[Wikimedia-l] All the lakes in Sweden

Sun May 19 08:50:03 UTC 2013

Thanks. I have discovered some estimations of lakes for more countries, but
no datasets.

Belarus: 11,000+
Canada: 31,752+ larger than 3 km² (2-3 million in total)
Estonia: 1,000+
Finland: 187,888 lakes 500 m² or larger (56,000 over 10,000 m²)
Latvia: 3,000+
Lithuania: 3,000+
Norway: 450,000+

2013/5/17 Anders Wennersten <mail at anderswennersten.se>

> Sorry not, and what we have learned is how hard is to to define what a
> lake is
>
> In Swden some mention there are 200 000 lakes, and that the Hydrology
> authority has data of over 150 000  but where less then 75 000 has a name
> and many with just rudimentary data. The lakes with environment impact data
> are 7 233 and in this project data with 100 dataitems per lake are
> collected from three authorities,  and articles are generated into sv:wp
> for 57 648 (not 30 000) lakes. Only around a few percent of these are
> without name and the most common name is used by 645 unique lakes... (just
> to take care of the forkpages is a science in its own)
>
> Anders
>
>
>
> Emilio J. Rodríguez-Posada skrev 2013-05-17 18:06:
>
>> Very cool project. Do you know how many lakes are there in other European
>> countries (or website/datasets)?
>>
>> It is for this
>> http://en.wikipedia.org/wiki/**User:Emijrp/All_human_**knowledge#Lakes<http://en.wikipedia.org/wiki/User:Emijrp/All_human_knowledge#Lakes>
>>
>> 2013/5/16 Anders Wennersten <mail at anderswennersten.se>
>>
>>  A new major botgenerating effort is now under way on sv:wp. All lakes
>>> (30000, all down to ones of pondsizes with no name) is now produced based
>>> on lake data from Swedish metereology institute and all lake environment
>>> data from a newly set up authority demanded by EU, in order to register
>>> and
>>> track all data of lakes in all Europe.
>>>
>>> The articles are generated by AWB and with some manual effort to take
>>> care
>>> of text in existing articles and a major effort taking care of all with
>>> the
>>> same name (Little lake, Black lake etc)
>>>
>>> Examples
>>> http://sv.wikipedia.org/wiki/%****C3%96ren,_Sm%C3%A5land<http:**
>>> //sv.wikipedia.org/wiki/%C3%**96ren,_Sm%C3%A5land<http://sv.wikipedia.org/wiki/%C3%96ren,_Sm%C3%A5land>
>>> >
>>> http://sv.wikipedia.org/wiki/****Bunn<http://sv.wikipedia.org/wiki/**Bunn><
>>> http://sv.wikipedia.org/wiki/**Bunn <http://sv.wikipedia.org/wiki/Bunn>>
>>>
>>>
>>> Also on maps from Google or Bing you can localize all lakes if you do not
>>> know the name (and for the ones missing name)
>>> https://maps.google.com/maps?****q=http://toolserver.org/~**para/**<https://maps.google.com/maps?**q=http://toolserver.org/~para/**>
>>> cgi-bin/kmlexport%3Fproject%****3Dsv%26article%3DKategori%**
>>> 253AInsj%2525C3%2525B6ar_i_J%****2525C3%2525B6nk%2525C3%****
>>> 2525B6pings_kommun<https://**maps.google.com/maps?q=http://**
>>> toolserver.org/~para/cgi-bin/**kmlexport%3Fproject%3Dsv%**
>>> 26article%3DKategori%253AInsj%**2525C3%2525B6ar_i_J%2525C3%**
>>> 2525B6nk%2525C3%2525B6pings_**kommun<https://maps.google.com/maps?q=http://toolserver.org/~para/cgi-bin/kmlexport%3Fproject%3Dsv%26article%3DKategori%253AInsj%2525C3%2525B6ar_i_J%2525C3%2525B6nk%2525C3%2525B6pings_kommun>
>>> >
>>> or
>>> http://www.bing.com/maps/?****mapurl=http%3A%2F%**
>>> 2Ftoolserver.org%2F%7Epara%****2Fcgi-bin%2Fkmlexport%**
>>> 3Fproject%3Dsv%26article%****3DKategori%253AInsj%2525C3%**
>>> 2525B6ar_i_J%2525C3%2525B6nk%****2525C3%2525B6pings_kommun<htt**
>>> p://www.bing.com/maps/?mapurl=**http%3A%2F%2Ftoolserver.org%**
>>> 2F%7Epara%2Fcgi-bin%**2Fkmlexport%3Fproject%3Dsv%**
>>> 26article%3DKategori%253AInsj%**2525C3%2525B6ar_i_J%2525C3%**
>>> 2525B6nk%2525C3%2525B6pings_**kommun<http://www.bing.com/maps/?mapurl=http%3A%2F%2Ftoolserver.org%2F%7Epara%2Fcgi-bin%2Fkmlexport%3Fproject%3Dsv%26article%3DKategori%253AInsj%2525C3%2525B6ar_i_J%2525C3%2525B6nk%2525C3%2525B6pings_kommun>
>>> >
>>>
>>>
>>> As you can see the text is substantial around 5000 characters and even
>>> thing like fisharts in the lakes are generated from databases.
>>>
>>> We are now starting to contemplate to put these type of basedata in
>>> Wikidata (we are experimenting with this for some adm units), and to
>>> generate the articles from that as a base instead of from database
>>> extracted from the authorities and put on personal PCs
>>>
>>> We have excellent relations with involved authorities that are really
>>> happy with the result, and we are now being approached by other
>>> authorites
>>> who wants to follow and get their data from theirs databases used to
>>> generate qualified Wp articles (like all runestones, all archaeological
>>> excavations sites, all artworks placed on official grounds etc)
>>>
>>> Are there any other effort like this going on, especially if any one come
>>> further in establish links from authorities databased to wikidata?
>>>
>>> Anders
>>>
>>>
>>>
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