PPT-FRONTS

Dr Hooda What is an air mass A large body of air having nearly uniform conditions of temperature and humidity at any given altitude Warm air forms over tropical regions near the equator . Air streams tend to contain relatively narrow ranges of potential temperature and wet bulb potential temperature w peculiar R isentropic analyses for synoptic scale weather systems tend to show well defined air streams which are identified by nam rarefactions and contact discontinuities Contact discontinuities are surfaces that separate zones of different density and tem perature By definition such a surface is in pressure equilibrium and no gas flows across it When as often happens the tang Air streams tend to contain relatively narrow ranges of potential temperature and wet bulb potential temperature w peculiar R isentropic analyses for synoptic scale weather systems tend to show well defined air streams which are identified by nam “Whirlwind Theory”. Rotation. Coriolis. Espy. Convergence into Low. PGF. 1841. Loomis. Rotation AND Convergence. 1860. Early Maritime Observations (Winds). http://m.nautil.us/issue/25/water/the-dueling-weathermen-of-the-1800s. the. Weather. Sun = Energy driving weather. Equator = warm; Poles = cold .  . why. ?. Daytime: air over land warmer than over water; reverse at night. .  . why. ?. Convection currents . Evaluation: See worksheet. A - Cold Front B = Warm Front B1. Cool air mas - warm air mass moves in. A2. Warm air mass - cool air mass moves in. B3. Bri Forecasting Weather. Now that Meteorologists understand the factors that affect weather they must put all of this together to create . weather maps. and to determine . weather patterns. .. Together weather maps and weather patterns are very helpful in . What’s the difference?. Air Mass. An . air mass . is a large volume of air with the same temperature and moisture content.. As an . air mass . forms, it takes on the characteristics of the area over which it develops.. We will go over how to upload your file into canvas together.. Wanted Poster Requirements. You are making two posters.. The name and a picture of the Pressure Systems.. The way they circulate . (clockwise or counterclockwise). . 1. An air mass is a wide-spread section of the troposphere with uniform . temperature . and . humidity . (moisture). 2. The source region is the geographic location the air mass developed over. . If air settles over one location for a long time, it develops the characteristic temperature and moisture of the area.. © U.S. Coast Guard . Auxiliary Association. No attempts to add, modify or delete information contained within this document shall be made. If errors are discovered, please contact the U.S. Coast Guard Auxiliary’s National Training . Lisha. M. . Roubert. University of Wisconsin-Madison. Department of Atmospheric & Oceanic Sciences. Fronts: The Boundaries between Air Masses. A front is defined as the transition zone between two air masses of different density. . Weather Maps. Storms. Weather Maps. Weather Stations. Show the following data. in a concise way:. . - cloud cover. . - wind direction. . - wind speed. . - temperature. . - precipitation. . air masses.. . An . Air Mass. is an immense body of air, some 1600+ km (~1000mi) across and 1-3 km (~.6 to 1.9mi) thick, with relatively homogeneous physical properties (density, T. . and moisture) at a given altitude..