Examination of the existing drainage basin delineation
at "Baltic Sea region GIS, maps and statistical database"
(digitized after a drainage basin definition done in 1986)
in comparison with the Hydro1k ...
The BALANS wetlands dataset has been assembled
from satellite data from the IRS 1C/1D WiFS satellite.
The reference data has been collected from national
sources. Note that the product is not homogenous ...