Mark W. Shephard

Sitwell, M., Shephard, M.W., Rochon Y., Cady-Pereira K., and Dammers E., An Ensemble-Variational Inversion System for the Estimation of Ammonia Emissions using CrIS Satellite Ammonia Retrievals, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2021-549, in review ACP, 2022. 

Shephard M. W., E. Dammers, K. E. Cady-Pereira, S. K. Kharol, J. Thompson, Y. Gainariu-Matz, J. Zhang, C. A. McLinden, A. Kovachik, M. Moran, S. Bittman, C. Sioris, D. Griffin, M. J. Alvarado, C. Lonsdale, V. Savic-Jovcic, and Q. Zheng, Ammonia measurements from space with the Cross-track Infrared Sounder (CrIS): characteristics and applications, Atmos. Chem. Phys., 20, 2277–2302, https://doi.org/10.5194/acp-20-2277-2020, 2020.

Adams, C. C. A. McLinden, M. W. Shephard, N. Dickson, E. Dammers, J. Chen, P. Makar, K. E. Cady-Pereira, N. Tam, S. K. Kharol, L. N. Lamsal, and N. A. Krotkov.  Satellite-derived emissions of carbon monoxide, ammonia, and nitrogen dioxide from the 2016 Horse River wildfire in the Fort McMurray area, Atmos. Chem. Phys., 19, 2577-2599, https://doi.org/10.5194/acp-19-2577-2019, 2019.

Dammers, E., C. McLinden, D. Griffin, M. W. Shephard, S. Van Der Graaf, E. Lutsch, M. Schaap, Y. Gainairu-Matz, V. E. Fioletov, M. Van Damme, S. Whitburn, L. Clarisse, K. E. Cady-Pereira,  C. Clerbaux, P. F. Coheur, and J. Willem Erisman, NH3 emissions from large point sources derived from CrIS and IASI satellite observations, Atmos. Chem. Phys., 19, 12261–12293, https://doi.org/10.5194/acp-19-12261-2019, 2019.

Kharol, S. K., M. W. Shephard, C. A. McLinden, L. Zhang, C. E. Sioris, J. M. O’Brien,  R. Vet, K. E. Cady-Pereira, E. Hare, J. Siemons, and N. A. Krotkov,  Dry deposition of reactive nitrogen from satellite observations of ammonia and nitrogen dioxide over North America, Geophysical Research. Letters, 45, 1157-1166, https://doi.org/10.1002/2017GL075832, 2018.

McLinden, C. A , V. Fioletov, M. W. Shephard, N. Krotkov, C. Li, R. V. Martin, M. D. Moran, and J. Joiner, Space-based detection of new sources of global air pollution, Nature Geoscience, DOI: 10.1038/NGEO2724, 2016.

Shephard, M.W. and K.E. Cady-Pereira, Cross-track Infrared Sounder (CrIS) Satellite Observations of Tropospheric Ammonia,  Atmos. Meas. Tech., 8, 1323–1336, doi:10.5194/amt-8-1323-2015, 2015.

Shephard, M.W, C. A. McLinden, K. E. Cady-Pereira, M. Luo, S. G. Moussa, A. Leithead, J. Liggio, R. M. Staebler, A. Akingunola, P. Makar, P. Lehr, J. Zhang, D. K. Henze, D. B. Millet, J. O. Bash, L. Zhu, K. C. Wells, S. L. Capps, S. Chaliyakunnel, M. Gordon, K. Hayden, J. R. Brook, M. Wolde, and S.-M. Li, Tropospheric Emission Spectrometer (TES) satellite validations observations of ammonia, methanol, formic acid, and carbon monoxide over the Canadian oil sands: validation and model evaluation, Atmos. Meas. Tech., 8, 5189–5211, doi:10.5194/amt-8-5189-2015, 2015.

