Introduction | Great circle distance | Points on great circles | Point at distance and bearing | Maximum latitude on a great circle | Great circle intersections | Triangulation | Bearing | Getting off-track | Distance to a polyline | Rhumb lines | Characterizing polygons | Sampling | Daylength | References

LINTULcassava model | Run model | Figure 1A | Figure 1 | Figure 2 | Figure 3 | Figure 4 | Figure 5