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Geography 101

Fall 2008 Physical Geography:

The first three items below are periodically handed out in class; the most current copy should always be available here.

Physical Geography Topic links:

Humans and Earth Systems

A recent article in EOS describes the impact of regional climatology and meteorology on southern California wildfires, including the effects on human populations and fire management. Some of the references are available online:

Southern California 2003 Firestorm Report - Report on the lessons learned from the Oct 2003 firestorm in southern and Baja California, as well as other resources and a budding wildfire portal.

More links:

Current (as of 9-23) consensus forecast track for Hurricane Jeanne. Most models show the track somewhat east of the one pictured, however, NOGAPS has it significantly west of there. So the consensus is to move the average track of the other models slightly west. Is that correct? We'll have to see; perhaps NOGAPS knows something the others don't...

Mathematics of Earth Systems

The universe is definitely nonlinear, even though the initial way of treating something like the motion of the atmosphere, and most natural dynamical systems, is with simple linear mathematical tools. In general, these tools can only approximate natural systems, sometimes only a small portion of the overall solution space. As an example, check out these lenticular cloud pictures. Does that look like the result of a simple linear process to you? I hope not...

For the mathematical viewpoint, including examples of fluid flow, check out these phase portraits, and then go read up on Chaotic Dynamics and the Butterfly Effect. Fun stuff! (Start with a copy of "Does God Play Dice?" by Ian Stewart).

The old geography web pages are no longer maintained. All the current content is now in Zope, and no updates will be made to the old static pages.

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