The Application of Fred Sanders’ Teaching to Current Research on Extreme Cold-Season Precipitation Events in the Saint Lawrence River Valley Region
Abstract Fred Sanders’ teaching and research contributions in the area of quasigeostrophic theory are highlighted in this paper. The application of these contributions is made to the topic of extreme cold-season precipitation events in the Saint Lawrence valley in the northeastern United States and southern Quebec.
This research focuses on analyses of Saint Lawrence valley heavy precipitation events. Synoptic- and planetary-scale circulation anomaly precursors are typically identified several days prior to these events. These precursors include transient upper-level troughs, strong moisture transports into the region, and anomalously large precipitable water amounts. The physical insight of Fred Sanders’ work is used in the analysis of these composite results. Further details of this insight are provided in analyses of one case of heavy precipitation.
KeywordsHeavy Precipitation Relative Vorticity Warm Advection Cyclonic Disturbance Thermal Wind Balance
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- Bluestein, H. B., 1992: Synoptic-Dynamic Meteorology in Midlatitudes. Vol. I. Principles of Kinematics and Dynamics, Oxford University Press, 431 pp.Google Scholar
- Fritsch, J. M., and Coauthors, 1998: Quantitative precipitation forecasting: Report of the Eighth Prospectus Development Team, U. S. Weather Research Program. Bull. Amer. Meteor. Soc., 79, 285–299.Google Scholar
- Hoskins, B. J., I. Draghici, and H. C. Davies, 1978: A new look at the ω-equation. Quart. J. Roy. Meteor. Soc., 104, 31–38.Google Scholar
- Powe, N. N., 1968: The influence of a broad valley on the surface winds within the valley. Canadian Department of Transport, Meteorology Bureau, Rep. TEC-668, 9 pp. [Available from the Canadian Government Publishing Centre, Supply and Services Canada; Ottawa, ON K1A 0S9, Canada.]Google Scholar
- -, 1969: The climate of Montreal. Canadian Department of Transport, Meteorology Bureau, Climatology Study 15, 51 pp. [Available from the Canadian Government Publishing Centre, Supply and Services Canada; Ottawa, ON K1A 0S9, Canada.]Google Scholar