Shephard M.W., R. Morris, W. R. Burrows, and L. Welsh, A High-ResolutionCanadian Lightning Climatology, Atmosphere-Ocean, 51:1, 50-59, doi:10.1080/07055900.2012.755946, 2013.

Shephard M.W., K. E. Cady-Pereira, M. Luo, D. K. Henze, R. W. Pinder, et. al., TES Ammonia Retrieval Strategy and Global Observations of the Spatial and Seasonal Variability of Ammonia, Atmos. Chem. Phys., 11, 10743-10763, doi:10.5194/acp-11-10743-2011, 2011.

Paixao E., H. Auld, M. Mirza, J. Klaassen, M. W. Shephard, Regionalization of heavy rainfalls to improve climatic design values for infrastructure: Case study in South-Central Ontario, Canada, Hydrological Sciences Journal, 56:7, 1067-1089, doi:10.1080/02626667.2011.608069, 2011.

Shephard M.W., S.A. Clough, V.H. Payne, W. L. Smith, S. Kireev, and K. E. Cady-Pereira, Performance of the line-by-line radiative transfer model (LBLRTM) for temperature and species retrievals: IASI case studies from JAIVEx, Atmos. Chem. Phys., 9, 7397-7417, 2009.

Payne, V. H., S. A. Clough, M. W. Shephard, R. Nassar, and J. A. Logan, Information-centered representation of retrievals with limited degrees of freedom for signal: Application to methane from the Tropospheric Emission Spectrometer, J Geophys Res., doi:10.1029/2008JD010155, 2009.

Shephard M.W., H. M. Worden, K. E. Cady-Pereira, et. al., Tropospheric Emission Spectrometer Spectral Radiance Comparisons, J Geophys Res., 113, D15S05, doi:10.1029/2007JD008856, 2008.

Beer, R., M. W. Shephard, S. S. Kulawik, S. A. Clough, A. Eldering, K. W. Bowman, et. al., First satellite observations of lower tropospheric ammonia & methanol, Geophysical Res. Letters, 35, L09801, doi:10.1029/2008GL033642, 2008.

Iacono M. J., J. S. Delamere, E. J. Mlawer, M. W. Shephard, S. A. Clough, and W. Collins, Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models, J. Geophys. Res., 113, D13103, doi:10.1029/2008JD009944, 2008.

Worden, J., D. Noone, K. Bowman, R. Beer, A. Eldering, B. Fisher, M. Gunson, A. Goldman, R. Herman, S. S. Kulawik, M. Lampel, G. Osterman, C. Rinsland, S. Sander, M.W. Shephard, C. Webster, and H. Worden. The global hydrologic cycle seen with water isotope measurements from space, Nature, 445, 528-532, 2007.

Clough S.A., Shephard M.W., Worden J., Brown P.D., Worden H.M., Luo M., Rodgers C.D., et. al., Forward Model and Jacobians for Tropospheric Emission Spectrometer Retrievals. IEEE Trans. Geosci. Remote Sens., 44, 1308-1323, 2006.

Bowman K, C.D. Rodgers, S. Sund-Kulawik, J. Worden, E. Sarkissian, G. Osterman, T. Steck, M. Luo, A. Eldering, M.W. Shephard, H. Worden, S.A. Clough, P.D. Brown, C.P. Rinsland, M. Lampe, M. Gunson, R. Beer, Tropospheric Emission Spectrometer: Retrieval Method and Error Analysis. IEEE Trans. Geosci. Remote Sens., 44, 1352-1358, 2006.

Clough S.A, Shephard M.W, Mlawer E.J, Delamere J.S, Iacono M.J, Cady-Pereira K.E, Boukabara S, Brown P.D. Atmospheric Radiative Transfer Modeling: a Summary of the AER Codes. J Quant Spectrosc Radiat Transfer, 91, 233-244, 2005.

Shephard M.W. and E.J. Kennelly. Effect of Band-to-Band Coregistration on Fire Retrievals. IEEE Trans. Geosci. Remote Sens., 41, pp. 2648-2661, 2003.