KIS Submarine Cables Import
The following areas are covered:
|North Sea - North & West||58°00′ N||21°00′ W||66°12′ N||05°00′ E|
|North Sea - Central||53°00′ N||02°36′ W||58°00′ N||10°00′ E|
|North Sea - South||50°52′ N||00°20′ E||53°09′ N||05°35′ E|
|English Channel||48°22′ N||04°02′ W||51°00′ N||01°55′ E|
|South Western Approaches||47°20′ N||13°00′ W||51°40′ N||03°00′ W|
|Irish Sea||51°27′ N||07°36′ W||55°40′ N||02°44′ W|
The limitation to these areas leads to (transatlantic) cables being cut off in the middle of the sea.
The data is thinned to preserve an accuracy of 10m. Its quality looks mixed in my opinion, but I got no other data for comparision to indorse/disprove that impression.
A handful of cables with apparently bad quality (jumping nodes) weren't imported on purpose.
Additionally, especially when it comes to inactive cables (disused=yes), large segments are missing, from which I don't know if the data is error prone or if the cable was actually removed from the ground of the sea.
Check for existing data
The import was done manually, i.e. the data was a little bit augmented (capitalization, spelling errors, additional information) and uploaded using JOSM. For about 50% of the cables, I checked if they were already present in OSM, which wasn't the case for a single one. The rest was then imported without explicit checks. If I created redundant data, please inform me (or fix the problem yourself, if you can).
The tagging schema was controversially discussed on the german mailing list.
communication=line respectively power=line name=Foo operator=Bar source=Kingfisher Information Service, February 2010, http://www.kisca.org.uk/charts.htm submarine=yes
This schema looked good for me but later on additional suggestions were made. Please feel free to improve the tagging.
In the data there was no cable tagged as both power and communication cable. But I found at least one segment, where power and communication cables ran parallel. Maybe these cables are just a single one in reality.
for Nautical Chart
seamark:type=cable_submarine seamark:cable_submarine:category=* ( power | transmission | telephone | telegraph | mooring | optical | ferry )
|transmission||High voltage power|
|mooring||Mooring chain or cable|
|optical||Fibre optic cable|