[OSM-talk] Bad coastline data

Bruce Cowan bruce.cowan at dsl.pipex.com
Sat Mar 24 15:28:24 GMT 2007


I have noticed many cases where there are holes in the coastline data.

One such area is Oban[1], where the coastline data has the tag
"created_by=dmgroom_coastlines".

Another area was the island of Cumbrae[2], which had a large coastline
hole in it until I filled it in with reference to landsat.

Since Scotland (especially the West Coast) has a lot of coastline, these
holes are concentrated here.

I assume the PGS data is automatically generated from satellite photos,
and in these cases, there was a cloud in the way.

[1]
http://www.informationfreeway.org/index.php?lat=7643474.113&lon=-610903.70691&zoom=13&layers=B00
[2]
http://www.informationfreeway.org/index.php?lat=7511973.78896&lon=-546429.08752&zoom=13&layers=B00
-- 
Bruce Cowan <bruce.cowan at dsl.pipex.com>





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