Select Publications
Journal articles
, 2025, 'Deep Ocean Ventilation: A Comparison Between a General Circulation Model and Data-Constrained Inverse Models', Journal of Advances in Modeling Earth Systems, 17, http://dx.doi.org/10.1029/2024MS004914
, 2024, 'The biological and preformed carbon pumps in perpetually slower and warmer oceans', Biogeosciences, 21, pp. 3373 - 3400, http://dx.doi.org/10.5194/bg-21-3373-2024
, 2024, 'Atmospheric pCO
, 2024, 'Biogeochemical Fluxes of Nickel in the Global Oceans Inferred From a Diagnostic Model', Global Biogeochemical Cycles, 38, http://dx.doi.org/10.1029/2023GB008018
, 2024, 'Deoxygenation and Its Drivers Analyzed in Steady State for Perpetually Slower and Warmer Oceans', Journal of Geophysical Research: Oceans, 129, http://dx.doi.org/10.1029/2024jc021043
, 2023, 'Respiration Patterns in the Dark Ocean', Global Biogeochemical Cycles, 37, http://dx.doi.org/10.1029/2023GB007747
, 2023, 'Optimal parameters for the ocean's nutrient, carbon, and oxygen cycles compensate for circulation biases but replumb the biological pump', Biogeosciences, 20, pp. 2985 - 3009, http://dx.doi.org/10.5194/bg-20-2985-2023
, 2023, 'Poleward Shift in the Southern Hemisphere Westerly Winds Synchronous With the Deglacial Rise in CO2', Paleoceanography and Paleoclimatology, 38, http://dx.doi.org/10.1029/2023PA004666
, 2022, 'The biogeochemical balance of oceanic nickel cycling', Nature Geoscience, 15, pp. 906 - 912, http://dx.doi.org/10.1038/s41561-022-01045-7
, 2022, 'Source-Labeled Anthropogenic Carbon Reveals a Large Shift of Preindustrial Carbon From the Ocean to the Atmosphere', Global Biogeochemical Cycles, 36, http://dx.doi.org/10.1029/2022GB007405
, 2022, 'The Fate of Oxygen in the Ocean and Its Sensitivity to Local Changes in Biological Production', Journal of Geophysical Research Oceans, 127, http://dx.doi.org/10.1029/2022JC018802
, 2022, 'Estimating Three-Dimensional Carbon-To-Phosphorus Stoichiometry of Exported Marine Organic Matter', Global Biogeochemical Cycles, 36, http://dx.doi.org/10.1029/2021GB007154
, 2021, 'Diffusion controls the ventilation of a Pacific Shadow Zone above abyssal overturning', Nature Communications, 12, pp. 4348, http://dx.doi.org/10.1038/s41467-021-24648-x
, 2021, 'A New Metric of the Biological Carbon Pump: Number of Pump Passages and Its Control on Atmospheric pCO2', Global Biogeochemical Cycles, 35, http://dx.doi.org/10.1029/2020GB006863
, 2020, 'Climate-Driven Changes in the Ocean's Ventilation Pathways and Time Scales Diagnosed From Transport Matrices', Journal of Geophysical Research Oceans, 125, http://dx.doi.org/10.1029/2020JC016414
, 2020, 'AWESOME OCIM: A simple, flexible, and powerful tool for modeling elemental cycling in the oceans', Chemical Geology, 533, pp. 119403, http://dx.doi.org/10.1016/j.chemgeo.2019.119403
, 2019, 'Diatom Physiology Controls Silicic Acid Leakage in Response to Iron Fertilization', Global Biogeochemical Cycles, 33, pp. 1631 - 1653, http://dx.doi.org/10.1029/2019GB006460
, 2019, 'The ocean's global 39Ar distribution estimated with an ocean circulation inverse model', Geophys. Res. Lett., 46, pp. 7491 - 7499, http://dx.doi.org/10.1029/2019GL082663
, 2019, 'Transport matrices from standard ocean-model output and quantifying circulation response to climate change', Ocean Modelling, 135, pp. 1 - 13, http://dx.doi.org/10.1016/j.ocemod.2019.01.005
, 2019, 'Radiocarbon and Helium Isotope Constraints on Deep Ocean Ventilation and Mantle-3He Sources', Journal of Geophysical Research: Oceans, 124, pp. 3036 - 3057, http://dx.doi.org/10.1029/2018jc014716
, 2018, 'The number of past and future regenerations of iron in the ocean and its intrinsic fertilization efficiency', Biogeosciences, 15, pp. 7177 - 7203, http://dx.doi.org/10.5194/bg-15-7177-2018
, 2018, 'Iron fertilization efficiency and the number of past and future regenerations of iron in the ocean', , http://dx.doi.org/10.5194/bg-2018-379
, 2018, 'Ventilation of the Subtropical North Atlantic: Locations and Times of Last Ventilation Estimated Using Tracer Constraints From GEOTRACES Section GA03', Journal of Geophysical Research Oceans, 123, pp. 2332 - 2352, http://dx.doi.org/10.1002/2017JC013698
, 2018, 'Decoupling the Effects of Transport and Chemical Loss on Tropospheric Composition: A Model Study of Path-Dependent Lifetimes', Journal of Geophysical Research Atmospheres, 123, pp. 2320 - 2335, http://dx.doi.org/10.1002/2017JD027871
, 2017, 'Inverse-model estimates of the ocean’s coupled phosphorus, silicon, and iron cycles', Biogeosciences, 14, pp. 4125 - 4159, http://dx.doi.org/10.5194/bg-14-4125-2017
, 2017, 'Decadal changes in Southern Ocean ventilation inferred from deconvolutions of repeat hydrographies', Geophysical Research Letters, 44, pp. 5655 - 5664, http://dx.doi.org/10.1002/2017GL073788
