[GRASS-user] Query: number of 'areas' reported in v.build output does not necessarily represent different geographical areas

[Nikos Alexandris]

[..]

Nikos Alexandris:

> > > > I tried to import USGS' (2011) Global Mangroves map:
> ..
 
Markus Metz wrote:

> > > I assume the global mangroves map should not have overlapping
> > > polygons, therefore as long as there are overlapping areas and/or the
> > > number of centroids is not equal to the number of input polygons, more
> > > cleaning is needed.
 
Nikos A:

> > Unfortunately it seems there are overlapping polygons. 
> .. 
> > I will search the respective documentation tonight to find stuff related
> > to minimum area extent -- maybe this can help (?).
> 
> I can't find more than a short description of the production process and
> basic geo-referencing information
> (<http://data.unep-wcmc.org/datasets/21#fn2>). I will try to search more
> and perhaps gain contact with the responsible organisations UNEP-WCMC and
> USGS.

Forgot to add a lonk to a Factsheet, though it is about the 1997 version of 
the map:

<http://marine-portal.s3.amazonaws.com/resources/datasets/factsheets/6/original_Factsheet_Mangroves__1997.pdf?
1344610449>

N