noaa-ocean-16464 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2024-01-22 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - South Atlantic Late Pleistocene Sea Surface Temperature, Dust and Paleoproductivity Data 2014-05-17 publication doi:10.25921/0bwg-7b55 noaa-ocean-16464 NCEI DSI 1200_02 NCEI DSI 1200_01 Anderson, R.F. originator Anderson, R.F. author Fleisher, M.Q. originator Fleisher, M.Q. author Sachs, J.P. originator Sachs, J.P. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of South Atlantic Ocean. The time period coverage is from 101960 to 2010 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > geochemistry theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: mineral matter; Material: sediment What: biogenic silica; Material: sediment What: 232Th; Material: sediment What: 230Th; Material: sediment What: 238U; Material: sediment What: 230Th excess; Material: sediment What: calcium carbonate; Material: sediment What: age; Material: null What: 238U; Material: sediment What: 230Th excess; Material: sediment What: 232Th; Material: sediment What: organic carbon; Material: sediment What: alkenone unsaturation index Uk37; Material: null What: accumulation rate; Material: sediment What: accumulation rate; Material: sediment What: alkenone unsaturation index Uk37 prime; Material: null What: sea surface temperature; Material: alkenone unsaturation index What: alkenone; Material: null What: depth; Material: null What: 230Th; Material: sediment theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Ocean > Atlantic Ocean > South Atlantic Ocean > TN057-06 > LATITUDE -42.91 > LONGITUDE 8.9 Ocean > Atlantic Ocean > South Atlantic Ocean > TN057-21-PC2 > LATITUDE -41.13 > LONGITUDE 7.82 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Anderson, R.F.; Fleisher, M.Q.; Sachs, J.P. (2014-05-17): NOAA/WDS Paleoclimatology - South Atlantic Late Pleistocene Sea Surface Temperature, Dust and Paleoproductivity Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/0bwg-7b55. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose otherRestrictions None otherRestrictions 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. Biological response to millennial variability of dust supply in the subantarctic South Atlantic Ocean 2014 publication Anderson, R.F., S. Barker, M.Q. Fleisher, R. Gersonde, S.L. Goldstein, G. Kuhn, P.G. Mortyn, K. Pahnke, and J.P. Sachs author Philosophical Transactions of The Royal Society A publisher https://doi.org/10.1098/rsta.2013.0054 HTTPS Web Browser Associated Reference published 2014 Anderson, R.F., S. Barker, M.Q. Fleisher, R. Gersonde, S.L. Goldstein, G. Kuhn, P.G. Mortyn, K. Pahnke, and J.P. Sachs, 2014: Biological response to millennial variability of dust supply in the subantarctic South Atlantic Ocean. Philosophical Transactions of The Royal Society A, 372, 2077-2079, 10.1098/rsta.2013.0054 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 101960 cal yr BP to 2010 cal yr BP; 7.82 8.9 -42.91 -41.13 -100010 -60 STUDY NOTES: Lithogenic material fluxes of organic carbon, biogenic opal and alkenones over the past 100,000 years, determined using the 230Th-normalization method. Portions of the data reported here were described previously in the four papers by Sachs and co-workers, cited below, as well as in the paper by Martinez-Garcia et al., cited below. EXPLANATION OF DERIVED PARAMETERS: xs230Tho (initial unsupported 230Th concentration): xs230Tho refers to the measured value as corrected for ingrowth of 230Th from authigenic and detrital (lithogenic) uranium. These values are calculated using measured concentrations of 230Th, 232Th and 238U, and assuming that all 232Th is detrital in nature. It also assumes a detrital U/Th ratio, which varies by region. Concentrations are finally corrected for decay since deposition. 230Th-normalized mass flux (Flux: g/cm^2/kyr): 230Th-normalized mass accumulation rate (or flux) For a discussion of this proxy and the relevant corrections and parameters, please see Francois et al. (2004), cited above. Lithogenic content: The lithogenic content of the dry bulk sediment was calculated from the measured 232Th concentration assuming that the lithogenic material has a uniform 232Th concentration of 10 ppm. The 230Th-normalized flux of any constituent can be derived by multiplying the 230Th-normalized mass flux by the reported concentration of the constituent. Alkenone SSTs were calculated using the definition of Uk'37 = C37:2 / (C37:2 + C37:3) and temperature calibration Uk'37 = 0.034*SST + 0.039 from Prahl, F.G., Muehlhausen, L.A., Zahnle, D.L., 1988. Further evaluation of long-chain alkenones as indicators of paleoceanographic conditions. Geochimica et Cosmochimica Acta 52, 2303-2310. ABSTRACT SUPPLIED BY ORIGINATOR: Fluxes of lithogenic material and fluxes of three palaeo-productivity proxies (organic carbon, biogenic opal and alkenones) over the past 100 000 years were determined using the 230Th-normalization method in three sediment cores from the Subantarctic South Atlantic Ocean. Features in the lithogenic flux record of each core correspond to similar features in the record of dust deposition in the EPICA Dome C ice core. Biogenic fluxes correlate with lithogenic fluxes in each sediment core. Our preferred interpretation is that South American dust, most probably from Patagonia, constitutes a major source of lithogenic material in Subantarctic South Atlantic sediments, and that past biological productivity in this region responded to variability in the supply of dust, probably due to biologically available iron carried by the dust. Greater nutrient supply as well as greater nutrient utilization (stimulated by dust) contributed to Subantarctic productivity during cold periods, in contrast to the region south of the Antarctic Polar Front (APF), where reduced nutrient supply during cold periods was the principal factor limiting productivity. The anti-phased patterns of productivity on opposite sides of the APF point to shifts in the physical supply of nutrients and to dust as cofactors regulating productivity in the Southern Ocean. 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Native Format(s) https://doi.org/10.25921/0bwg-7b55 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/16464 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-21pc2.txt HTTPS Download /contributions_by_author/anderson2014/anderson2014-21pc2.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/anderson2014/anderson2014-06pc4.txt HTTPS Download /contributions_by_author/anderson2014/anderson2014-06pc4.txt Original Data and Full Metadata download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21