GEOL 106 Lecture Notes - Lecture 3: Andrea Gail, Freezing Rain, Landfall
23 Mar 2018
School
Course
Professor
Document Summary
Cyclones: what are they: an area of low atmospheric pressure characterized by rotating winds, rotation is, counterclockwise in the northern hemisphere, clockwise in the southern hemisphere, rotation deflection is a result of the coriolis effect. Coriolis effect: a phenomenon that causes water and air to curve as they travel across or above the earth"s surface, earth rotates at an effectively constant angular velocity, different latitudes have different linear speeds, equator: ca. Influences big, slow moving things (global weather patterns and storms) not small fast things (toilet & sink water draining) Hurricane structure: rain bands, areas of clouds and rain containing numerous thunderstorms that spiral around a hurricane, thunderstorms and surface winds increase in intensity towards the centre of the storm, eyewall. Innermost band of clouds and rain: contains the most intense winds and rainfall, eye, a circular area of calm conditions and broken clouds in the centre, low barometric pressure.
