{"NOAAStudyId":"5867","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":"2003-01-15","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-5867.xml","doi":null,"earliestYearBP":13422,"earliestYearCE":-11472,"entryId":"noaa-ocean-5867","funding":[],"investigators":"Barron, J.A.; Heusser, L.E.; Herbert, T.D.; Lyle, M.","mostRecentYearBP":157,"mostRecentYearCE":1793,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5867","originalSource":null,"publication":[{"abstract":"Holocene and latest Pleistocene oceanographic conditions and the coastal climate of northern California\r\nhave varied greatly, based upon high-resolution studies (ca. every 100 years) of diatoms, alkenones, pollen,\r\nCaCO3%, and total organic carbon at Ocean Drilling Program (ODP) Site 1019 (41.682 N, 124.930 W, 980 m\r\nwater depth). Marine climate proxies (alkenone sea surface temperatures [SSTs] and CaCO3%) behaved\r\nremarkably like the Greenland Ice Sheet Project (GISP)-2 oxygen isotope record during the Bølling-Allerod,\r\nYounger Dryas (YD), and early part of the Holocene. During the YD, alkenone SSTs decreased by >3 C below\r\nmean Bølling-Allerod and Holocene SSTs. The early Holocene (ca. 11.6 to 8.2 ka) was a time of generally warm\r\nconditions and moderate CaCO3 content (generally >4%). The middle part of the Holocene (ca. 8.2 to 3.2 ka)\r\nwas marked by alkenone SSTs that were consistently 1-2 C cooler than either the earlier or later parts of the\r\nHolocene, by greatly reduced numbers of the gyre-diatom Pseudoeunotia doliolus (<10%), and by a permanent\r\ndrop in CaCO3% to <3%. Starting at ca. 5.2 ka, coastal redwood and alder began a steady rise, arguing for\r\nincreasing effective moisture and the development of the north coast temperate rain forest. At ca. 3.2 ka, a\r\npermanent ca. 1 C increase in alkenone SST and a threefold increase in P. doliolus signaled a warming of fall\r\nand winter SSTs. Intensified (higher amplitude and more frequent) cycles of pine pollen alternating with\r\nincreased alder and redwood pollen are evidence that rapid changes in effective moisture and seasonal\r\ntemperature (enhanced El Nino-Southern Oscillation [ENSO] cycles) have characterized the Site 1019 record\r\nsince about 3.5 ka.\r\n","author":null,"citation":"Barron, J.A., L. Heusser, T. Herbert, and M. Lyle. 2003. High Resolution Climatic Evolution of Coastal Northern California During the Past 16,000 Years. Paleoceanography, 18(1), 1020. doi: 10.1029/2002PA000768\r\n","edition":null,"identifier":{"id":"10.1029/2002PA000768","type":"doi","url":"http://dx.doi.org/10.1029/2002PA000768"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2003,"reportNumber":null,"title":"High Resolution Climatic Evolution of Coastal Northern California During the Past 16,000 Years","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"52227","geo":{"geoType":"Feature","geometry":{"coordinates":["41.68194","-124.93"],"type":"POINT"},"properties":{"easternmostLongitude":"-124.93","maxElevationMeters":"-980","minElevationMeters":"-980","northernmostLatitude":"41.68194","southernmostLatitude":"41.68194","westernmostLongitude":"-124.93"}},"locationName":"Ocean>Pacific Ocean>Eastern Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"19934","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/barron2003/barron2003.txt","linkText":"barron2003.txt","urlDescription":"Original Data and Full Metadata","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers","earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1019-tab.txt","linkText":"odp1019-tab.txt","urlDescription":"Alternate Format Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>organic compound index>alkenone unsaturation index","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"C37:2+C37:3+C37:4","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count","cvWhat":"chemical composition>compound>organic compound>organooxygen compound>ketone>alkenone"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"weight percent","cvWhat":"geological material>identified mineral>carbonate>calcium carbonate"}]}],"dataTableName":"ODP1019","dataTableNotes":null,"earliestYear":13422,"earliestYearBP":13422,"earliestYearCE":-11472,"mostRecentYear":157,"mostRecentYearBP":157,"mostRecentYearCE":1793,"species":[],"timeUnit":"cal yr BP"}],"siteName":"ODP 1019"}],"studyCode":null,"studyName":"Barron et al. 2003 N. Coastal California High Res. Holocene/Pleistocene Oceanographic Data","studyNotes":"Alkenone SST estimated using the Prahl et al. [1988] calibration: Uk37 = 0.034T+0.039","version":"1.0","xmlId":"2722"}