GEOG 4060 Study Guide - Final Guide: Cyclogenesis, Atlantic Ocean, Secondary Circulation
Document Summary
A front is a boundary separating airmasses with different thermal properties. What are the characteristics of pressure, moisture, wind, temperature across cold and warm fronts? cold. Compare and contrast the 3-d structure of cold vs warm fronts, as well as the weather they produce. cold. Cold air is a wedge, warm air travels up it, Warm air goes up along it cumulus clouds clouds thickest and lowest close to front since and heavy precip. Clear weather behind they don"t have to travel up as much. Thermally direct circulation since air is rising in warm air ahead and sinking in cold air behind. Be able to identify frontogenetic/frontolytic scenarios for each. Confluence terms: stretching deformation and divergence, frontogenesis occurs when the angle between the winds and the axis of dilatation is less than 45 degrees, meaning that there is net convergence or confluence. Stretching terms: shearing deformation, frontogenesis occurs when isentropes are becoming more horizontal.
