Small-Scale Meteorology of Freezing Precipitation

by Austin W. Hogan, U.S. Army Cold Regions Research and, Engineering Lab, Hanover, United States,

Document Type: Proceeding Paper

Part of: Cold Regions Engineering


Freezing rain and glazing are extremely disruptive to transportation, communication and power transmission. Local variations in the occurrence of freezing rain may be difficult to forecast. This paper describes terrain-induced temperature differences, and provides an analysis showing terrain-induced cold air retention during warm advection. Calculations indicate that it may be possible to locally ameliorate freezing rain in valleys with more than 300 m of local relief.

Subject Headings: Freezing | Precipitation | Temperature distribution | Rainfall | Air temperature | Coating | Power transmission | Forecasting

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