Back in the swing of GIS all day, every day. This weeks topic started our coverage of natural hazards, specifically lahars. Of course, the first thing I had to do was Google lahars to find out they are a type of mud flow of rocks, debris and water that are the result of an erupting volcano that typically flow in river valleys and can be very catastrophic. Now that we know what a lahar is, lets move onto this weeks maps. My first map (Map 1) depicts the digital elevation of Mt Hood in Oregon along with the streams that surround it and form as the basis of potential lahar paths.
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Map 1
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Map 2 shows the population and schools that would be directly affected by the potential lahars.
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| Map 2 |
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