharp \nrise in precipitation above average AD 1780-1850, followed by \ndrying until the end of the nineteenth century. Decadal and \nmultidecadal variability is pronounced during the entire record.\n","version":"1.0","xmlId":"10321"}