Earth Institute Research Projects

Collaborative Research: Developing a Continous Replicated Reconstruction of Tropical Pacific Climate Over the Last 500-700 Years: Analysis of Massive Porites Corals from American Samoa

Lead PI: Dr. Braddock K. Linsley Robert Dunbar

Unit Affiliation: Biology and Paleo Environment, Lamont-Doherty Earth Observatory (LDEO)

August 2012 - July 2015
Pacific Ocean ; Ta'u, American Samoa ; Lamont Doherty Earth Observatory ; Stanford University
Project Type: Research

DESCRIPTION: Funding will support a post-doc to carry out research on SST and SSS patterns in American Samoa.

OUTCOMES: Have published 2 papers on the coral d18O and d13C time-series generated from this long coral core from Ta'u American Samoa. See papers Tangri et al. (2018) and Linsley et al. (2019).


National Science Foundation (NSF)




Stanford University



Linsley, B. K., R. B. Dunbar, E. P. Dassié, N. Tangri, H. C. Wu, L. D. Brenner, G. M. Wellington, Coral Carbon Isotope Sensitivity to Growth Rate and Water Depth with Palaeo-Sea Level Implications, Published on-line May 3, 2019, Nature Communications, (2019) 10:2056|, shortened URL:, Columbia University Academic Commons link:

Tangri, N., R. B. Dunbar, B. K. Linsley, D. A. Mucciarone, ENSO's Shrinking 20th Century Footprint Revealed in a Half‐millennium Coral Core from the South Pacific Convergence Zone, Paleoceangraphy and Paleoclimatology, First published online: 11 October 2018


sea surface temperature medieval warm period ocean and climate physics variability sea surface salinity paleoclimate little ice age


Earth fundamentals