Sylvia Englund Michel

Sylvia Englund Michel

Assistant Laboratory Manager

  • Senior Professional Research Assistant

Education

  • MS: University of Utah, 2004
  • BA: Williams College, 1999

Contact Information

(Office) 303 735-5850

Specialty

Technical expert in stable isotope mass spectrometry, including dual inlet and continuous flow techniques. Proficient with IDL coding language for data processing and management.

Research Interests

I lead the SIL team that measures stable isotopes of carbon dioxide and methane from NOAA Global Monitoring Laboratory’s Global Greenhouse Gas Reference Network. In addition to running, maintaining, and troubleshooting a fleet of isotope ratio mass spectrometers, I am also responsible for quality control, calibrations, and uncertainty quantifcation of these samples. I work with international colleagues to establish and maintain good metrological practice for stable isotope measurement of greenhouse gases. Ultimately, our measurements are useful for understanding sources and sinks of carbon dioxide and methane.

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Research

Publications

FeaturedPublications

Paul, D., Scheeren, H. A., Jansen, H. G., Kers, B. A. M., Miller, J. B., Crotwell, A. M., Sylvia Englund Michel, Gatti, L. V., Domingues, L. G., Correia, C. S. C., Neves, R. A. L., Meijer, H. A. J., Peters, W. 2020: Evaluation of a field-deployable Nafion (TM)-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO2. Atmospheric Measurement Techniques, 13(7): 4051-4064. DOI: 10.5194/amt-13-4051-2020

Strode, S. A., Wang, J. S., Manyin, M., Duncan, B., Hossaini, R., Keller, C. A., Sylvia Englund MichelJames W. C. White 2020: Strong sensitivity of the isotopic composition of methane to the plausible range of tropospheric chlorine. Atmospheric Chemistry and Physics, 20(14): 8405-8419. DOI: 10.5194/acp-20-8405-2020

Hu, L., Andrews, A. E., Thoning, K. W., Sweeney, C., Miller, J. B., Michalak, A. M., Dlugokencky, E., Tans, P. P., Shiga, Y. P., Mountain, M., Nehrkorn, T., Montzka, S. A., McKain, K., Kofler, J., Trudeau, M., Sylvia Englund Michel, Biraud, S. C., Fischer, M. L., Worthy, D. E. J., Bruce H. VaughnJames W. C. White, Yadav, V., Basu, S., van der Velde, I. R. 2019: Enhanced North American carbon uptake associated with El Niño. Science Advances, 5(6): eaaw0076. DOI: 10.1126/sciadv.aaw0076

Nisbet, E. G., Manning, M. R., Dlugokencky, E. J., Fisher, R. E., Lowry, D., Sylvia Englund Michel, Lund Myhre, C., Platt, S. M., Allen, G., Bousquet, P., Brownlow, R., Cain, M., France, J. L., Hermansen, O., Hossaini, R., Jones, A. E., Levin, I., Manning, A. C., Myhre, G., Pyle, J. A., Bruce H. Vaughn, Warwick, N. J., James W. C. White 2019: Very strong atmospheric methane growth in the 4 years 2014–2017: Implications for the Paris Agreement. Global Biogeochemical Cycles, 33(3): 318-342. DOI: 10.1029/2018GB006009

Umezawa, T., Brenninkmeijer, C. A. M., Röckmann, T., van der Veen, C., Tyler, S. C., Fujita, R., Morimoto, S., Aoki, S., Sowers, T., Schmitt, J., Bock, M., Beck, J., Fischer, H., Sylvia Englund MichelBruce H. Vaughn, Miller, J. B., James W. C. White, Brailsford, G., Schaefer, H., Sperlich, P., Brand, W. A., Rothe, M., Blunier, T., Lowry, D., Fisher, R. E., Nisbet, E. G., Rice, A. L., Bergamaschi, P., Veidt, C., Levin, I. 2018: Interlaboratory comparison of δ13C and δD measurements of atmospheric CH4 for combined use of data sets from different laboratories. Atmospheric Measurement Techniques, 11(2): 1207-1231. DOI: 10.5194/amt-11-1207-2018

Schaefer, H., Smale, D., Nichol, S. E., Bromley, T. M., Brailsford, G. W., Martin, R. J., Moss, R., Sylvia Englund MichelJames W. C. White 2018: Limited impact of El Niño-Southern Oscillation on variability and growth rate of atmospheric methane. Biogeosciences, 15(21): 6371-6386. DOI: 10.5194/bg-15-6371-2018

Schaefer, H., Fletcher, S. E. M., Veidt, C., Lassey, K. R., Brailsford, G. W., Bromley, T. M., Dlugokencky, E. J., Sylvia Englund Michel, Miller, J. B., Levin, I., Lowe, D. C., Martin, R. J., Bruce H. VaughnJames W. C. White 2016: A 21st-century shift from fossil-fuel to biogenic methane emissions indicated by 13CH4. Science, 352(6281): 80-84. DOI: 10.1126/science.aad2705

Nisbet, E. G., Dlugokencky, E. J., Manning, M. R., Lowry, D., Fisher, R. E., France, J. L., Sylvia Englund Michel, Miller, J. B., James W. C. WhiteBruce H. Vaughn, Bousquet, P., Pyle, J. A., Warwick, N. J., Cain, M., Brownlow, R., Zazzeri, G., Lanoisellé, Manning, A. C., Gloor, E., Worthy, D. E. J., Brunke, E.-G., Labuschagne, C., Wolff, E. W., Ganesan, A. L. 2016: Rising atmospheric methane: 2007-2014 growth and isotopic shift. Global Biogeochemical Cycles, 30(9): 1356-1370. DOI: 10.1002/2016GB005406

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