{"NOAAStudyId":"13017","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":"2012-06-13","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-13017.xml","doi":null,"earliestYearBP":369,"earliestYearCE":1581,"entryId":"noaa-lake-13017","funding":[{"fundingAgency":"Project Millennium ","fundingGrant":"Contract 017008"},{"fundingAgency":"National Centre of Competence in Research (NCCR)","fundingGrant":"NF-200021-106005/1 \"ENLARGE\""}],"investigators":"Trachsel, M.; Eggenberger, U.; Grosjean, M.; Blass, A.; Sturm, M.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13017","originalSource":null,"publication":[{"abstract":"We present quantitative autumn, summer and annual precipitation \r\nand summer temperature reconstructions from proglacial annually \r\nlaminated Lake Silvaplana, eastern Swiss Alps back to AD 1580. \r\nWe used X-ray diffraction peak intensity ratios of minerals \r\nin the sediment layers (quartz qz, plagioclase pl, amphibole am, \r\nmica mi) that are diagnostic for different source areas \r\nand hydrometeorological transport processes in the catchment. \r\nXRD data were calibrated with meteorological data (AD 1800/\r\n1864-1950) and revealed significant correlations: mi/pl with \r\nSON precipitation (r = 0.56, p < 0.05) and MJJAS precipitation \r\n(r = 0.66, p < 0.01); qz/mi with MJJAS temperature (r = -0.72, \r\np < 0.01) and qz/am with annual precipitation (r = -0.54, p < 0.05). \r\nGeological catchment settings and hydro-meteorological processes \r\nprovide deterministic explanations for the correlations. \r\nOur summer temperature reconstruction reproduces the typical \r\nfeatures of past climate variability known from independent \r\ndata sets. The precipitation reconstructions show a LIA \r\nclimate moister than today. Exceptionally wet periods in our \r\nreconstruction coincide with regional glacier advances. \r\n","author":null,"citation":"Trachsel, M., U. Eggenberger, M. Grosjean, A. Blass, and M. Sturm. 2008. \r\nMineralogy-based quantitative precipitation and temperature \r\nreconstructions from annually laminated lake sediments (Swiss Alps) \r\nsince AD 1580. \r\nGeophysical Research Letters, Vol. 35, L13707, doi:10.1029/2008GL034121 ","edition":null,"identifier":{"id":"10.1029/2008GL034121","type":"doi","url":"http://dx.doi.org/10.1029/2008GL034121"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Mineralogy-based quantitative precipitation and temperature  reconstructions from annually laminated lake sediments (Swiss Alps)  since AD 1580","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Little Ice Age (LIA)"],"site":[{"NOAASiteId":"19885","geo":{"geoType":"Feature","geometry":{"coordinates":["46.45","9.8"],"type":"POINT"},"properties":{"easternmostLongitude":"9.8","maxElevationMeters":"1800","minElevationMeters":"1800","northernmostLatitude":"46.45","southernmostLatitude":"46.45","westernmostLongitude":"9.8"}},"locationName":"Continent>Europe>Western Europe>Switzerland","mappable":"Y","paleoData":[{"NOAADataTableId":"22471","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>mineralogy"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2008b.txt","linkText":"silvaplana2008b.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"quartz/amphibole","cvDataType":"PALEOLIMNOLOGY","cvDetail":"normalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray diffraction","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"geological material>identified mineral>mineral index"},{"cvAdditionalInfo":"mica/plagioclase","cvDataType":"PALEOLIMNOLOGY","cvDetail":"normalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray diffraction","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"geological material>identified mineral>mineral index"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>mineralogy"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2008b.xls","linkText":"silvaplana2008b.xls","urlDescription":"Data","variables":[]}],"dataTableName":"Trachsel2008b","dataTableNotes":null,"earliestYear":1581,"earliestYearBP":369,"earliestYearCE":1581,"mostRecentYear":1950,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"AD"}],"siteName":"Lake Silvaplana"}],"studyCode":null,"studyName":"Lake Silvaplana, Switzerland 370 Year Minerals Data ","studyNotes":"X-ray diffraction peak intensity ratios of minerals in the sediment \nlayers (quartz qz, plagioclase pl, amphibole am, mica mi) of Lake \nSilvaplana, Switzerland. \n\nLake Silvaplana, Switzerland: 46°27'N, 9°48'E, 1800m ","version":"1.0","xmlId":"11059"}