Comparison: UK Ordinance Survey (circa 1948) and Landsat ETM+
Isle of Wight - Image Back to Isle of Wight. I received an email that shared about an effort by a gentleman that had used a copyright free Ordinance Survey map (circa 1948) of the Isle of Wight to construct a shoreline map. His efforts were careful and cartographically solid.
Isle of Wight - Image and Map Detail (Western End) So, the thorough map maker that I am, I compared my digitized coastline (using Landsat ETM+ N-30-50_2000) against the Ordinance Survey map file.
Isle of Wight - Map Detail (Western End) The Ordinance Survey shoreline is the green line and the Landsat ETM+ derived shoreline is red. Since the ETM+ image is georectified, I have great confidence that it tracks the shoreline as it was (in 2000). Whereas the Ordinance Survey tracks a 1940's best effort (most probably using aerial photography and land surveys).
Am I wrong or does the Enhanced Vector Shoreline (EVS) seem the most "true" representation of the actual shoreline?
OT: Comparison
