PP007
Climate Reconstruction from the Pacific Region: Insights into Past Oceanic and Atmospheric Conditions

Session ID#: 162851

Session Description:
The Pacific Ocean is of fundamental importance to the global climate system, particularly through its capacity to affect the global carbon cycle and heat transport. In addition, the sediments found within this basin and its marginal seas act as archives of past changes in the climate of this region. Recent studies have elucidated evidence of substantial variability in past oceanic and atmospheric circulation in various parts of the Pacific, and highlight the necessity to expand regional reconstructions spatially and temporally.

This session focuses on new and integrative climate proxy records from the Pacific Ocean, its marginal seas, and nearby terrestrial records over all timescales that enhance our understanding of climate change related to this important region. We encourage multidisciplinary contributions that utilize oceanographic or terrestrial samples in the form of empirical or modeled data to reconstruct past environmental conditions linking the ocean and atmosphere systems throughout the Pacific.

Index Terms:

1051 Sedimentary geochemistry [GEOCHEMISTRY]
4283 Water masses [OCEANOGRAPHY: GENERAL]
4825 Geochemistry [OCEANOGRAPHY: CHEMICAL]
4904 Atmospheric transport and circulation [PALEOCEANOGRAPHY]

Primary Convener:  Chloe H Anderson, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Conveners:  Jordan T Abell, University of Arizona, Tucson, AZ, United States, Christopher William Kinsley, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States and Danielle Schimmenti, Texas A&M University College Station, Geology & Geophysics, College Station, TX, United States
 
Data-Model Comparisons of Mid-Holocene Climate in the Tropical Pacific (1067534)
Raquel Pauly, Florida State University, Earth, Ocean, and Atmospheric Sciences, Tallahassee, FL, United States and Alyssa R. Atwood, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
 
Pliocene variability in the strength of the Pacific Walker Circulation (1066672)
David Fastovich1, Tripti Bhattacharya1, Ran Feng2 and Theodor Mayer3, (1)Syracuse University, Department of Earth and Environmental Sciences, Syracuse, United States, (2)University of Connecticut, Department of Geosciences, Storrs, United States, (3)University of Connecticut, Storrs, United States
 
Expansion and intensification of the North American Monsoon during the Pliocene (Invited) (1073788)
Tripti Bhattacharya1, Ran Feng2, Jessica E Tierney3, Claire B Rubbelke4, Natalie Burls5, Scott Knapp5 and Minmin Jason Fu6, (1)Syracuse University, Earth and Environmental Science, Syracuse, NY, United States, (2)University of Connecticut, Department of Geosciences, Storrs, United States, (3)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (4)University of Wisconsin Madison, Madison, United States, (5)George Mason University, Fairfax, United States, (6)Harvard University, Cambridge, MA, United States
 
Variations in the Central Equatorial Pacific Thermocline (1081636)
Allison W Jacobel, Middlebury College, Department of Earth and Climate Sciences, Middlebury, VT, United States, Raffi Najarian, Middlebury College, Department of Earth and Climate Sciences, Middlebury, United States and Lily Applebaum, Middlebury College, Department of History, and Department of Earth and Climate Sciences, Middlebury, United States
 
A Late Pleistocene Planktonic δ18O Stack of the West Pacific Warm Pool (1091779)
Christen Bowman1, Lorraine E Lisiecki2, Devin Rand1, Taehee Lee3, Geoffrey Gebbie4 and Charles Lawrence5, (1)University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, (2)University of California Santa Barbara, Earth Science, Santa Barbara, United States, (3)Harvard University, Department of Statistics, Cambridge, MA, United States, (4)Woods Hole Oceanographic Inst., Physical Oceanography, Woods Hole, MA, United States, (5)Brown University, Division of Applied Mathematics, Providence, RI, United States
 
Patterns of Glacial/Interglacial Iceberg-Rafted Debris and Calcium-Carbonate Preservation in the North Pacific Sub-polar Gyre (1092930)
Cassandra Bartels, Barnard College, Department of Environmental Science, New York, NY, United States, Gabriel A Weinstein, Lamont -Doherty Earth Observatory, Palisades, United States; Columbia University of New York, Graduate School of Arts and Sciences, New York, United States and Jerry F McManus, Lamont-Doherty Earth Observatory of Columbia University, Department of Earth and Environmental Sciences, Palisades, United States; Columbia University, Earth and Environmental Sciences, New York, United States
 
