ATM OCN (Meteorology) 100
PLANETARY SCALE CIRCULATION of the
PART I - OBSERVATION & THEORY
Lecture #16 & #17-A Scheduled for:
13 JUL 2004 (T) and 14 JUL 2004 (W)
Recommended Readings from Moran (2002):
pages 191-199; 199-200; 205-207.
Today's Lecture Objectives:
- To locate on a map the principal prevailing wind regimes associated with the planetary-scale circulation.
- To locate on a map the semi-permanent surface pressure systems or "centers of action" that influence the planetary-scale circulation.
- To relate the named prevailing wind fields to the global air pressure distribution.
- To describe and explain the distribution of precipitation at representative locations.
- To sketch and label a cross-section diagram showing the idealized three - cell model of global atmospheric circulation.
- To describe the results of the "dishpan experiments" and how they simulate the global scale atmospheric circulation.
- To describe the seasonal changes in the major features of the planetary-scale circulation regime.
- To discuss the influence of ocean - continent distribution on global pressure distribution.
- To describe the seasonal variations in the monsoon wind regime, focusing upon the monsoon system of south Asia.
- To describe the relationship between the Southern Oscillation and a major El Niño event.
B. GLOBAL SCALE PREVAILING SURFACE WINDS
- Historical Observations
- Names of the Principal Prevailing Surface Winds
C. AVERAGE SEA-LEVEL PRESSURE PATTERNS
- Locating and naming the semi-permanent Surface Pressure "Centers of Action"
- Relationships between Prevailing winds and Major Pressure Patterns
- Relationships between Prevailing winds, "Centers of Action" and Major Ocean Currents
- Relationships between "Centers of Action" and Major Biome Patterns
- Tropical Rain Forests
- Subtropical Deserts
- Polar Deserts
Links to Other References:
- The Space Science and Engineering Center (SSEC) has a current composite satellite image that shows the cloud field around the globe. These clouds are imbedded in the planetary scale circulation regime. A two-week global montage movie is also available. (Note: This movie has many frames and may take some time to load.)
- Descriptions of World Biomes
Produced by Edward J. Hopkins, Ph.D.
Department of Atmospheric and Oceanic Sciences
University of Wisconsin-Madison Madison, WI 53706
Latest revision: 30 July 2004 (2300 UTC)