In my research, I use a variety of analytical chemistry techniques to investigate pressing questions about oceanic and terrestrial carbon cycling, particularly the interplay of carbon reservoirs, greenhouse gases, and modern climate change.
Publications
Sparrow, K. J., J. P. Chanton, U. M. Hanke, M. D. Kurz, and A. P. McNichol. “Peatland organic matter quality varies with latitude as confirmed from FTIR and Ramped Pyrolysis Oxidation.” In preparation for PLOS ONE.
Wilson, S. T., A. N. Al-Haj, A. Bourbonnais, ... K. J. Sparrow, et al. (2020). “Ideas and perspectives: A strategic assessment of methane and nitrous oxide measurements in the marine environment.” Biogeosciences, https://doi.org/10.5194/bg-17-5809-2020
Joung, D., M. Leonte, D. L. Valentine, K. J. Sparrow, T. Weber, and J. D. Kessler (2020). “Radiocarbon in marine methane reveals patchy impact of seeps on surface waters.” Geophysical Research Letters, https://doi.org/10.1029/2020GL089516
Sparrow, K. J., J. P. Chanton, R. Green, C. Scheutz, G. Hater, T. Abichou, and L. C. Wilson (2019). “Stable isotopic determination of methane oxidation: when smaller scales are better.” Waste Management, https://doi.org/10.1016/j.wasman.2019.07.032
Sparrow, K. J., and J. D. Kessler (2018). “Comment on ‘The origin of methane in the East Siberian Arctic Shelf unraveled with triple isotope analysis,’ by Sapart et al. 2017.” Biogeosciences, https://doi.org/10.5194/bg-15-4777-2018
Sparrow, K. J., J. D. Kessler, J. R. Southon, F. Garcia-Tigreros, K. M. Schreiner, C. D. Ruppel, et al. (2018). “Limited contribution of ancient methane to surface waters of the U.S. Beaufort Sea shelf.” Science Advances, https://doi.org/10.1126/sciadv.aao4842
Sparrow, K. J. and J. D. Kessler (2017). “Efficient collection and preparation of methane from low concentration waters for natural abundance radiocarbon analysis.” Limnology & Oceanography: Methods, https://doi.org/10.1002/lom3.10184
Kodovska, F. G. T., K. J. Sparrow, S. A. Yvon-Lewis, A. Paytan, N. T. Dimova, A. L. Lecher, and J. D. Kessler (2016). “Dissolved methane and carbon dioxide fluxes in Subarctic and Arctic regions: Assessing measurement techniques and spatial gradients.” Earth and Planetary Science Letters, http://dx.doi.org/10.1016/j.epsl.2015.12.002
Dimova, N. T., A. Paytan, J. D. Kessler, K. J. Sparrow, F. G. T. Kodovska, A. L. Lecher, et al. (2015). “The current magnitude and mechanisms of groundwater discharge in the Arctic: Case study from Alaska.” Environmental Science and Technology, https://doi.org/10.1021/acs.est.5b02215
Lecher, A. L., J. D. Kessler, K. J. Sparrow, F. G. T. Kodovska, N. Dimova, J. Murray, et al. (2015). “Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sties.” Limnology and Oceanography, https://doi.org/10.1002/lno.10118
Paytan, A., A. L. Lecher, N. Dimova, K. J. Sparrow, F. G. T. Kodovska, J. Murray, S. Tulaczyk, and J. D. Kessler (2015). “Methane transport from the active layer to lakes in the Arctic using Toolik Lake, Alaska, as a case study.” Proceedings of the National Academy of Sciences, https://doi.org/10.1073/pnas.1417392112