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 #24 (December
1, 2009)
Dr. Sanders
By the end of today's class, you should be able to do the following:
TOPOGRAPHIC MAPS
w
Review:
Sketch a profile illustrating a floodplain, and explain how a
floodplain would appear on a topographic map. (The quadrangles we used
were Clinton Illinois-Iowa, Menominee Illinois-Iowa, Blackhawk Illinois,
Atkinson Illinois, and Geneseo Illinois.)
w
Review:
Delineate a watershed boundary (divide) on the
Galena Illinois quadrangle.
w
Review:
Using the stream table, demonstrate how erosion, transport,
and deposition of sediments occur, and how a stream channel,
floodplain, and delta form.
WEATHER
w
Explain what humidity is
and tell how humidity measurements are expressed.
w Explain what an air mass is.
w
Explain how moisture content and
temperature of an air mass affect its density.
w
Describe continental polar (cP),
maritime tropical (mT), continental Arctic, (cA),
and other air masses that affect the continental United States. (See
http://okfirst.mesonet.org/train/meteorology/AirMasses.html
and
http://www.qc.ec.gc.ca/meteo/Documentation/Masse_e.html .)
w
Explain what a front is.
w
Using the worksheet
attached here, study and interpret the weather maps we have been collecting
for the past month. Today, the focus is on air mass temperature, fronts,
and precipitation.