Prof. Timothy Merlis

Timothy Merlis

Atmospheric and Climate Dynamics

Office: Burnside Hall 815
Tel.: (514) 398-3140
Fax.: (514) 398-6115
timothy.merlis [at] mcgill.ca (E-Mail)
Website


Research interests

We research atmospheric circulations and their role in climate changes.

Our goal is to elucidate physical mechanisms underlying the response of atmospheric circulations, surface temperature and precipitation, and tropical cyclones to changes in radiative forcing. Systematic experimentation with numerical climate models allows us to develop climate theories that encompass not only Earth's current and future climate, but also the broader range of possible climates. A few illustrative examples of this research are described here.

Recent Publications

Galbraith, E. D., T. M. Merlis, and J. Palter, 2016: Destabilization of glacial climate by the radiative impact of Atlantic Meridional Overturning Circulation disruptions. Geophysical Research Letters, 43, 8214-8221, doi:10.1002/2016GL069846. 

Yang, J., J. Leconte, E. T. Wolf, C. Goldblatt, N. Feldl, T. M. Merlis, Y. Wang, D. D. B. Koll, F. Ding, F. Forget, and D. S. Abbot, 2016: Differences in water vapor radiative transfer among 1D models can significantly affect the inner edge of the habitable zone. The Astrophysical Journal, 826, doi:10.3847/0004-637X/826/2/222. 

Trossman, D., J. Palter, T. M. Merlis, Y. Huang, and Y. Xia, 2016: Large-scale ocean circulation-cloud interactions reduce the pace of transient climate change. Geophysical Research Letters, 43, 3935-3943, doi:10.1002/2016GL067931. 

Merlis, T. M., W. Zhou, I. M. Held, and M. Zhao, 2016: Surface temperature dependence of tropical cyclone-permitting simulations in a spherical model with uniform thermal forcing. Geophysical Research Letters, 43, 2859-2865, doi:10.1002/2016GL067730. 

Merlis, T. M., 2016: Does humidity's seasonal cycle affect the annual-mean tropical precipitation response to sulfate aerosol forcing? Journal of Climate, 29, 1451-1460. 

Merlis, T. M., M. Zhao, and I. M. Held, 2013: The sensitivity of hurricane frequency to ITCZ changes and radiatively forced warming in aquaplanet simulations. Geophysical Research Letters, DOI: 10.1002/grl.50680.

Merlis, T. M., T. Schneider, S. Bordoni, and I. Eisenman, 2013: The tropical precipitation response to orbital precession. Journal of Climate, 26, 2010-2021.

Merlis, T. M. and T. Schneider, 2011: Changes in zonal surface temperature gradients and Walker circulations in a wide range of climates. Journal of Climate, 24, 4757-4768.

Merlis, T. M. and T. Schneider, 2010: Atmospheric dynamics of Earth-like tidally locked aquaplanets. Journal of Advances in Modeling Earth Systems, 2, Art. #13.