Mesas and Buttes -- the erosional power of the wind
You may wish to print a copy of the lecture outline (minus the illustrations) and you have two options:
- Microsoft Word if you use that Word Processor or
- A Netscape Document that you can print (use the Left Arrow key to return to this page).
- Or, you may view the Deserts power point presentation shown in class.
After reading Chapter Thirteen, you should be able to:
- Interpret the distribution of deserts on the Earth's surface.
- Explain how weathering and water affect surface topography of arid
- Describe how wind can erode and transport materials.
- Review the types of deposits created from wind-blown sediment.
Take a few minutes and review pressure, forces, and winds in the desert link given in the Chapter Heading.
The atmosphere serves to distribute the energy of solar radiation received by the Earth. Most of the radiant energy is converted into atmospheric heat energy before it is radiated back into space. Winds redistribute this energy, dissipating more of it in the process than by all other forces combined. Both the short-term fluctuations of the atmospheric system (the weather) and the longer-term
fluctuations of average weather (the climate) are an important part of the history of the Earth.
- The OnLine Meteorology Guides
"The Online Meteorology Guide is a collection of web-based instructional modules that use
multimedia technology and the dynamic capabilities of the web. These resources
incorporate text, colorful diagrams, animations, computer simulations, audio and video to
introduce fundamental concepts in the atmospheric sciences. Selected pages link to (or will
soon link to) relevant classroom activities and current weather products to reinforce topics
discussed in the modules and allow the user to apply what has been learned to real-time
Go through the first three modules
- Energy Interactions With The Earth's Surface
"When electromagnetic energy from the sun hits the earth's surface three fundamental energy interactions are
possible. Various fractions of the energy are:
- Greenhouse Gases
"The fact that solar radiation is
concentrated near the visible light part of the spectrum, while Earth radiation is shifted to the infrared, relatively long wavelength band
implies that there are differences in the energy input from above versus from below the atmosphere. "
A Virtual Field Trip Big Bend National Park
Big Bend National Park --"
Big Bend National Park Virtual Field Trip is designed to be a guide to the geological history and features of the
Big Bend National Park area.
The Big Bend Virtual Field Trip was created for an independent study project for the Texas A&M University
Department of Geology under the supervision of Dr. Bruce Herbert. During the week of Spring Break 1996, we
visited Big Bend for the purpose of researching the geology of the park and taking pictures of pertinent geologic
features. Once all of the pictures and information were compiled, we scanned the images and started
construction of the web site."
Learning about geology from a computer screen is only half as fun as enjoying it in the field!
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Copyright by John C. Butler, July 29, 1995