Santa Barbara Basin 640 Year Alkenone Sea Surface Temperature Zhao, M.; Eglinton, G.; Read, G.; Schimmelmann, A. Zhao, M. Eglinton, G. Read, G. Schimmelmann, A. PAGES Ocean 2k Sea Surface Temperature Reconstruction earth science/paleoclimate/climate reconstructions|paleoceanography (age,null,null,year Common Era,null,climate reconstructions|paleoceanography,null,null,N,revised age model) earth science/paleoclimate/climate reconstructions|paleoceanography (notes,null,null,null,null,climate reconstructions|paleoceanography,null,null,C,core ID) earth science/paleoclimate/climate reconstructions|paleoceanography (age,null,null,year Common Era,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,Prahl et al. 1998 calibration) earth science/paleoclimate/reconstructions (SABA87-2>LATITUDE 34.2267>LONGITUDE -120.0167) Analyses for C37 alkenones (U37K') and total organic carbon (TOC) in a varved core from the depocenter of the Santa Barbara Basin (34deg13.5'N, 120deg01'W, 590 m water depth) have been made on an approximately 1-2 year basis from A.D. 1440 to 1940. The U37K'-based sea surface temperature (SST) record oscillates around 15.5C with an amplitude of less than 3C at approximately interannual, decadal, and centennial frequencies. Historical El Nino/Southern Oscillation (ENSO) events are matched only partially by warmer U37K' SSTs. Three records: our SST, a published Pacific coral d18O, and a published tree-ring temperature anomaly from the California valleys, show no evidence of colder temperatures during the Little Ice Age (ca. 1500 to 1840 A.D.). Significantly, there is a strong centennial-scale cyclicity in the U37K' SST record which approaches 1C in amplitude. TOC burial and alkenone fluxes are largely controlled by sedimentation rate as expressed in varve thickness. STUDY NOTES: High resolution (near-annual) alkenone-derived SST from varved sediments collected in the Santa Barbara Basin. The data were originally published in Zhao et al., 2000, also presented here with a recently thoroughly revised chronology. The alkenone-based SST record is a composite record of 2 marine sediment box cores, SABA87-2 and SABA88-1, retrieved from the same location. The data with revised chronology have been utilized in the PAGES Ocean2k synthesis effort (McGregor et al.). NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Zhao, M. Investigator : Eglinton, G. Investigator : Read, G. Investigator : Schimmelmann, A. 2015-01-12 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/17755 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000revised.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000revised.txt English https://www.ncdc.noaa.gov/paleo/study/17755 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/zhao2000/zhao2000revised.txt Meixun Zhao, Geoffrey Eglinton, Gareth Read, Arndt Schimmelmann 2000An alkenone (U37K') quasi-annual sea surface temperature record (A.D. 1440 to 1940) using varved sediments from the Santa Barbara BasinOrganic Geochemistry319903-91710.1016/S0146-6380(00)00034-6 Ingrid L. Hendy, L. Dunn, A. Schimmelmann, D.K. Pak2013Resolving varve and radiocarbon chronology differences during the last 2000 years in the Santa Barbara Basin sedimentary record, California.Quaternary International310155-16810.1016/j.quaint.2012.09.006 Arndt Schimmelmann, Ingrid L. Hendy, Larianna Dunn, Dorothy K. Pak, and Carina B. Lange2013Revised ~2000-year chronostratigraphy of partially varved marine sediment in Santa Barbara Basin, CaliforniaGFF1353-4258-26410.1080/11035897.2013.773066 START YEAR: 1297 AD * END YEAR: 1941 AD -120.0167 34.2267 -120.0167 34.2267