Hello,
First i'd like to know if anybody already used the Hydro1k data from USGS?
I try to make global maps of parameters from continental ones.
The initial projection is lambert azimutal equal area, with different
latitude and longitude of origins for different continents. I defined
one location by continent; then i reprojected all maps in a latlon
global location, with WGS84 datum.
There are gaps between continents, for example between Asia and Europe
and between Europe and Africa.
I wonder if the problem comes:
- from the data which don't perfectly cover the earth
- from my reprojection in grass
Thank you if somebody can help me
Regards
Stéphanie
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