Deglacial Evolution of N2 Fixation in the North Pacific Subtropical Gyre (1101003)
Er-Wen Yang1, Haojia Abby Ren1,2, Yuan-Pin Chang3 and Min-Te Chen4, (1)National Taiwan University, Department of Geosciences, Taipei, Taiwan, (2)National Taiwan University, Research Center for Future Earth, Taipei, Taiwan, (3)National Sun Yat-sen University, Department of Oceanography, Kaohsiung, Taiwan, (4)National Taiwan Ocean University, Institute of Earth Sciences and Center of Excellence for the Oceans and Center of Excellence for Ocean Engineering, Keelung, Taiwan
 
Reconstructing mid-Pliocene El Padre thermocline conditions (Invited) (1103142)
Heather L Ford, Queen Mary, University of London, School of Geography, London, United Kingdom, Natalie Burls, George Mason University, Fairfax, United States, Deepak Chandan, University of Toronto, Physics, Toronto, ON, Canada, Karim Lakhani, Georgia Institute of Technology Main Campus, Atlanta, GA, United States, Tripti Bhattacharya, Syracuse University, Department of Earth and Environmental Sciences, Syracuse, United States, Jean Lynch-Stieglitz, Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, Alexey V Fedorov, Yale University, New Haven, United States, Heather M Benway, Woods Hole Oceanographic Inst., Woods Hole, MA, United States, Alan C Mix, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States and Ana Christina Ravelo, University of California-Santa Cruz, Santa Cruz, CA, United States
 
Reconstructing the Thermocline in the Eastern Equatorial Pacific since the Last Glacial Period (1108574)
Alexandra O'Keefe1,2, Celeste Pallone1,3 and Jerry F McManus1,3, (1)Lamont-Doherty Earth Observatory, Palisades, United States, (2)SUNY at Albany, Albany, United States, (3)Columbia University, Earth and Environmental Sciences, New York, United States
 
Reconstructing 47 kyr of Hydrological Change in the South-East Pacific using Terrestrial Sediment Cores from Rapa Nui (Easter Island) (1116952)
Redmond Stein1, William J D'Andrea1, Lorelei Curtin2, Raymond S Bradley3, Andrea Seelenfreund4 and Rafael Rapu5, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (2)Bucknell University, Geology & Environmental Geosciences, Lewisburg, PA, United States, (3)University of Massachusetts Amherst, Geosciences, Amherst, MA, United States, (4)Universidad Academia Humanismo Cristiano, Anthropology, Santiago, Chile, (5)Ma'u Henua, Archaeology, Rapa Nui, Chile
 
Inconsistencies in Thorium-Derived Dust Fluxes in the Pacific Ocean (1117620)
Anne Leal1,2, Robert F Anderson2, Martin Q Fleisher2, Erin E Black3, Christopher T Hayes4, Neil Redmond4, Peter Schroedl5, Xianglei Li6 and R. Lawrence Edwards6, (1)Columbia University, New York, United States, (2)Lamont -Doherty Earth Observatory, Palisades, United States, (3)University of Rochester, Rochester, United States, (4)University of Southern Mississippi, School of Ocean Science and Engineering, Stennis Space Center, United States, (5)Boston University, Boston, United States, (6)University of Minnesota, Department of Earth Sciences, Minneapolis, United States
 
Abrupt Changes in Southeast Pacific Surface and Intermediate Water Properties during Termination 2 (1118980)
Samantha Claudia Bova1, Yair Rosenthal2, Hailey Riechelson3, Nancy Karas4, Vincent J Clementi2, Laurel B Childress5 and Expedition 379T Participants, (1)San Diego State University, Department of Geological Sciences, San Diego, CA, United States, (2)Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, NJ, United States, (3)Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, United States, (4)San Diego State University, Department of Geological Sciences, San Diego, United States, (5)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States
 
Unlocking Climate Signal from Coastal Redwoods (Sequoia sempervirens) using Cell Anatomical Measurements (1123369)
Triana Anderson, Jonathan Pressley and Alexander Stine, San Francisco State University, Earth & Climate Sciences, San Francisco, United States
 
