EESD09H3 Lecture 7: WIND Lecture 7
11 Dec 2019
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Lecture 7 - other storms: polar lows, firestorms and sandstorms. Past midterm will be posted for your practice. Covers lectures from 1 to 6 until the thunderstorm and tornadoes. If you have done the self assessment questions at tophat and the discussion questions then you will find no surprises. Past midterm will give you an idea on the type of questions. Cyclones forming over the open sea in polar regions. Sometimes called arctic hurricanes due to well defined eye . Continental cold arctic air (cp or ca) moves over open sea water (relatively warm) Heat source (sensible and latent) of the open sea fuels the storm. Polar lows form quickly reaching maximum intensity within 12 to 24 hours. Only a few last more than 24 hours in ec study. Polar regions over open sea relative warmth is energy source. Limited by sea ice conditions open water a necessary condition. Most polar lows occur in the labrador sea.
