Compilation of planktonic foraminiferal census counts from the Southern Hemisphere Oceans, supplement to: Haddam, Naoufel; Michel, Elisabeth; Siani, Giuseppe; Cortese, Giuseppe; Bostock, Helen C; Duprat, Josette M; Isguder, Gulay (2016): Improving past sea surface temperature reconstructions from the Southern Hemisphere oceans using planktonic foraminiferal census data. Paleoceanography, 31(6), 822-837

DOI

We present an improved database of planktonic foraminiferal census counts from the Southern Hemisphere Oceans (SHO) from 15°S to 64°S. The SHO database combines 3 existing databases. Using this SHO database, we investigated dissolution biases that might affect faunal census counts. We suggest a depth/[DCO3]2- threshold of ~3800 m/[DCO3]2- = ~-10 to -5 µmol/kg for the Pacific and Indian Oceans, and ~4000 m/[DCO3]2- = ~0 to 10 µmol/kg for the Atlantic Ocean, under which core-top assemblages can be affected by dissolution and are less reliable for paleo-sea surface temperature (SST) reconstructions. We removed all core-tops beyond these thresholds from the SHO database. This database has 598 core-tops and is able to reconstruct past SST variations from 2° to 25.5°C, with a root mean square error of 1.00°C, for annual temperatures. To inspect dissolution affects SST reconstruction quality, we tested the data base with two "leave-one-out" tests, with and without the deep core-tops.We used this database to reconstruct Summer SST (SSST) over the last 20 ka, using the Modern Analog Technique method, on the Southeast Pacific core MD07-3100. This was compared to the SSST reconstructed using the 3 databases used to compile the SHO database. Thus showing that the reconstruction using the SHO database is more reliable, as its dissimilarity values are the lowest. The most important aspect here is the importance of a bias-free, geographic-rich, database. We leave this dataset open-ended to future additions; the new core-tops must be carefully selected, with their chronological frameworks, and evidence of dissolution assessed.

Identifier
DOI https://doi.org/10.1594/PANGAEA.860938
Related Identifier https://doi.org/10.1002/2016PA002946
Related Identifier https://doi.org/10.1016/S0031-0182(97)00095-3
Related Identifier https://doi.org/10.1594/PANGAEA.821243
Related Identifier https://doi.org/10.1002/palo.20052
Related Identifier https://doi.org/10.1594/PANGAEA.733763
Related Identifier https://doi.org/10.1029/93PA03524
Related Identifier https://doi.org/10.1594/PANGAEA.227322
Related Identifier https://doi.org/10.1029/PA004i006p00629
Related Identifier https://doi.org/10.1016/j.epsl.2011.11.030
Related Identifier https://doi.org/10.1016/S0377-8398(97)00045-5
Related Identifier https://doi.org/10.1029/1999PA900012
Related Identifier https://doi.org/10.1029/93PA01162
Related Identifier https://doi.org/10.1029/95PA01743
Related Identifier https://www.ncdc.noaa.gov/paleo/metadata/noaa-ocean-5908.html
Related Identifier https://doi.org/10.1594/PANGAEA.96900
Related Identifier https://doi.org/10.1016/S0031-0182(97)00004-7
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.860938
Provenance
Creator Haddam, Naoufel; Michel, Elisabeth; Siani, Giuseppe; Cortese, Giuseppe; Bostock, Helen C; Duprat, Josette M; Isguder, Gulay
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2016
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 31420 data points
Discipline Geology
Spatial Coverage (-179.700W, -64.550S, 180.000E, 0.000N); South Pacific Ocean; South Pacific/CONT RISE; Indian Ocean; South Atlantic Ocean; Mozambique Channel; Tasman Sea; Walvis Ridge; Angola Basin; Cape Basin; Hunter Channel; Eastern Rio Grande Rise; West Angola Basin; Mid Atlantic Ridge; East Brazil Basin; Namibia Continental Margin; Namibia continental slope; South African margin; Brazil Basin; Slope off Argentina; off Chile; Southeast Pacific; Réunion Hotspot; Bay of Plenty, New Zealand; South Pacific; South Indian Ocean; Southern Ocean; Vanuatu; Coral Sea; Southwest Pacific Ocean; Hikurangi margin; Atlantic Indik Ridge; Meteor Rise; Shona Ridge; Atlantic Ridge; Agulhas Basin; Discovery Seamount; South Atlantic; Agulhas Ridge; Islas Orcadas; Scotia Sea, southwest Atlantic; Falkland Islands; Conrad Rise; Bounty Trough, Southwest Pacific; South Tasman Rise; Atlantic Ocean
Temporal Coverage Begin 1874-06-13T00:00:00Z
Temporal Coverage End 2012-02-13T00:00:00Z