[Talk-GB] Import of UK SSSI data

Sat Nov 16 17:55:31 UTC 2019

A few things:

   -  A number of SSSI's are mapped
   <https://taginfo.openstreetmap.org.uk/search?q=site_of_special_scientific_interest#values>
   as many are co-incident with various types of Nature Reserves, although
   sometimes there are minor differences in boundaries. For instance the SSSI
   at Newhouse Farm National Nature Reserve is smaller than the NNR.
   - SSSIs are not nature reserves, so protected area is correct. A
   designation, protect_class etc should be considered.
   -  As some are already mapped, any import would need to detect
   collisions & potentially do some quite complex processing if the SSSI is
   not coincident with the element currently tagged with that information.
   This needs to documented. I note that at least one SSSI lies within another
   on OSM which is possibly inaccurate, or reflects historical change (merging
   of 2 SSSIs).
   -  Document which transforms are used to convert from OSGB co-ordinates.
   I suspect we have 3 potential ones in use EPSG:27700, OSTN02 and OSTN15, see
   this <https://www.bnhs.co.uk/focuson/grabagridref/html/OSGB.pdf>
   (lengthy) doc from the OS.
   -  What is the purpose of adding these to OSM? If they get rendered and
   show up on private land which is not accessible this may have undesirable
   consequences. For 90% of all my purposes I only want SSSIs as an overlay
   and find using the native data from NE/SNH/NRW either as a separate layer
   in QGIS or as discrete tables in PostGIS is perfectly fine. The major gripe
   is having to get data from 3 separate sources (it would be 4 if NI ASSIs
   were available as open data).
   -  Virtually all of NE (and SNH & NRW) data is created against MasterMap
   and therefore contains OSGB material. I think, but cannot be certain, that
   NE obtained the necessary permissions for this data to be freely usable.
   Owen Boswarva who occasionally contributes to the list may know the actual
   position rather better than me. To date I have relied on personal knowledge
   or survey for things like NNRs and LNRs rather than consulting the NE shape
   files. (There's a reasonable write-up on Rowmaps as to how this pertains to
   footpath data and the PSMA, but, again, I'm not sure under what type of
   agreement NE licences OSGB dat)
   -  SSSIs change (although perhaps not as much as nature reserves), the
   most notorious being the dunes at Menie: if data are imported there needs
   to be some plan w.r.t. maintenance.

Jerry

On Sat, 16 Nov 2019 at 16:34, Henry Bush <openstreetmap at spookypeanut.co.uk>
wrote:

> Hmmm, I see. I'll dig further into the licensing side of things before I
> go any further.
>
> Thanks for the pointers!
>
> On Sat, 16 Nov 2019, 16:28 Chris Hill, <osm at raggedred.net> wrote:
>
>> I think there may be a problem here. The web page describing the data
>> says "© Natural England copyright. Contains Ordnance Survey data". Many
>> public bodies suffer from the viral OS copyright problem, where the data is
>> based on OS mapping data and OS have claimed copyright over the geodata
>> element of such data in the past.
>>
>> You need to be sure this is not the case before you use any of these
>> datasets in OSM.
>>
>> --
>> cheers
>> Chris Hill (chillly)
>>
>>
>> On 16/11/2019 15:30, Henry Bush wrote:
>>
>> Sorry, yes, the source of the data is the Natural England API:
>>
>> https://www.arcgis.com/home/item.html?id=f10cbb4425154bfda349ccf493487a80
>>
>> https://naturalengland-defra.opendata.arcgis.com/datasets/f10cbb4425154bfda349ccf493487a80_0/
>>
>> The data is freely usable, so there shouldn't be any licensing issues.
>>
>> On Sat, 16 Nov 2019 at 15:24, Philip Barnes <phil at trigpoint.me.uk> wrote:
>>
>>> What is the source of the data you are planning to import?
>>>
>>> Remember wikipedia is not a useable source under OSM licensing terms.
>>>
>>> Phil (trigpoint)
>>>
>>>
>>> On Sat, 2019-11-16 at 15:12 +0000, Henry Bush wrote:
>>> > Hello all,
>>> >
>>> > (I've sent this to both the talk-gb and imports mailing lists)
>>> >
>>> > This is just a heads-up: I'm thinking about importing the data about
>>> > UK SSSI areas into openstreetmap.
>>> > https://en.wikipedia.org/wiki/Site_of_Special_Scientific_Interest
>>> >
>>> > I've had a quick look at a few, and none of them seemed to be marked
>>> > on the map. If I go ahead with the import, I'd do a much more
>>> > thorough investigation first. This mail is simply a prompt for
>>> > discussion as to whether people think it's a good idea.
>>> >
>>> > At the moment I'm still in the research phase. I've started
>>> > collecting related links on a wiki page:
>>> >
>>> >   https://wiki.openstreetmap.org/wiki/User:Spookypeanut/SSSIBot
>>> >
>>> > NB: this page is really just bookmarks for me at this stage. If I go
>>> > ahead I'll make a proper, more informative page.
>>> >
>>> > Cheers,
>>> >
>>
>>
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