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Peter J.
DiFiore Department of Geosciences
Phone: (609) 258-7544 Advisor: Daniel M. Sigman |
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Publications
Refereed Papers
1. Robinson, R.S., D.M. Sigman, P. J. DiFiore, M.M. Rohde, T.A. Mashiotta, D. W. Lea (2005), Diatom-bound 15N/14N: New support for enhanced nutrient consumption in the ice age Subantarctic, Paleoceanography, 20, PA3003, doi:10.1029/2004PA001114. (abstract)
2. Sigman, D. M., J. Granger, P. J. DiFiore, M. M. Lehmann, R. Ho, G. Cane, and A. van Geen (2005), Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin, Global Biogeochem. Cycles, 19, GB4022, doi:10.1029/2005GB002458. (abstract)
3. DiFiore, P. J., D. M. Sigman, T. W. Trull, A. J. Lourey, and K. L. Karsh, Nitrogen isotope constraints on Subantarctic biogeochemistry, Journal of Geophysical Research – Oceans, 111, C8, C08016, doi:10.1029/2005JC003216, 2006.
in prep - with D.M. Sigman and R. Dunbar - Nitrification and N uptake in the Antarctic mixed layer
- with D.M. Sigman and M. Hain - Controls on the oxygen isotope distribution of nitrate in the ocean interior
- with A.N. Knapp, D.M. Sigman, C.A. Deutsch, and F. Lipschultz - Nitrate isotopic composition between Bermuda and Puerto Rico: Implications for N2 fixation in the Sargasso Sea. Submitted to Global Biogeochemical Cycles.
Conference presentations:
1. DiFiore, P. J., D.M. Sigman, T. W. Trull, M. J. Lourey, K. Karsh (2005). Constraints on Subantarctic biogeochemistry from nitrate isotopes. Poster presented at Significant Processes, Observations, and Transformations in Oceanic Nitrogen (SPOT-ON), Warnemünde, Germany, 26 June to 1 July, 2005.
2. DiFiore, P. J., D.M. Sigman, T. W. Trull, M. J. Lourey, K. Karsh (2005). Nitrogen isotope constraints on Subantarctic biogeochemistry. Talk & Poster presented at International Summer School on Surface Ocean-Lower Atmosphere Study, Cargèse, France, 29 August to 9 September, 2005.
3. DiFiore, P. J., D.M. Sigman, T. W. Trull, M. J. Lourey, K. Karsh (2006). Nutrient Supply and Uptake in the Subantarctic Mixed Layer: Constraints From the Isotopes of Nitrate, Eos Trans. AGU, 87(36), Ocean Sci. Meet. Suppl., Abstract OS24G-01. Feb 21, 2006. (abstract)
4. van der Vink, G., DiFiore, P. J., and the Spring 2006 Princeton University GEO 499 class (2007). Democracy, GDP, and the Impact of Natural Disasters, Eos Trans. AGU, 88(23), Jt. Assem. Suppl., Abstract U32B-07. May 23, 2007 in Acapulco, MX. (abstract)
Media
van der Vink, G., DiFiore, P. J., and the Spring 2006 Princeton University GEO 499 class (2007). Democracy, GDP, and Natural Disasters, Geotimes Magazine, 52(10) - October 2007. (weblink) "Natural disasters are up, but deaths in them are down", by Frank Greve - McClatchy Newspapers, October 10, 2007. (weblink) Miami Herald here in Spanish here |
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