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crucial to make sure the selected receiver can provide the accuracy needed and can use the correc-
tion sources available in the project area. System compatibility with the geophysical sensors is also
very important. Two fundamental requirements are (1) sufficient number of ports to connect to the
equipment and (2) format of the GPS receiver output that can be supported by the equipment used
in geophysical application. Another important consideration when choosing a GPS receiver is its
reliability—its ability to withstand the rigors of the application, like high vibration, extreme heat or
cold, dust, or moisture. In summary, all factors listed here should be considered carefully and in the
context of the application-specific geophysical sensor and GPS requirements.
In conclusion, a few commercial mapping software packages, designed for processing, visual-
izing, and analyzing large earth science data sets suitable for geophysics applications are listed next.
These include, for example, Geosoft products (www.geosoft.com), ESRI GIS and mapping software,
such as, ArcGIS, ArcView, or ArcInfo (www.esri.com), SOILTEQ products (www.soilteq.com), or
Integrated Mapping Systems Inc. solutions (http://www.mappingsystems.com), just to name a few.
ACknoWledGMentS
I would like to thank my PhD students, Tae-Suk Bae and Chang-Ki Hong, for their helpful com-
ments on this manuscript. Special thanks go to another PhD student, Yudan Yi, who created Figures
8.6 and 8.8.
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