PANGAEA_993405 Updated ages and age uncertainty for sea-surface and thermocline temperature data used to assess last millennium Pacific Walker Circulation Hess, Anya V; Wang, Shouyi; Ummenhofer, Caroline C; Rosenthal, Yair; Oppo, Delia W Updated ages and age uncertainty for sea-surface and thermocline temperature data used to assess last millennium Pacific Walker Circulation 2026-04-14 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993405 Investigator Anya V Hess dranyahess@gmail.com Earth Science Event label Campaign Year of sampling LATITUDE LONGITUDE ELEVATION Device type Site Species Data type DEPTH, sediment/rock Calendar age, median Sea surface temperature Age Thermocline water temperature Reference/source geoscientificInformation BJ8-03-31MC BJ8-03-32GGC BJ8-03-34GGC BJ8-03-6MC BJ8-03-7GGC Calypso Corer Foraminifera GeoB10065-7 Gravity corer Gravity corer (Kiel type) Indonesian Throughflow KNR195-5 KNR195-5-MC42 Little Ice Age MD111 MD982160 MD98-2160 medieval climate anomaly Mg/Ca Mg/Ca planktonic foraminifera MultiCorer Pacific Water Circulation Pulleniatina obliquiloculata SO184/2 Thermocline thermocline depth thermocline water temperature Sonne Knorr Marion Dufresne (1995) 2005-09-05 2005-09-05 Complete -9.223167 -1.253 115.3531 -89.68549999999999 access rights needed CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 74937 data points text/tab-separated-values Anand, Pallavi; Elderfield, Henry; Conte, Maureen H (2003): Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series. Paleoceanography, 18(2), 1050, https://doi.org/10.1029/2002PA000846 Esswein, Katherine Lee (2012): Patterns of climate variability in the western equatorial Pacific during the Common Era [dissertation]. Rutgers University-Graduate School-New Brunswick Hess, Anya V; Ummenhofer, Caroline C; Rosenthal, Yair; Oppo, Delia W (in review): A Strong Pacific Walker Circulation During the Little Ice Age. Hollstein, Martina; Mohtadi, Mahyar; Rosenthal, Yair; Moffa-Sanchez, Paola; Oppo, Delia W; Martínez-Méndez, Gema; Steinke, Stephan; Hebbeln, Dierk (2017): Stable Oxygen Isotopes and Mg/Ca in Planktic Foraminifera From Modern Surface Sediments of the Western Pacific Warm Pool: Implications for Thermocline Reconstructions. Paleoceanography, 32(11), 1174-1194, https://doi.org/10.1002/2017PA003122 McKay, Nicholas; Emile-Geay, J; Khider, D (2021): geoChronR – an R package to model, analyze, and visualize age-uncertain data. Geochronology (GChron), 3(1), 149-169, https://doi.org/10.5194/gchron-3-149-2021 Newton, A; Thunell, Robert C; Stott, Lowell D (2006): Climate and hydrographic variability in the Indo‐Pacific Warm Pool during the last millennium. Geophysical Research Letters, 33(19), 2006GL027234, https://doi.org/10.1029/2006GL027234 Oppo, Delia W; Rosenthal, Yair; Linsley, Braddock K (2009): 2,000-year-long temperature and hydrology reconstructions from the Indo-Pacific warm pool. Nature, 460(7259), 1113-1116, https://doi.org/10.1038/nature08233 Rustic, Gerald T; Koutavas, Athanasios; Marchitto, Thomas M; Linsley, Braddock K (2015): Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling. Science, 350(6267), 1537-1541, https://doi.org/10.1126/science.aac9937 Steinke, Stephan; Prange, Matthias; Feist, Christin; Groeneveld, Jeroen; Mohtadi, Mahyar (2014): Upwelling variability off southern Indonesia over the past two millennia. Geophysical Research Letters, 41(21), 7684-7693, https://doi.org/10.1002/2014GL061450

This data accompanies Hess et al. (2026, Science Advances). It consists of Last Millennium (750 CE to present) sea-surface and thermocline temperature data used to assess the strength of the Pacific Walker Circulation of the last millennium. Ages have been updated to Marine20 and generated, with age uncertainty, using geoChronR (McKay et al., 2021). See Hess et al. (2026) for detailed methodology. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993405"!

http://en.wikipedia.org/wiki/Elevation ELEVATION http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE https://doi.org/10.1002/2014GL061450 Upwelling variability off southern Indonesia over the past two millennia https://doi.org/10.1002/2017PA003122 Stable Oxygen Isotopes and Mg/Ca in Planktic Foraminifera From Modern Surface Sediments of the Western Pacific Warm Pool: Implications for Thermocline Reconstructions https://doi.org/10.1029/2002PA000846 Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series https://doi.org/10.1029/2006GL027234 Climate and hydrographic variability in the Indo‐Pacific Warm Pool during the last millennium https://doi.org/10.1038/nature08233 2,000-year-long temperature and hydrology reconstructions from the Indo-Pacific warm pool https://doi.org/10.1126/science.aac9937 Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling https://doi.org/10.5194/gchron-3-149-2021 geoChronR – an R package to model, analyze, and visualize age-uncertain data https://en.wikipedia.org/wiki/Marion_Dufresne_(1994) Marion Dufresne (1995) https://en.wikipedia.org/wiki/RV_Sonne Sonne https://en.wikipedia.org/wiki/Species Species https://nbn-resolving.org/urn:nbn:de:gbv:46-ep000100431 SO184/2 DIF 9.4 2026-04-14 2026-04-14