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Pratigya J. Polissar
Researcher at University of California, Santa Cruz
Publications - 79
Citations - 3794
Pratigya J. Polissar is an academic researcher from University of California, Santa Cruz. The author has contributed to research in topics: Holocene & Glacial period. The author has an hindex of 30, co-authored 72 publications receiving 2986 citations. Previous affiliations of Pratigya J. Polissar include Hampshire College & Lamont–Doherty Earth Observatory.
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Journal ArticleDOI
Molecular Paleohydrology: Interpreting the Hydrogen-Isotopic Composition of Lipid Biomarkers from Photosynthesizing Organisms
Dirk Sachse,Isabelle Billault,Gabriel J. Bowen,Yoshito Chikaraishi,Todd E. Dawson,Sarah J. Feakins,Katherine H. Freeman,Clayton R. Magill,Francesca A. McInerney,Marcel T J van der Meer,Pratigya J. Polissar,Richard J. Robins,Julian P. Sachs,Hanns Ludwig Schmidt,Alex L. Sessions,James W. C. White,Jason B. West,Ansgar Kahmen +17 more
TL;DR: In this paper, the authors review the factors and processes that are known to influence the hydrogen-isotopic compositions of lipids from photosynthesizing organisms, and provide a framework for interpreting their D/H ratios from ancient sediments and identify future research opportunities.
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Paleoaltimetry of the Tibetan Plateau from D/H ratios of lipid biomarkers
Pratigya J. Polissar,Katherine H. Freeman,David B. Rowley,Francesca A. McInerney,Brian S. Currie +4 more
TL;DR: This article measured the hydrogen isotope composition of n -alkanes from epicuticular plant waxes preserved in lacustrine deposits to reconstruct the δ D of precipitation in Cenozoic basins that have been elevated as part of the Tibetan Plateau.
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Holocene paleohydrology and glacial history of the central Andes using multiproxy lake sediment studies
Mark B. Abbott,Brent B. Wolfe,Alexander P. Wolfe,Geoffrey O. Seltzer,Ramon Aravena,Brian G Mark,Pratigya J. Polissar,Donald T. Rodbell,Harry Rowe,Mathias Vuille +9 more
TL;DR: Abbott et al. as mentioned in this paper studied the regional changes of precipitation and evaporation from the late Pleistocene to the present with multiproxy methods on a north-south transect of lake sites across the eastern cordillera of the central Andes.
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Northward extent of East Asian monsoon covaries with intensity on orbital and millennial timescales.
Yonaton Goldsmith,Wallace S. Broecker,Hai Xu,Pratigya J. Polissar,Peter B deMenocal,Naomi Porat,Jianghu Lan,Peng Cheng,Weijian Zhou,Zhisheng An +9 more
TL;DR: A rainfall reconstruction based on the surface area of a closed-basin lake located at the modern northwestern boundary of the EAM indicates that EAM intensity and the northward extent covary on orbital and millennial timescales.
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Effects of aridity and vegetation on plant-wax δD in modern lake sediments
TL;DR: The authors analyzed the deuterium composition of individual plant-waxes in lake sediments from 28 watersheds that span a range of precipitation D/H, vegetation types and climates.