Angela N. Knapp

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Publications

• Jacquot, J.E., Y. Kondo, A.N. Knapp, and J.W. Moffett, The speciation of copper across active gradients in nitrogen-cycle processes in the eastern tropical South Pacific, In Press at Limnology & Oceanography
• Letscher, R.T., D.A. Hansell, C.A. Carlson, R. Lumpkin, and A.N. Knapp, 2013, *Dissolved organic nitrogen in the global surface ocean: Distribution and fate, Global Biogeochem. Cycles, 27, doi/10.1029/2012GB004449/

*See associated Nature "News and Views" article by Voss and Heitanen

• Knapp, A.N., 2012, The sensitivity of marine N2 fixation to dissolved inorganic nitrogen, Frontiers in Microbiology, 3:374. doi: 10.3389/fmicb.2012.00374
• Knapp, A.N., J. Dekaezemacker, S. Bonnet, J.A. Sohm, and D.G. Capone, 2012, Sensitivity of Trichodesmium and Crocosphaera abundance and N2 fixation rates to varying NO3- and PO43- concentrations in batch cultures, Aquatic Microbial Ecology, 66, 223-236, doi:10.3354/ame01577
• Knapp, A.N., D.M. Sigman, A.B. Kustka, S.A. Sanudo-Wilhelmy, and D.G. Capone, 2012, The distinct nitrogen isotopic compositions of low and high molecular weight DON, Marine Chemistry, 136-137, 24-33, doi:10.1016/j.marchem.2012.05.001
• Knapp, A.N., D.M. Sigman, F. Lipschultz, A.B. Kustka, and D.G. Capone, 2011, Interbasin isotopic correspondence between upper-ocean bulk DON and subsurface nitrate and its implications for marine nitrogen cycling, Global Biogeochemical Cycles, 25, GB4004, doi:10.1029/2010GB003878
• Collins, L.E., W. Berelson, D.E. Hammond, A. Knapp, R. Schwartz, and D. Capone, 2011, Particle fluxes in San Pedro Basin, California: A four-year record of sedimentation and physical forcing, Deep-Sea Research I, 58, 898-914.
• Knapp, A.N., M.G. Hastings, D.M. Sigman, F. Lipschultz and J.N. Galloway, 2010, The flux and isotopic composition of reduced and total nitrogen in Bermuda rain, Marine Chemistry, 120, 83-89, doi:10.1016/j.marchem.2008.08.007 (Published online in final form in 2008)
• Spencer, P.K., and A.N. Knapp, 2010, Sedimentology, New stratigraphic markers in the late Pleistocene Palouse loess: novel fossil gastropods, absolute age constraints, and non-eolian facies, 57, 41-52,doi:10.1111/j.1365-3091.2009.01085.x
• Sigman, D.M., P.J. DiFiore, M.P. Hain, C. Deutsch, Y. Wang, D.M. Karl, A.N. Knapp, M.F. Lehmann, and S. Pantoja, 2009, The dual isotopes of deep nitrate as a constraint on the cycle and budget of oceanic fixed nitrogen. Deep-Sea Res. I, 56, 1419-1439, doi:10.1016/j.dsr.2009.04.007
• Knapp, A.N., P.J. DiFiore, C. Deutsch, D.M. Sigman, and F. Lipschultz, 2008, Nitrate isotopic composition between Bermuda and Puerto Rico Implications for N2 fixation in the Atlantic Ocean, Global Biogeochem. Cycles, 22, GB3014.

• Capone, D.G., and A.N. Knapp, 2007, A marine nitrogen cycle fix?, Nature, 445, 159-160

• Knapp, A.N., D.M. Sigman, and F. Lipschultz, 2005, N isotopic composition of dissolved organic nitrogen and nitrate at the Bermuda Atlantic Time-series Study site, Global Biogeochem. Cycles, 19, GB1018, doi:10.1029/2004GB002320

• Sigman, D.M., R. Robinson, A.N. Knapp, A. van Geen, D.C. McCorkle, J.A. Brandes, and R.C. Thunell, 2003, Distinguishing between water column and sedimentary denitrification in the Santa Barbara Basin using the stable isotopes of nitrate, Geochem., Geophys., Geosyst., 4, 1040, doi:10.1029/2002GC000394, 2003.

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