Maps, navigation & GPS workshop, May 29

Tuesday, June 1, 2010

Table of Contents

Pre-trek - explore topology of new mountain ranges and identify candidate trails
Basics of topology
Google Maps - Terrain View (topology)
Google Maps - Satellite View & Google Earth (topology and vegetation density), 3D views
overlay maps - elevation contours, position
Wikimapia - identify additional landmarks
Survey of India topographic maps, scale 1:25K, 1:50K
identifying villages, trails, streams, lakes
AMS (Army Map Service) topographic maps, scale 1:250K (1954)
Russion topographic maps, scale 1:200K

GPS explained
Satellite lock, position, accuracy
Maps - road and topographic
Electronic compass
Logging tracks, waypoints
Elevation profile
Sun & moon
GPX - universional exchange format

Field navigation
Downloading Google Map waypoints and trails in GPS
Convert GM to KMZ -
Convert KMZ to GPX -
Stiching Google Maps and overlaying GPS grid
Example -

Post trek
Download GPS trails in Google Maps/Earth for post-trek review
Geotagging photographs

Original recordings (highest quality) are available over here. Total size is around 1GB -

These files can be played back with CamStudio

YouTube videos (lower quality) are available here -

Watch the 14 videos in 720HD on a good broadband connection.

Link to presentation



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