T
Todd Sowers
Researcher at Pennsylvania State University
Publications - 75
Citations - 12410
Todd Sowers is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Ice core & Glacial period. The author has an hindex of 45, co-authored 74 publications receiving 11454 citations. Previous affiliations of Todd Sowers include Lamont–Doherty Earth Observatory & University of Rhode Island.
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Elemental and isotopic composition of occluded O2 and N2 in polar ice
TL;DR: In this paper, a procedure has been developed to measure the relative concentrations of N2, O2, Ar, the δ18O of O2 and N2 trapped in Antarctic and Greenland ice cores.
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Late Quaternary atmospheric CH4 isotope record suggests marine clathrates are stable.
TL;DR: Analyses of air trapped in the ice from the second Greenland ice sheet project show stable and/or decreasing δDCH4 values during the end of the Younger and Older Dryas periods and one stadial period, suggesting that marine clathrates were stable during these abrupt warming episodes.
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δ15N of N2 in air trapped in polar ice: A tracer of gas transport in the firn and a possible constraint on ice age-gas age differences
TL;DR: In this paper, the authors used the barometric equation to calculate the thickness of the diffusive air column, and found that it comprised 46 to 93% of the total firn thickness at their study sites.
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The WAIS Divide deep ice core WD2014 chronology - Part 2: Annual-layer counting (0-31 ka BP)
Michael Sigl,Michael Sigl,Tyler J. Fudge,Mai Winstrup,Jihong Cole-Dai,David G. Ferris,Joseph R. McConnell,Ken C. Taylor,Kees C. Welten,Thomas E. Woodruff,Florian Adolphi,M. M. Bisiaux,Edward J. Brook,Christo Buizert,Marc W. Caffee,Nelia W. Dunbar,Ross Edwards,Ross Edwards,Lei Geng,Nels Iverson,B. G. Koffman,Lawrence Layman,Olivia J. Maselli,Kenneth C. McGwire,Raimund Muscheler,Kunihiko Nishiizumi,Daniel R. Pasteris,Rachael H. Rhodes,Todd Sowers +28 more
TL;DR: This article presented the WD2014 chronology for the upper part of the West Antarctic Ice Sheet (WAIS) Divide (WD) ice core, which is based on counting of annual layers observed in the chemical, dust and electrical conductivity records.
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Climatic interpretation of the recently extended Vostok ice records
Jean Jouzel,Claire Waelbroeck,B. Malaize,Michael L. Bender,Jean-Robert Petit,Michel Stievenard,Nartsiss I. Barkov,J. M. Barnola,T. King,V. M. Kotlyakov,Vladimir Ya. Lipenkov,C. Lorius,D. Raynaud,Catherine Ritz,Todd Sowers +14 more
TL;DR: A new ice core from the Russian station of Vostok in Antarctica reached 2755 m depth in September 1993 and was estimated to have an age of 260 ky BP (±25) as mentioned in this paper.