[Imports] UN Mappers import of UNSOS waterways in Somalia

Rafael Avila Coya ravilacoya at gmail.com
Wed Apr 8 08:39:16 UTC 2020


Hi, Chistoph:

I added some extra info that answers your questions in the wiki, under 
Data description and Tagging Plans sections.

Cheers,

Rafael.

[1] https://wiki.openstreetmap.org/wiki/Import/Plan_Outline

O 07/04/20 ás 17:45, Christoph Hormann escribiu:
> On Tuesday 07 April 2020, Rafael Avila Coya wrote:
>> Hi, Christoph:
>>
>> What do you mean when you say that it lacks any information on the
>> provenance and specifications of the source data?
>>
>> As explained in the wiki, I am saying that the data is coming from
>> UNSOS, using SPOT imagery. You can download the data under data
>> source site, in the Background subsection of the wiki.
> I am sorry for being unclear - i was meaning:
>
> * what is the meaning of the various attributes in the source data?
> Normally data sets like this come with a specification document that
> tells you what for example an attribute like FCSubtype=* or HYP=1 is
> meant to indicate.
> * how has this data been created from the SPOT imagery mentioned?  Was
> it produced with some kind of AI algorithm?  Was it traced by by
> humans?  If the latter was it done by people with local knowledge of
> the area or by people from abroad?  What was the original intended
> purpose of generating the data?
>
> There are various peculiarities that can be observed looking at the data
> but i am reluctant to draw any conclusions or make recommendations
> based on these observations without knowing how the data was produced.
>



More information about the Imports mailing list