{"NOAAStudyId":"13016","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-13016.xml","doi":null,"earliestYearBP":775,"earliestYearCE":1175,"entryId":"noaa-lake-13016","funding":[{"fundingAgency":"Project Millennium ","fundingGrant":"Contract 017008"},{"fundingAgency":"National Centre of Competence in Research (NCCR)","fundingGrant":"NF-200021-106005/1 \"ENLARGE\""}],"investigators":"Trachsel, M.; Grosjean, M.; Schnyder, D.; Kamenik, C.; Rein, B.","mostRecentYearBP":1,"mostRecentYearCE":1949,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13016","originalSource":null,"publication":[{"abstract":"High-resolution (annual to sub-decadal) quantitative reconstructions \r\nof climate variables are needed from a variety of paleoclimate archives \r\nacross the world to place current climate change in the context of \r\nlong-term natural climate variability.  Rapid, high-resolution, \r\nnon-destructive scanning techniques are required to produce such \r\nhigh-resolution records from lake sediments. In this study we explored \r\nthe potential of scanning reflectance spectroscopy (VIS-RS; 380-730 nm) \r\nto produce quantitative summer temperature reconstructions from \r\nminerogenic sediments of proglacial, annually laminated Lake Silvaplana, \r\nin the eastern Swiss Alps. The scanning resolution was 2 mm, \r\nwhich corresponded to sediment deposition over 1-2 years. We found \r\ncorrelations up to r = 0.84 (p<0.05) for the calibration period \r\n1864-1950, between six reflectance-dependent variables and summer \r\n(JJAS) temperature. These reflectance-dependent variables (e.g. slope \r\nof the reflectance 570/630 nm, indicative of illite, biotite \r\nand chlorite; minimum reflectance at 690 nm indicative of chlorite) \r\nindicate the mineralogical composition of the clastic sediments, \r\nwhich is, in turn, related to climate in the catchment of this \r\nparticular proglacial lake. We used multiple linear regression (MLR) \r\nto establish a calibration model that explains 84% of the variance \r\nof summer (JJAS) temperature during the calibration period 1864-1950. \r\nWe then applied the calibration model downcore to develop a \r\nquantitative summer temperature reconstruction extending back to \r\nAD 1177. This temperature reconstruction is in good agreement with \r\ntwo independent temperature reconstructions based on documentary data \r\nthat extend back to AD 1500 and tree ring data that extend back to \r\nAD 1177. This study confirms the great potential of in situ scanning \r\nreflectance spectroscopy as a novel non-destructive technique to \r\nrapidly acquire high-resolution quantitative paleoclimate information \r\nfrom minerogenic lake sediments. \r\n\r\n","author":null,"citation":"Trachsel, M., M. Grosjean, D. Schnyder, C. Kamenik, and B. Rein. 2010. \r\nScanning reflectance spectroscopy (380–730 nm): a novel method for \r\nquantitative high-resolution climate reconstructions from minerogenic \r\nlake sediments. \r\nJournal of Paleolimnology, December 2010, Vol. 44, Issue 4, pp 979-994. \r\nDOI: 10.1007/s10933-010-9468-7 ","edition":null,"identifier":{"id":"10.1007/s10933-010-9468-7","type":"doi","url":"http://dx.doi.org/10.1007/s10933-010-9468-7"},"issue":null,"journal":"Journal of Paleolimnology","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"Scanning reflectance spectroscopy (380–730 nm): a novel method for  quantitative high-resolution climate reconstructions from minerogenic  lake sediments","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Air Temperature Reconstruction"],"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":"22470","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>physical properties","earth science>paleoclimate>paleolimnology>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2010c.txt","linkText":"silvaplana2010c.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":"9-100 year band pass filtered; based on visible reflectance spectroscopy","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvDetail":"filtered","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"3-month period>Jun-Aug","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>surface temperature"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>reconstruction","earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/silvaplana2010c.xls","linkText":"silvaplana2010c.xls","urlDescription":"Data","variables":[]}],"dataTableName":"Trachsel2010c","dataTableNotes":null,"earliestYear":1175,"earliestYearBP":775,"earliestYearCE":1175,"mostRecentYear":1949,"mostRecentYearBP":1,"mostRecentYearCE":1949,"species":[],"timeUnit":"AD"}],"siteName":"Lake Silvaplana"}],"studyCode":null,"studyName":"Lake Silvaplana, Switzerland 775 Year Summer Temperature Reconstruction","studyNotes":"775 year summer (JJA) temperature reconstruction for the Swiss Alps \nbased on  visible reflectance spectroscopy from Lake Silvaplana, \nSwitzerland. \n\nLake Silvaplana, Switzerland: 46°27'N, 9°48'E, 1800m ","version":"1.0","xmlId":"11058"}