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Mapping Method
Jonathan Capone edited this page Apr 11, 2026
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1 revision
Depth is measured at discrete points:
(lat, lng, depth)
These samples form a spatial distribution rather than a continuous surface.
A surface is generated using Inverse Distance Weighting (IDW).
- closer points have greater influence
- influence decreases with distance
- multiple points contribute to each estimate
The output is:
- a continuous raster representation
- derived from discrete samples
- dependent on sampling density
Map quality depends on:
- survey spacing
- path coverage
- vehicle speed
- filtering thresholds
- interpolation introduces assumptions
- gaps in data affect accuracy
- surface is a model, not direct measurement