GEOG 1120 Lecture Notes - Geostationary Operational Environmental Satellite, Lightning, Wind Shear
Document Summary
These images don"t work at night (too dark!) Does not have a scale because of the steven-boltzmann equation, temperature is simply recorded. Radar system detects intensity of a signal (receiving by cloud, transmitting back to radar) Signal is not only horizontal, but also vertical. Air-mass (smallest and weakest) updrafts and downdrafts going side by side = stage a. Severe (lasts longer, 2-3 hrs, than air-mass thunderstorms due to strong vertical wind shear = change in wind speed in elevation) Inversion layer acts as a lid (ie. a pot lid to boil water faster) Incorporates updrafts and downdrafts as a sign of maturity. Ice vs. liquid water as a matter to determine electrical charge. A sudden heating and cooling around the lightning bolt creates the sound. Lightning comes first because the speed of light (3 x 10 to the power of 8 ms -1) is greater than the speed of sound (330 ms -1)
