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NOAA/WDS Paleoclimatology - Eastern Equatorial Atlantic Primary Productivity, Sea Surface Temperature and Salinity Reconstructions over the last 44 kyr

browse graphicPaleoclimatology - Climate Reconstruction
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 Climate Reconstruction. The data include parameters of climate reconstructions|paleoceanography with a geographic location of South Atlantic Ocean. The time period coverage is from 43422 to 1540 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Hardy, W.; Marret, F.; Penaud, A.; le Mézo, P.; Droz, L.; Marsset, T.; Kageyama, M. (2020-04-15): NOAA/WDS Paleoclimatology - Eastern Equatorial Atlantic Primary Productivity, Sea Surface Temperature and Salinity Reconstructions over the last 44 kyr. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bwze-0521. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-recon-30072
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DistributorNOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Data Center Contact
NOAA World Data Service for Paleoclimatology
828-271-4800
paleo@noaa.gov
Coverage DescriptionDate Range: 43422 cal yr BP to 1540 cal yr BP;
Time Period-41472 to 410
Spatial Bounding Box Coordinates
N: -5.7
S: -5.7
E: 11.23
W: 11.23
Spatial Coverage Map
General Documentation
Associated Resources
  • Quantification of last glacial-Holocene net primary productivity and upwelling activity in the equatorial eastern Atlantic with a revised modern dinocyst database
    • Associated Reference published 2018
      Hardy, William; Marret, Fabienne; Penaud, Aur̩lie; le Mézo, Priscilla; Droz, Laurence; Marsset, Tania; Kageyama, Masa, 2018: Quantification of last glacial-Holocene net primary productivity and upwelling activity in the equatorial eastern Atlantic with a revised modern dinocyst database. Palaeogeography, Palaeoclimatology, Palaeoecology, 505, 410-427, 10.1016/j.palaeo.2018.06.025
Publication Dates
  • publication: 2020-04-15
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress StatusComplete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: Metadata are from the Temperature-12k project (https://doi.org/10.25921/4RY2-G808). Data are from the supplemental material of Hardy et al. 2018 (https://doi.org/10.1016/j.palaeo.2018.06.025).
ABSTRACT SUPPLIED BY ORIGINATOR: In order to better explore quantitative reconstructions of net primary productivity (NPP) conditions using a dinoflagellate cyst (dinocyst)-based transfer function method, we revised the tropical Atlantic modern dinocyst database n=208 (Marret et al., 2008). Modern assemblages from the worldwide dinocyst atlas (Zonneveld et al., 2013) were added to provide a better geographical coverage of the South Atlantic Ocean. The environmental dataset was updated using the World Ocean Atlas 2013 for sea-surface temperature (SST) and sea-surface salinity (SSS) data, as well as for 1997–2017 mean NPP values recorded during SeaWifs and MODIS spatial programs. New environmental datasets were tested using anomalies regarding mean latitudinal SST as a potential index to track past upwelling activity. Finally, preindustrial NPP values, simulated with the IPSL-CM5ALR model developed at the Institut Pierre Simon Laplace (IPSL) have been added to the dinocyst environmental database to provide NPP values consistent with the mean age of “modern” dinocyst assemblages. The transfer function method using the updated modern database was then applied to fossil dinocyst assemblages of core KZAI-01, retrieved off the Congo River mouth and covering the last 43.2kyr. Our results indicate a dominant orbital forcing, with higher primary productivity values reconstructed during precession minima (MIS 3 and the last deglaciation) and enhanced by a maximum of obliquity during the last deglaciation and the Holocene. The synchronicity between high upwelling intensity and high terrigenous inputs during high NPP period (e.g. during the last Deglaciation) highlighted the prevalent role of river-induced upwelling activity, which is specific to the Congo River. These results have improved our understanding of the environmental forcing leading to major trophic changes in the intertropical area.
PurposeRecords of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations.
Dataset Citation
  • Cite as: Hardy, W.; Marret, F.; Penaud, A.; le Mézo, P.; Droz, L.; Marsset, T.; Kageyama, M. (2020-04-15): NOAA/WDS Paleoclimatology - Eastern Equatorial Atlantic Primary Productivity, Sea Surface Temperature and Salinity Reconstructions over the last 44 kyr. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bwze-0521. Accessed [date].
  • 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.
Cited Authors
  • Hardy, W.
  • Marret, F.
  • Penaud, A.
  • le Mézo, P.
  • Droz, L.
  • Marsset, T.
  • Kageyama, M.
Originators
  • Hardy, W.
  • Marret, F.
  • Penaud, A.
  • le Mézo, P.
  • Droz, L.
  • Marsset, T.
  • Kageyama, M.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywordsGlobal Change Master Directory (GCMD) Science Keywords
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Paleoclimate Reconstructions
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > climate reconstructions|paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleocean > reconstruction
  • earth science > paleoclimate > reconstructions > sea surface temperature
  • Sea Surface Temperature Reconstruction
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: sea surface temperature; Material: dinoflagellate assemblage
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: sea surface temperature; Material: dinoflagellate assemblage
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: sea surface temperature; Material: dinoflagellate assemblage
  • What: sea surface temperature; Material: dinoflagellate assemblage
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: identified dinoflagellate; Material: null
  • What: age; Material: null
  • What: depth; Material: null
  • What: primary productivity; Material: dinoflagellate assemblage
  • What: salinity; Material: dinoflagellate assemblage|sea surface
  • What: identified dinoflagellate; Material: null
Data Center keywordsGlobal Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Ocean > Atlantic Ocean > South Atlantic Ocean > KZAI_01 > LATITUDE -5.7 > LONGITUDE 11.23
Use Constraints
  • Cite as: Hardy, W.; Marret, F.; Penaud, A.; le Mézo, P.; Droz, L.; Marsset, T.; Kageyama, M. (2020-04-15): NOAA/WDS Paleoclimatology - Eastern Equatorial Atlantic Primary Productivity, Sea Surface Temperature and Salinity Reconstructions over the last 44 kyr. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bwze-0521. Accessed [date].
  • 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.
  • 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.
Access Constraints
  • 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.
  • None
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Last Modified: 2023-09-01
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