ATM OCN (Meteorology) 100
PHYSICAL & CHEMICAL COMPOSITION of the EARTH'S ATMOSPHERE
Lecture #2-A scheduled for:
15 JUN 2004 (T)
Recommended Readings from Moran (2002):
Today's Lecture Objectives:
- To locate the homosphere and the heterosphere and distinguish the features of each region.
- To rank the major gaseous constituents found in the present earth's atmosphere according to their relative volumetric concentration.
- To discuss the importance of the atmospheric components: major fixed gases, carbon dioxide, water vapor, ozone and dust.
- To identify how the earth's atmospheric constituents have evolved by outlining the principal events in the evolution of the earth's atmosphere.
- To explain how human activities could influence the composition of the present earth's atmosphere.
- To identify the factors that determine the capability of a planet to maintain an atmosphere.
- To locate the ionosphere and describe its origin and implications for radio transmission.
- To locate the region of maximum auroral activity and explain its occurrence.
A. PRACTICAL QUESTIONS
B. PRESENT EARTH'S ATMOSPHERE
- Early Classical Greek Thought
- Modern Chemistry Terminology (Elements, Compounds, Mixtures)
- Vertical Variations of the Atmospheric Composition
- Constituents of Air in the Homosphere
- Principal Fixed Permanent Gases of Dry Air in the Homosphere
- Principal Variable gases in the Homosphere
- Anthropogenic Substances
- Aerosols (Liquids or solids suspended in the Atmosphere)
- Principal Gases in the Heterosphere
C. ORIGIN & EVOLUTION OF THE EARTH'S ATMOSPHERE
- General History of the Atmosphere
- Rationale for Current Composition
- Effects of Human Intervention
D. ATMOSPHERES OF OTHER PLANETS - COMPARATIVE PLANETOLOGY
- General Composition Considerations
- Atmospheric Composition of the Planets
E. VARIATION OF CHARGED PARTICLES WITH HEIGHT
- Composition (Ions)
- Radio communications
- Aurora Borealis (Australis)
- The Reasons for the Ionosphere
Links to Other References:
Additional information can be found on the Internet through the following sites:
Latest revision: 21 June 2004 (1300 UTC)
Produced by Edward J. Hopkins, Ph.D.
Department of Atmospheric and Oceanic Sciences
University of Wisconsin-Madison Madison, WI 53706