SFR 106 Lecture Notes - Lecture 1: Global Positioning System, Bracketing, Geographic Information System
19 Dec 2016
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Factors influencing c-c navigation: weather, terrain, vegetation, visibility, team composition, fatigue, access restrictions, boundaries, route choice. Improvised direction finding: by shadow stick & sun, by the stars, by using a watch & sun, bushman"s method kangaroos, gps. Predicted walking time: 5km/hr easy going, 3km/hr easy scrambling, 1. 5km/hr rough country, snow, sand or thick bush, add 1hr for every 500m up or 1000m down, every 5 hrs allow an 1hr for fatigue. Distance travelled - pacing & time: average step is 75cm, approx" 650-660 right steps = 1km. Judging distance: unit of measure (good up to 400m sports fields or swimming pools, appearance (takes a lot of practice compare with surroundings, bracketing (greater than 200m, less than 600m) Best if there are grid lines that run north-south on it. The objective is to determine the setting needed to travel from point a to point b in the field. Global positioning system (satellite based navigation: features included:
