Mark is the Director of Corporate and Community Relations, responsible for initiating and managing BIOS’s relationships with Bermuda-based individuals and organizations interested in supporting BIOS’s activities. As a senior member of the Development, Marketing, and Communications team, Mark is in charge of the local effort to promote BIOS’s scientific and educational programs. Mark also leads the strategic development of the Risk Prediction Initiative, retaining his responsibilities for the overall program.

Prior to joining the Development Team in August 2015, Mark was Program Manager of the Risk Prediction Initiative (RPI) at BIOS, with responsibilities for supervision of all RPI activities. Mark is a qualified meteorologist, with 15 years’ experience in the Bermuda Weather Service, and was its Director from 2006-2012. His research into Atlantic hurricanes and subtropical storms led him to obtain a PhD in Meteorology from Penn State University, following a Master’s degree from the University of East Anglia. Mark has experience as an operational forecaster with training from the UK Met Office and the US National Hurricane Center. He has served on intergovernmental committees focusing on warning and mitigation of natural hazards, and has also worked as a reinsurance analyst and catastrophe risk modeler. He also served as an adjunct faculty member of BIOS 2009-2012.

Selected Publications:
Emanuel, K., P. Caroff, S. Delgado, C. Guard, M. Guishard, C. Hennon, J. Knaff, K.R. Knapp, J. Kossin, C. Schreck, C. Velden, and J. Vigh. (2018) Desirability and Feasibility of a Global Reanalysis of Tropical Cyclones. Bulletin of the American Meteorological Society https://doi.org/10.1175/BAMS-D-17-0226.1.

Johnston, M. C., Guishard, M. P., Peñate, I. and Currie, I. D. (2018) Flooding threshold rainfall events in Bermuda. Weather 99(99). doi:10.1002/wea.3096

Lavender, S.L., K.J.E. Walsh, L-P. Caron, M. King, S. Monkiewicz, M. Guishard, Q. Zhang, and B. Hunt (2018) Estimation of the maximum annual number of North Atlantic tropical cyclones using climate models. Science Advances 4 doi: 10.1126/sciadv.aat6509

Hart, R.E, Chavas, D.R., and Guishard, M.P (2016) The Arbitrary Definition of the Current Atlantic Major Hurricane Landfall Drought. Bull. Amer. Meteor. Soc. 97: 713–722, doi: 10.1175/BAMS-D-15-00185.1.

Elsner, J., and Guishard, M.P. (2014) Understanding How Climate Change Could Affect Tornadoes - First International Summit on Tornadoes and Climate Change; Crete, Greece, 25–30 May 2014. Eos 95(45).

Steen-Larsen, H. C., Sveinbjörnsdottir, A. E., Peters, A. J., Masson-Delmotte, V., Guishard, M. P., Hsiao, G., Jouzel, J., Noone, D., Warren, J. K., and White, J. W. C. (2014) Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements, Atmos. Chem. Phys.14:7741-7756, doi:10.5194/acp-14-7741-2014

Evans, J.L., and Guishard, M.P. (2009) Atlantic Subtropical Storms. Part I: Diagnostic Criteria and Composite Analysis. Monthly Weather Review 137:2065– 2080, DOI: 10.1175/2009MWR2468.1

Guishard, M.P., Evans, J.L., and Hart, R.E. (2009) Atlantic Subtropical Storms. Part II: Climatology. Journal of Climate 22: 3574–3594. DOI: 10.1175/2008JCLI2346.1.

Guishard, M.P., Nelson, E.A., Evans, J.L., Hart, R.E., and O'Connell, D.G. (2007) Bermuda subtropical storms. Meterol Atmos Phys 97(1): 239-253.