, 2017, 'Inverse-model estimates of the ocean's coupled phosphorus, silicon, and iron cycles', , http://dx.doi.org/10.5194/bg-2017-122
, 2017, 'Recent increase in oceanic carbon uptake driven by weaker upper-ocean overturning', Nature, 542, pp. 215 - 218, http://dx.doi.org/10.1038/nature21068
, 2017, 'Objective estimates of mantle 3He in the ocean and implications for constraining the deep ocean circulation', Earth and Planetary Science Letters, 458, pp. 305 - 314, http://dx.doi.org/10.1016/j.epsl.2016.10.054
, 2016, 'The age of iron and iron source attribution in the ocean', Global Biogeochemical Cycles, 30, pp. 1454 - 1474, http://dx.doi.org/10.1002/2016GB005418
, 2016, 'The plumbing of the global biological pump: Efficiency control through leaks, pathways, and time scales', Journal of Geophysical Research Oceans, 121, pp. 6367 - 6388, http://dx.doi.org/10.1002/2016JC011821
, 2016, 'Constraints on the global marine iron cycle from a simple inverse model', Journal of Geophysical Research Biogeosciences, 121, pp. 28 - 51, http://dx.doi.org/10.1002/2015JG003111
, 2015, 'Interhemispheric transit time distributions and path-dependent lifetimes constrained by measurements of SF6, CFCs, and CFC replacements', Geophysical Research Letters, 42, pp. 4581 - 4589, http://dx.doi.org/10.1002/2015GL064172
, 2015, 'Analysis of the boundary value problem associated with the nonrelativistic Thomas-Fermi equation for heavy atoms in intense magnetic fields', Differential Equations and Applications, 7, pp. 27 - 41, http://dx.doi.org/10.7153/dea-07-03
, 2015, 'Air-mass origin in the arctic. Part II: Response to increases in greenhouse gases', Journal of Climate, 28, pp. 9105 - 9120, http://dx.doi.org/10.1175/JCLI-D-15-0296.1
, 2015, 'Airmass origin in the Arctic. Part I: Seasonality', Journal of Climate, 28, pp. 4997 - 5014, http://dx.doi.org/10.1175/JCLI-D-14-00720.1
, 2015, 'Controls on the silicon isotope distribution in the ocean: New diagnostics from a data-constrained model', Global Biogeochemical Cycles, 29, pp. 267 - 287, http://dx.doi.org/10.1002/2014GB004967
, 2014, 'Seasonal ventilation of the stratosphere: Robust diagnostics from one-way flux distributions', Journal of Geophysical Research, 119, pp. 293 - 306, http://dx.doi.org/10.1002/2013JD020213
, 2014, 'The Southern Ocean silicon trap: Data-constrained estimates of regenerated silicic acid, trapping efficiencies, and global transport paths', Journal of Geophysical Research Oceans, 119, pp. 313 - 331, http://dx.doi.org/10.1002/2013JC009356
, 2013, 'Lifetime dependent flux into the lowermost stratosphere for idealized trace gases of surface origin', Journal of Geophysical Research, 118, pp. 9367 - 9375, http://dx.doi.org/10.1002/jgrd.50657
, 2013, 'Air-mass origin as a diagnostic of tropospheric transport', Journal of Geophysical Research-Atmospheres, 118, pp. 1459 - 1470, http://dx.doi.org/10.1002/jgrd.50133
, 2013, 'Global teleconnections in the oceanic phosphorus cycle: Patterns, paths, and timescales', Journal of Geophysical Research, 118, pp. 1775 - 1796, http://dx.doi.org/10.1002/jgrc.20072
, 2013, 'Recent changes in the ventilation of the southern oceans', Science, 339, pp. 568 - 570, http://dx.doi.org/10.1126/science.1225411
, 2013, 'Southern Ocean nutrient trapping and the efficiency of the biological pump', Journal of Geophysical Research, 118, pp. 2547 - 2564, http://dx.doi.org/10.1002/jgrc.20181
, 2012, 'Flux distributions as robust diagnostics of stratosphere-toposphere exchange', Journal of Geophysical Research, 117, pp. Article number: D01302, http://dx.doi.org/10.1029/2011JD016455
, 2012, 'Stratospheric mean residence time and mean age on the tropopause: Connections and implications for observational constraints', Journal of Geophysical Research-Atmospheres, 117, pp. D12314 (8pp), http://dx.doi.org/10.1029/2012JD017547
, 2012, 'Ventilation of the deep ocean constrained with tracer observations and implications for radiocarbon estimates of ideal mean age', Earth and Planetary Science Letters, 325-326, pp. 116 - 125, http://dx.doi.org/10.1016/j.epsl.2012.01.038
, 2010, 'Improved constraints on transit time distribtions from argon 39: A maximum entropy approach', Journal of Geophysical Research, 115, pp. c12021(19pp), http://dx.doi.org/10.1029/2010JC006410
, 2010, 'Where and how long ago was water in the western North Atlantic ventilated? Maximum entropy inversions of bottle data from WOCE line A20', Journal of Geophysical Research, 115, http://dx.doi.org/10.1029/2009JC005750
, 2009, 'The path density of interhemispheric surface-to-surface transport. Part I: Development of the diagnostic and illustration with an analytic model', Journal of the Atmospheric Sciences, 66, pp. 2159 - 2171, http://dx.doi.org/10.1175/2009JAS2894.1