MapToGround
GPS use and mapping in humanitarian applications

Mapping and GPS basics

A Field Guide to the GPS and Associated Technology   August 2021

The "Humanitarian Field Guide to GPS Technology" is a 7 page PDF document that covers GPS basics, waypoints, tracks, scale, coordinate systems, and datums.  It discusses the interaction of KMZ files, GPX files and GPS data with Google Earth.  It includes links to mapping and GPS resources.

    GPS basics – brief description – effectiveness – waypoints – tracks
    Coordinate systems – latitude, longitude – geographic – UTM – MGRS
    Datum basics – WGS 84
    Scale – scale ratio – scale bar – large/small scale
Updated: 10 August 2021       MapToGround introduced July 2010.       site management