Wednesday, September 12, 2012


This is my first GIS class online at the University of West Florida, so I'm just learning about all the requirements.  I'm taking GIS 4990, Special Topics in Archaeology this fall semester.

For our first assignment, we used both vector and raster datasets to identify and drill down on the location of "La Danta", the largest pyramid in the world by volume, which is located in Guatemala and discovered in 2009.  We used the various bands of the Landsat satellite to try and find an image that would show the vegetation and surroundings of the pyramid in question more clearly.  The visible colors are in the first 3 bands, 1 - 3.  Band 4 starts getting into the infrared area that humans can't see, and the higher up along the band scale you go it gets into SWIR and IR, or Short wave infrared and infrared.  This was a very interesting assignment, and I look forward to learning more about the processes involved.

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