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Prof. Lawrence Mysak

Lawrence Mysak

Ocean, Climate and Paleoclimate Dynamics

Office: Burnside Hall 711
Tel.: (514) 398-3768
Fax.: (514) 398-6115
lawrence [dot] mysak [at] mcgill [dot] ca (E-mail)

Research interests

Professor Mysak is director of the Earth System Modelling Group which is part of the Department of Atmospheric and Oceanic Sciences. The main goal of the research in the ESMG is to develop and apply reduced complexity models of the Earth system (see publications below, Claussen et al., 2002) to better understand decadal and longer term climate variability and change. Analysis of climate data and data-model intercomparison studies are also important activities of the ESMG. Currently, the ESMG is working with four Earth system models, namely, the UVic Earth System Climate model version 2.6, the NCAR climate model, a reduced complexity model of the ocean-atmosphere-sea ice system under Milankovitch forcing, and a box model of the global carbon cycle.

Current projects

  • Project 1: Sea ice rheology: viscous-plastic vs. purely plastic models.
  • Project 2: Modelling the fresh water budget of the Arctic Ocean and exchanges with the North Atlantic: present and past.
  • Project 3: Response of the ocean carbon cycle to Milankovitch forcing in a simple atmosphere-ocean-sea-ice model.
  • Project 4: Testing Ruddiman's early anthropogenic hypothesis with an intermediate complexity model.
  • Project 5: A model study of the Paleocene-Eocene Thermal Maximum (PETM) around 55 Mya.

For further information, visit the ESMG website.

Earth Climate System Thumb

Some recent publications

Sedlacek, J. and L. A. Mysak (2008). A model study of the Little Ice Age and beyond: changes in ocean heat content, hydrography, and circulation. Climate Dynamics (published online December 2008), DOI: 10.1007/s00382-008-0503-6.

Lemieux, J.F., L.B. Tremblay, S. Thomas, J. Sedlacek, and L.A. Mysak (2008). Using the Generalized Minimum RESidual (GMRES) method to solve the sea-ice momentum equation. Journal of Geophysical Research, 113, C10004, DOI: 10.1029/2007JC004680.

Sedlacek, J. and L.A. Mysak (2008). Sensitivity of sea ice to wind stress and radiative forcing since 1500: A model study of the Little Ice Age and beyond. Climate Dynamics (published online April 2008), DOI: 10.1007/s00382-008-0406-6.

Mysak, L.A. (2008). Glacial inceptions: Past and future. Atmosphere-Ocean, 46: 317-341, DOI:10.3137/ao.460303

Sedlacek, J., J.-F. Lemieux, L.A. Mysak, L.B. Tremblay, and D.M. Holland (2007). The granular sea ice model in spherical coordinates and its application to a global climate model. J. of Climate, 20: 5946-5961, DOI: 10/1175/2007JCLI1664.1

Wang, Z. and L.A. Mysak (2006). Glacial abrupt climate changes and Dansgaard-Oeschger Oscillations in a coupled climate model. Paleoceanography, 21: PA2001, DOI 10.1029/2005PA001238.

Cochelin, A.-S.B., L.A. Mysak and Z. Wang (2006). Simulation of long-term future climate changes with the Green McGill Paleoclimate Model: The next glacial inception. Climatic Change, 79: 381-410, DOI 10.1007/s10584-006-9099-1.

Papa, B.D., L.A. Mysak and Z. Wang (2006). Intermittent ice sheet discharge events in northeastern North America during the last glacial period. Climate Dynamics, 26: 201-216, DOI 10.1007/s00382-005-0078-4.

Rahmstorf, S., M. Crucifix, A. Ganopolski, H. Goosse, I. Kamenkovich, R. Knutti, G. Lohmann, R. Marsh, L.A. Mysak, Z. Wang, and A. Weaver (2005). Thermohaline circulation hysteresis: a model intercomparison. Geophysical Research Letters, 32, L23605, DOI 10.1029/2005GL023655.

Wang, Y., L.A. Mysak and N.T. Roulet (2005). Holocene climate and carbon cycle dynamics: Experiments with the “green” McGill Paleoclimate Model. Global Biogeochemical Cycles, 19: GB3022. DOI 10.1029/2005GB002484.

Wang, Y. and L.A. Mysak (2005). Response of the ocean, climate and terrestrial carbon cycle to Holocene freshwater discharge. Geophysical Research Letters, 32: L15705, DOI 10.1029/2005GL023344.

Wang, Z., A.-S. Cochelin, L.A. Mysak and Y. Wang (2005). Simulation of the last glacial inception with the green McGill Paleoclimate Model. Geophysical Research Letters, 32: L12705. DOI 10.1029/2005GL023047.

Petoukhov, V., M. Claussen, A. Berger, M. Crucifix, M. Eby, A.V. Eliseev, T. Fichefet, A. Ganopolski, H. Goosse, I. Kamenkovich, I. Mokhov, M. Montoya, L.A. Mysak, A. Sokolov, P. Stone, Z. Wang and A.J. Weaver (2005). EMIC intercomparison project (EMIP - CO2): Comparative analysis of EMIC simulations of current climate and equilibrium and transient responses to atmospheric CO2 doubling. Climate Dynamics, 25: 363-385, DOI 10.1007/s00382-005-0042-3.

Wang, Y., L.A. Mysak, Z. Wang and V. Brovkin (2005). The greening of the McGill Paleoclimate Model. Part II: Simulation of natural millennial-scale variability during the Holocene. Climate Dynamics, 24: 481-496. DOI 10.1007/s00382 004-0516-8.

Wang, Y., L.A. Mysak, Z. Wang and V. Brovkin (2005). The greening of the McGill Paleoclimate Model. Part II: Simulation of natural millennial-scale variability during the Holocene. Climate Dynamics, 24: 481-496. DOI 10.1007/s00382-004-0516-8.

Mysak, L. A., K.M. Wright, J. Sedlacek and M. Eby (2005). Simulation of sea ice and ocean variability in the Arctic during 1955-2002 with an intermediate complexity model. Atmosphere-Ocean, 43: 101-118.