Reconstructing Westerly Wind Bursts and Climate over Abaiang Atoll using Coral Mn/Ca and δ18O Records (1128334)
Zoe E Benson1, Alice Chapman1, Diane Thompson2, Jessica Carilli3, Thomas M Marchitto Jr4, Hussein R Sayani5 and Kim M Cobb6, (1)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (2)University of Arizona, Department of Geosciences, Tucson, United States, (3)Scripps Institution of Oceanography, La Jolla, United States, (4)Univ Colorado, Boulder, CO, United States, (5)Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, United States, (6)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States
 
Paleoceanographic Variability in the Central South Pacific during the Late Miocene-Pliocene: A Benthic Foraminiferal Proxy (1141765)
Sunil K Das1, Raj K. Singh1 and Expedition 383 Scientists2, (1)Indian Institute of Technology Bhubaneswar, School of Earth, Ocean and Climate Sciences, Bhubaneswar, India, (2)Texas A&M University, College Station, United States
 
Evaluating middle Miocene eastern equatorial Pacific organic carbon export using marine pelagic barite and extraterrestrial 3He (1148109)
Brandon Bell1, Elizabeth M Griffith1, Kenneth A Farley2 and Jonathan Treffkorn2, (1)The Ohio State University, School of Earth Sciences, Columbus, United States, (2)California Institute of Technology, Pasadena, CA, United States
 
Strength and Oxygenation Variability of Bottom Water in Southeast Pacific During the Middle to Late Pleistocene (1148562)
Suman Datta1, Raj K. Singh1, Igor M. Venancio2, Karol Duarte2, Cristiano M Chiessi3, Stefano Crivellari3 and Expedition 383 Scientists4, (1)Indian Institute of Technology Bhubaneswar, School of Earth, Ocean and Climate Sciences, Bhubaneswar, India, (2)Programa de Geociências (Geoquímica), Universidade Federal Fluminense, Niterói, Brazil, (3)University of São Paulo, School of Arts, Sciences and Humanities, São Paulo, Brazil, (4)Texas A&M University, College Station, United States
 
Impact of the Miocene Carbonate Crash (13-8 Ma) on Bulk Carbonate d44/40Ca in the Eastern Equatorial Pacific (1153514)
Alexa Marie Marie Regnier and Elizabeth M Griffith, The Ohio State University, School of Earth Sciences, Columbus, United States
 
Large climate-driven changes in nutrient consumption in the eastern equatorial Pacific over the past 200,000 years: Evidence from a new foraminifera-bound nitrogen isotope record (1159509)
Tianshu Kong1, Thomas C Lee1, Ting Hsuan Lin1, Jesse R Farmer2, Daniel Mikhail Sigman2, Haojia Abby Ren3 and Xingchen Tony Wang1, (1)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, United States, (2)Princeton University, Department of Geosciences, Princeton, United States, (3)National Taiwan University, Department of Geosciences, Taipei, Taiwan
 
Pliocene Weakening of Gradients in Temperature but not in Productivity in the Eastern Equatorial Pacific (1165722)
Kristin Kimble and Timothy Herbert, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States
 
Middle Miocene Onset of the East Australian Current – Implications for Timing and Magnitude of Mid-Miocene Sea Level Change (1175850)
Gregor Paul Eberli1, Nor Sara Izzatti Izzatti Binti Bashah1 and Flavio Anselmetti2, (1)University of Miami, Rosenstiel School of Marine, Atmospheric, and Earth Science, Miami, United States, (2)University of Bern, Bern, Switzerland
 
Characterizing Variability in the Tropical Ocean Mixed Layer and Thermocline: Insights from Core-top Multi-species Individual Foraminiferal Analysis (IFA) (1185913)
Lael Vetter1, Kaustubh Thirumalai1 and Jennifer S Fehrenbacher2, (1)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Biogeochemical implications for deglacial Neogloboquadrina dutertrei δ¹³C in the Eastern Equatorial Pacific (1186528)
Kaustubh Thirumalai, University of Arizona, Department of Geosciences, Tucson, AZ, United States and Jordan T Abell, University of Arizona, Tucson, AZ, United States
 
North Pacific Sea Surface Temperatures Evolved Synchronously with Antarctic Ice Volume during the Miocene (1192254)
Jared Nirenberg, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States and Timothy Herbert, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States
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