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No longer at LDEO: 
Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Biology and Paleo Environment
210 Geoscience
61 Route 9W - PO Box 1000


List of degrees from highest to lowest:
University of Massachusetts, Amherst
University of Massachusetts, Amherst
Hampshire College

Lamont/DEES Student List: 
Committee member of Jonathan LaRiviere (University of California, Santa Cruz)
Committee member of Cassaundra Meyers (DEES, Columbia)
Committee member of Yonaton Golsdsmith (DEES, Columbia)

Research Blogs:

Referenced in the Following News Items:

Featured in the Following Videos:

Selected Publications:

Reduced El Niño–Southern Oscillation during the Last Glacial Maximum Ford, H.L.; Ravelo, A.C.; Polissar, P.J. Science 01/2015 Volume: 347 Issue: 6219 p.: 255-258 (2015) 10.1126/science.1258437
Glacial-Interglacial Changes in Central Tropical Pacific Surface Seawater Property Gradients Lynch-Stieglitz, J.; Polissar, P.; Jacobel, A.W.; Hovan, S.; Pockalny, R.; Lyle, M.; Murray, R.; Ravelo, A.C.; Bova, S.; Dunlea, A.; Ford, H.; Hertzberg, J.; Wertman, C.; Maloney, A.; Shackford, J.; Wejnert, K.; Xie, R. Paleoceanography (2015)
A 6,000-yr Lake Record of Drought from the Pacific Northwest Nelson, D. N.; Abbott, M. B.; Steinman, B.; Polissar, P. J.;Stansell, N.S.; Ortiz, J. S.; Rosenmeier, M. F.; Finney, B.; Riedel, J. Proceedings of the National Academy of Sciences (2011) 10.1073/pnas.1009194108
Extractable organic material in fault zones as a tool to investigate frictional stress Polissar, P. J.; Savage, H. M.; Brodsky, E. E. Earth and Planetary Science Letters (2011)
Effects of aridity and vegetation on plant-wax δD in modern lake sediments Polissar, Pratigya J.; Freeman, Katherine H. Geochimica et Cosmochimica Acta Volume: 74 p.: 5785-5797 (2010) 10.1016/j.gca.2010.06.018
Paleoaltimetry of the Tibetan Plateau from D/H ratios of lipid biomarkers Polissar, P. J.;Freeman K. H.;Rowley D. B.;Mcinerney F. A.;Currie B. S. Earth and Planetary Science Letters Volume: 287 p.: 64-76 (2009) 10.1016/j.epsl.2009.07.037
Measurement of 13C and 15N Isotopic Composition on Nanomolar Quantities of C and N Polissar, P. J.; Fulton, J. M.; Junium,C. K.;Turich,C. C.;Freeman, K. H. Analytical Chemistry Volume: 81 Issue: 2 p.: 755-763 (2009) 10.1016/j.yqres.2006.07.005
Last Glacial Maximum equilibrium-line altitude and paleo-temperature reconstructions for the Cordillera de Mérida, Venezuelan Andes Stansell, N.; Polissar, P. J.;Abbott, M. B. Quaternary Research Volume: 67 p.: 115-127 (2007) 10.1016/j.yqres.2006.07.005
Solar modulation of Little Ice Age climate in the tropical Andes Polissar, P. J.; Abbott, M. B.;Wolfe, A. P.;Bezada, M.;Rull, V.;Bradley, R. S. Proceedings of the National Academy of Sciences Volume: 103 Issue: 24 p.: 8937-8942 (2006) 10.1073 pnas.0603118103
Hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal Polissar, P. J.; Abbott, M. B.; Shemesh, A.; Wolfe, A. P.;Bradley, R. S. Earth and Planetary Science Letters Volume: 242 p.: 375-389 (2006) 10.1016/j.epsl.2005.12.024
Late Quaternary deglacial history of the Mérida Andes, Venezuela Stansell, N. D.;Abbott, M. B.;Polissar, P. J.;Wolfe, A. P.;Bezada, M.;Rull, V. Journal of Quaternary Science Volume: 20 Issue: 7-8 p.: 801-812 (2005) doi:10.1002/jqs.973
15,000-yr pollen record of vegetation change in the high altitude tropical Andes at Laguna Verde Alta, Venezuela Rull, V.;Abbott, M. B.;Polissar, P. J.; Wolfe, A. P.;Bezada, M.;Bradley, R. S. Quaternary Research Volume: 64 p.: 308-317 (2005) 10.1016/j.yqres.2005.08.014
Holocene paleohydrology and glacial history of the central Andes using multiproxy lake sediment studies Abbott, M. B.; Wolfe, B. B.; Wolfe, A. P.; Seltzer, G. O.; Aravena, R.; Mark, B. G.; Polissar, P. J.;Rodbell, D. T.;Rowe, H. D.;Vuille, M. Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 194 p.: 123-138 (2003) 10.1016/S0031-0182(03)00274-8
Carbon isotopes in aquatic plants, Long Valley caldera, California as records of past hydrothermal and magmatic activity Reid Jr., J. B.;Reynolds, J. L.; Connolly, N. T.; Getz, S. L.; Polissar, P. J.; Winship, L. J.; Hainsworth, L. J. Geophysical Research Letters Volume: 25 Issue: 15 p.: 2853-2856 (1998) 10.1029/98GL01854
Using the sunspot cycle to date ice cores Steig, E. J.;Morse, D. L.; Waddington, E. D.; Polissar, P. J. Geophysical Research Letters Volume: 25 Issue: 2 p.: 163-166 (1998) 10.1029/97GL03566
Large amplitude solar modulation cycles of 10Be in Antarctica: implications for atmospheric mixing processes and interpretation of the ice core record Steig, E. J.; Polissar, P. J.; Stuiver, M.; Grootes, P. M.; Finkel, R. C. Geophysical Research Letters Volume: 23 Issue: 5 p.: 523 (1996) 10.1029/96GL00255
Sliding rocks at the Racetrack, Death Valley: What makes them move? Reid Jr., J. B.; Bucklin, E. P.; Copenagle, L.; Kidder, J.; Pack, S. M.; Polissar, P. J.;Williams, M. L. Geology Volume: 23 Issue: 9 p.: 819-822 (1995) 10.1130/0091-7613(1995)​023<0819:SRATRD>​2.3.CO;2