{"xmlId":"72529","NOAAStudyId":"30828","studyName":"Potrok Aike Surface Air Temperature Reconstructions during the Past 15,500 Years","doi":"https://doi.org/10.25921/t7a6-yr42","uuid":"90c0be84-864e-4deb-aee7-6b6608f19a28","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"CLIMATE RECONSTRUCTIONS","investigators":"Massaferro, J.; Larocque-Tobler, I.","investigatorDetails":[{"firstName":"Julieta","lastName":"Massaferro","initials":"J.","orcId":null},{"firstName":"Isabelle","lastName":"Larocque-Tobler","initials":"I.","orcId":null}],"version":"1.0","funding":[],"studyNotes":"This dataset was contributed as part of the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data were contributed to the project from the original data generators, who are listed in the Investigator field of this template file. Additional notes regarding the use of these data in the Temperature-12k project can be found in the LiPD file listed as an Online_Resource of this template file.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/30828","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-30828.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-recon-30828.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/climate-reconstruction","studyCode":null,"scienceKeywords":["Air Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2020-04-15","entryId":"noaa-recon-30828","earliestYearBP":15316,"mostRecentYearBP":73,"earliestYearCE":-13366,"mostRecentYearCE":1877,"publication":[{"author":{"name":"Kaufman, D., McKay, N., Routson, C., et al."},"pubYear":2020,"title":"A global database of Holocene paleotemperature records","journal":"Scientific Data","volume":"7","edition":null,"issue":null,"pages":null,"reportNumber":"115","citation":"Kaufman, D., McKay, N., Routson, C., et al. 2020. A global database of Holocene paleotemperature records. Scientific Data, 7, 115. doi: 10.1038/s41597-020-0445-3","type":"publication","identifier":{"type":"doi","id":"10.1038/s41597-020-0445-3","url":"http://dx.doi.org/10.1038/s41597-020-0445-3"},"abstract":null,"pubRank":"2"},{"author":{"name":"Massaferro, Julieta; Larocque-Tobler, Isabelle"},"pubYear":2013,"title":"Using a newly developed chironomid transfer function for reconstructing mean annual air temperature at Lake Potrok Aike, Patagonia, Argentina","journal":"Ecological Indicators","volume":"24","edition":null,"issue":null,"pages":"201-210","reportNumber":null,"citation":"Massaferro, Julieta; Larocque-Tobler, Isabelle. 2013. Using a newly developed chironomid transfer function for reconstructing mean annual air temperature at Lake Potrok Aike, Patagonia, Argentina. Ecological Indicators, 24, 201-210. doi: 10.1016/j.ecolind.2012.06.017","type":"publication","identifier":{"type":"doi","id":"10.1016/j.ecolind.2012.06.017","url":"http://dx.doi.org/10.1016/j.ecolind.2012.06.017"},"abstract":"In the Southern Hemisphere, the lack of quantitative temperature records hampers the understanding of climate change since the Last Glaciation and refrains the comparison with the Northern Hemisphere records. To provide quantitative data, a 63-lake chironomid transfer functions was developed in Patagonia. Mean annual air temperature (MAT) was one of the most important factors explaining the distribution of chironomids while precipitation did not have any significant relationship with chironomid assemblages. The MAT model had a r2 of 0.64, a RMSE of 0.83 and a maximum bias of 1.81 °C, comparable to other transfer functions of this size. This model was applied to the Lake Potrok Aike (PTA) chironomid records which consisted of only four taxa (Phaenopsectra, Cricotopus, Smittia and Polypedilum). The chironomid-inferred air temperatures were colder-than-the-average (10.8 °C) during the Lateglacial with the coldest temperatures (9 °C in average) during the Antarctic Cold Reversal (ACR). Between ca. 8000 and 3500 cal. years BP, the chironomid-inferred air temperatures were warmer-than-the-average with a decreasing trend. From ca. 3500 cal. years BP to the present, the chironomid-inferred temperatures oscillated around the average. The difference between the chironomid-inferred air temperature in the surface sample and the climate normal (19611990) was 0.6 °C, suggesting that chironomids are sensitive enough to quantitatively reconstruct MAT at PTA. The general pattern of temperature changes reconstructed by the PTA chironomid record corresponded well to other quantitative records in the Southern Hemisphere. The results presented here show that investing in the development of chironomid transfer functions for quantitative climate research in the Southern Hemisphere is valuable.","pubRank":"1"}],"site":[{"NOAASiteId":"62017","siteName":"Laguna Potrok Aike Cores PTA02/4 and PTA03/12-13","siteCode":null,"mappable":"Y","locationName":"Continent>South America>Argentina","geo":{"geoType":"Feature","geometry":{"type":"POLYGON","coordinates":["-51.96075","-51.95667","-70.37954","-70.37722"]},"properties":{"southernmostLatitude":"-51.96075","northernmostLatitude":"-51.95667","westernmostLongitude":"-70.37954","easternmostLongitude":"-70.37722","minElevationMeters":"113","maxElevationMeters":"113"}},"paleoData":[{"dataTableName":"PotrokAike.Massaferro.2013","NOAADataTableId":"43757","earliestYear":15316,"mostRecentYear":73,"timeUnit":"cal yr BP","earliestYearBP":15316,"mostRecentYearBP":73,"earliestYearCE":-13366,"mostRecentYearCE":1877,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_NOAA_files/PotrokAike.Massaferro.2013.txt","urlDescription":"NOAA Template File","linkText":"Potrok Aike Air Temperature Reconstruction","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|INSECT|PALEOLIMNOLOGY","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":"reconstruction material>biological assemblage>midge assemblage","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Dec-Feb","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"63-lake Argentinian training set described in same publication; WAPLS","cvFormat":"Numeric","cvShortName":"temperature"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|INSECT|PALEOLIMNOLOGY","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>centimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"depth"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|INSECT|PALEOLIMNOLOGY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"age"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|INSECT|PALEOLIMNOLOGY","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":"reconstruction material>biological assemblage>midge assemblage","cvError":"unspecified error>unspecified error upper bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Dec-Feb","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"uncertainty"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|INSECT|PALEOLIMNOLOGY","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":"reconstruction material>biological assemblage>midge assemblage","cvError":"unspecified error>unspecified error lower bound","cvUnit":"temperature unit>degree Celsius","cvSeasonality":"3-month period>Dec-Feb","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"uncertainty-1"}],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/reconstructions/climate12k/temperature/version1.0.0/Temp12k_directory_LiPD_files/PotrokAike.Massaferro.2013.lpd","urlDescription":"Linked Paleo Data (LiPD) File","linkText":"Potrok Aike Air Temperature Reconstruction","variables":[],"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}