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O'Brien, Charlotte L; Foster, Gavin L; Martínez-Botí, Miquel Àngel; Abell, Richard; Rae, James W B; Pancost, Richard D (2014): Plio-Pleistocene Mg/Ca and TEX86 sea surface temperature records of ODP Sites 184-1143 and 165-999 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.833460, Supplement to: O'Brien, CL et al. (2014): High sea surface temperatures in tropical warm pools during the Pliocene. Nature Geoscience, 7, 606-611, https://doi.org/10.1038/ngeo2194

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Abstract:
The western warm pools of the Atlantic and Pacific oceans are a critical source of heat and moisture for the tropical climate system. Over the past five million years, global mean temperatures have cooled by 3-4 °C. Yet, current reconstructions of sea surface temperatures indicate that temperature in the warm pools has remained stable during this time. This stability has been used to suggest that tropical sea-surface temperatures are controlled by some sort of thermostat-like regulation. Here we reconstruct sea surface temperatures in the South China Sea, Caribbean Sea and western equatorial Pacific Ocean for the past five million years, using a combination of the Mg/Ca, TEXH86-and Uk'37 surface temperature proxies. Our data indicate that during the period of Pliocene warmth from about 5 to 2.6 million years ago, the western Pacific and western Atlantic warm pools were about 2 °C warmer than today. We suggest that the apparent lack of warming seen in the previous reconstructions was an artefact of low seawater Mg/Ca ratios in the Pliocene oceans. Taking this bias into account, our data indicate that tropical sea surface temperatures did change in conjunction with global mean temperatures. We therefore conclude that the temperature of the warm pools of the equatorial oceans during the Pliocene was not limited by a thermostat-like mechanism.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 0.898712 * Median Longitude: -167.384106 * South-bound Latitude: -20.587000 * West-bound Longitude: 60.551670 * North-bound Latitude: 12.744000 * East-bound Longitude: -76.378083
Date/Time Start: 1972-02-08T00:00:00 * Date/Time End: 2002-05-20T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
18 datasets

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Datasets listed in this publication series

  1. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for DSDP Hole 22-214, corrected for changes in Mg/Casw, Globigerinoides ruber. https://doi.org/10.1594/PANGAEA.833450
  2. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for DSDP Hole 22-214, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833458
  3. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for DSDP Hole 70-509B, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833459
  4. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Hole 115-709C, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833451
  5. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Hole 122-763A, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833452
  6. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 130-806, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833453
  7. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 138-847, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833454
  8. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 165-999, corrected for changes in Mg/Casw, Globigerinoides ruber. https://doi.org/10.1594/PANGAEA.833448
  9. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 165-999, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833455
  10. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S5) Globigerinoides ruber Mg/Ca data and temperature estimates for ODP Site 165-999A including Mg/Ca-SSTs corrected for changes in Mg/Casw. https://doi.org/10.1594/PANGAEA.833446
  11. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S4) Globigerinoides sacculifer Mg/Ca data and temperature estimates for ODP Site 165-999A including Mg/Ca-SSTs corrected for changes in Mg/Casw. https://doi.org/10.1594/PANGAEA.833445
  12. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S1) GDGT abundance, temperature estimates, and BIT indices for ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.833441
  13. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S2) Globigerinoides sacculifer Mg/Ca data and temperature estimates for ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.833442
  14. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S3) Mg/Ca seawater back-calculated from ODP Site 184-1143 Mg/Ca and TEX86 data on paired samples. https://doi.org/10.1594/PANGAEA.833443
  15. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S3) Mg/Ca seawater estimation for ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.833444
  16. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 202-1237, corrected for changes in Mg/Casw, Globigerinoides ruber. https://doi.org/10.1594/PANGAEA.833473
  17. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 202-1237, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833449
  18. O'Brien, CL; Foster, GL; Martínez-Botí, MÀ et al. (2014): (Table S6) Published Pliocene-Pleistocene Mg/Ca-SST data for ODP Site 202-1241, corrected for changes in Mg/Casw, Globigerinoides sacculifer. https://doi.org/10.1594/PANGAEA.833457