User:Imagico/coastline problems for generalization

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This page collects various features of the Openstreetmap coastline that can cause problems for generalization. Some of these problems show up in my demo map, others are not visible at this scale.

Most of these are places where artificial channels are tagged as coastline or rivers are tagged as such a far distance upstream. For the purpose of generalization it is usually best to not carry the coastline tagging upstream beyond the first narrow of the river.

place type of problem fixed
Suez Canal canal tagged as coastline yes (thanks User:Werner2101)
Potidea Canal canal tagged as coastline no
Teno River river mouth as coastline too far inland yes
Lena Delta details of the Delta fully tagged as coastline no
Pyasina River river mouth as coastline too far inland no
Kolyma River river mouth as coastline too far inland no
Usedom Island connected to land no
Cape Cod Canal canal tagged as coastline no
Northern Dvina coastline far in front of actual coastline at river mouth no