Commons:Geograph Britain and Ireland/Reverse geocoding

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Reverse geocoding is used for Geograph images being uploaded to Commons. Reverse geocoding is finding a named location based on coordinates. Different sources have been used in the past. We currently use http://edwardbetts.com/geocode/ . This tool will provide a Wikidata item to be used in location of creation (P1071) (structured data) and a category to place the image in. The tool combines OpenStreetMap and Wikidata. Results can be improved by editing these two sites. This page provides an overview per region

Editing

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OpenStreetMap

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Adding a Wikidata tag to places informs the tool what item to use

Wikidata

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On Wikidata items should have OpenStreetMap relation ID (P402) if that is available on OpenStreetMap. Every item about a location should have Commons category (P373) so the tool knows what category to use. Quite often we have slightly overlapping items on Wikidata (for example about the village and the parish with the same name) and one category on Commons. Just add the Commons category (P373) to both items.

Every item about a location should also have located in the administrative territorial entity (P131).

Areas

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The regions covered by Geograph Britain and Ireland all link to OpenStreetMap:

United Kingdom

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The different parts of the UK are all link to OpenStreetMap:

England

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England has four layers of subdivisions from large to small:

Most images will end up at the parish level. See OSM missing report for England for what items need attention.

Region of England

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Map
Regions of England

region of England (Q48091) is complete. All 9 regions have the OSM and Commons category link: query.

County of England

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Map
Historic counties of England
Map
Ceremonial counties of England

county of England (Q171809) is not very straightforward. Different types exist:

For example Leicestershire (Q23106) (OSM 78309) is a ceremonial county with the non-metropolitan county Leicestershire (Q21272890) (OSM 189890) and Leicester (Q83065)/City of Leicester (Q21683242) (OSM 162353) in it.

District of England

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district of England (Q349084) (including non-metropolitan district (Q1187580) which includes unitary authority area in England (Q1136601)): Overview. Needs attention, plenty of missing Commons category (P373) and OpenStreetMap relation ID (P402)

Civil parish of England

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civil parish (Q1115575): Overview of all of them and as a map.

Wales

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Map
Principal areas of Wales

Wales has two layers of subdivisions from large to small:

100% of Wales is covered by these areas

Scotland

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Map
Scottish council areas

Scotland has just one layer of subdivisions:

There are also:

  • Scottish civil parish (Q5124673), which are not subdivisions of the council areas. Overview. Some missing categories need to be created here. Parishes need to be imported to OpenStreetMap, but in the meantime are matched based on the parish code.

They can be divided as:

Northern Ireland

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There is one layer of adaministrative subdivisions:

However, Commons and Wikipedia categorisation is based upon the following:

These form a hierarchy.

Ireland

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There are some complications (eg Co Dublin has been split in 4 units, Cork is split from Co Cork).

The following are more useful than Q2500304 and better reflects existing usage on Commons/Wikipedia:

Isle of Man

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Map
Sheadings of Isle of Man
Map
Districts of Isle of Man

There is two layers of subdivisions in the Isle of Man:

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