GEOG 4060 Study Guide - Midterm Guide: Secondary Circulation, Ageostrophy, Thermal Wind
Document Summary
The process of transport of an atmospheric property by the wind. For advection to be occurring, there must be a gradient with a wind flowing perpendicular to it. The smaller the boxes (solenoids) formed, the stronger the advection. Mathematical justification of advection type by evaluating vector orientation and dot product. Evaluate wind direction, evaluate gradient vector, evaluate dot product, factor in negative sign. Conceptual understanding of the vorticity equation (each term and what the equation means, including graphical representations of the terms) / t = -vh: - / p ( / x v/ p - / y u/ p) + / p + ( fx / x - fy / y) High pressure to low pressure, valid throughout atmosphere. Curves to the right in the northern hemisphere, valid throughout atmosphere. Opposes the direction of motion, valid at surface. Pushes to outside of curve, valid throughout atmosphere.
