
Google Earth allows users to perform some basic measurements
(latitude and longitude, elevation, and size), which has led some users
to consider it a variety of GIS software. Geoscience professors should
be careful when making this comparison. Alan Glennon, a graduate student
in geography at UCSB, wrote two essays on the pros and cons
of so-called "naive" GIS (mainly focusing on applications such as
Google Earth). The essays (and the comments on them by other
geographers) are a good starting point if you are trying to decide
whether to use a virtual globe such as Google Earth or a full-featured
GIS such as ArcGIS or GRASS in the classroom. (also see Glenn Richard's Google Earth or GIS? section from the SERC Teaching with Google Earth website.
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