EOSC 112: THE FLUID EARTH. Atm12 Read: Kump et al. Chap.3, p. 44-45; Chap.4, p. 55-61. Objectives: To describe how atmospheric pressure and temperature vary with altitude; To explain why air moves; T o describe what sets the global atmosphere in motion ;
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
ATMOSPHERIC STRUCTURE AND DYNAMICS
Unlike the other layers, it is subjected to constant vertical mixing (convection).
It is this mixing process, through rising thermals and moist convection (followed by release of latent heat), that carries heat energy from the ground to cloud levels where it is radiated to space in the form of infrared radiation.
Localized convection2. Vertical Movement
=> radiation (or surface) inversion
=> very stable. Pollutants cannotdisperse upw.
Night time: cool air drains downhill, settling into valleys.
Temp. changes => Pressure changes => Winds
Surface air warms