MapToGround
GNSS use and mapping in humanitarian applications

Mapping and GNSS basics

A Field Guide to the GNSS and Associated Technology   August 2021

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

    GNSS 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: 17 Febuary 2024 nbsp;     MapToGround introduced July 2010.       site management