Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 06
Fall 2009
Department
of Earth Science |Northeastern
Illinois University
Daily
Objectives #27 (December
10, 2009)
Dr. Sanders
By the end of today's class, you should be able to do the following:
WEATHER, CONTINUED
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Review: Explain the meaning
of air pressure / barometric pressure.
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Review: Tell what makes the wind blow, and how winds
are named (e.g. "west wind", "north wind", and so on).
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Review: Describe the rotation and
vertical motion of winds
about a high pressure center and a low pressure center.
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Review: Tell what kind of weather generally
accompanies highs and lows.
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Revisit: Using
a slip of paper with a circle to represent a HIGH or a LOW, draw arrows on
the circles to indicate direction of the rotation. Trace the circles on
tracing paper, and place the tracing paper over weather maps to illustrate
rotation of the HIGH and LOW systems.
Describe how the
winds change in Chicago under the following situations:
| A HIGH approaches
Chicago, passes directly over it, and then moves on. A LOW approaches Chicago, passes directly over it, and then moves on. |
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| A HIGH passes to the
north of Chicago. A LOW passes to the north of Chicago. |
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| A HIGH
passes to the south of Chicago. A LOW passes to the south of Chicago. |
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Given a weather observation, what can you
reasonably conclude? See the
attached worksheet!
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Putting together all the data
trends we have observed, particularly regarding air masses, fronts, highs,
lows, and winds, forecast the weather.
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Practice forecasting using
today's weather map
from the Chicago Tribune.
