An 800-kyr planktonic 𝜹18O stack for the Western Pacific Warm Pool

<p><strong>Our 10 core planktonic </strong>𝜹<strong>18O WPWP stack is available as the "WPWP_planktonic_stack.txt" file, which contains the age, mean </strong>𝜹<strong>18O, and 1 sigma </strong>𝜹<strong>18O alignment uncertainty. The same file is also available under the name&nbsp;"stack.txt" in the Output folder. The stack was produced using alignment software BIGMACS (Lee and Rand et al., 2022).</strong></p><p><strong>The previously published depth and planktonic </strong>𝜹<strong>18O as well as any radiocarbon or additional age constraints for each core used during stack construction can be found in the Inputs folder. This study's&nbsp;BIGMACS produced age models, depth, and planktonic </strong>𝜹<strong>18O data for each core can be found in the Outputs folder under the "results.mat" file or as .txt files in the individual folders named for each core.</strong></p><p><strong>Additional BIGMACS input and output files for planktonic </strong>𝜹<strong>18O from Timor Sea (near the WPWP) core MD01-2378 (Holborn et al., 2005) are provided to demonstrate the alignment and age model differences between using the our new regional planktonic </strong>𝜹<strong>18O WPWP stack and the global benthic </strong>𝜹<strong>18O LR04 stack as alignment targets.&nbsp;</strong> <strong>Differences between the two stacks during MIS 3 and 4 produce a ~17 kyr error in the alignment of the core to the LR04 stack at ~77 kyr ago (depth 8.81 m in core MD01-2378). Because the planktonic </strong>𝛿<strong>18O records near the WPWP share features which differ from those of benthic </strong>𝛿<strong>18O, age model results are expected be more accurate when these planktonic </strong>𝛿<strong>18O records are aligned to the WPWP stack than to a benthic stack.</strong></p><p>Holbourn, A. E., Kuhnt, W., Kawamura, H., Jian, Z. Grootes, P. M., Erlenkeuser, H., and Xu, J.: Stable isotopes on planktic foraminifera of sediment core MD01-2378, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.263757, 2005.</p><p>Lee, T., Rand, D., Lisiecki, L. E., Gebbie, G., and Lawrence, C. E.: Bayesian age models and stacks: Combining age inferences from radiocarbon and benthic 𝜹18O stratigraphic alignment, EGUsphere, 1–29,<a href="https://doi.org/10.5194/egusphere-2022-734"> https://doi.org/10.5194/egusphere-2022-734</a>, 2022.</p><p>Lisiecki, L. E., and Raymo, M. E.: A Pliocene-Pleistocene stack of 57 globally distributed benthic 𝜹18O records, Paleoceanogr., 20,<a href="https://doi.org/10.1029/2004PA001071"> PA1003, https://doi.org/10.1029/2004PA001071</a>, 2005.</p>