jakubsisak

Unable to produce usable contours & hillshade from GeoBase 1:50K dem

Discussion created by jakubsisak on Sep 8, 2010
Latest reply on Sep 9, 2010 by jakubsisak
Hello,
The only source of decent country-wide coverage of 1 arc-second (0.75 - 3arc) or roughly 30m resolution dem in Canada seems to be GeoBase (http://www.geobase.ca/geobase/en/index.html)

Unfortunately, this is the only dem I am NOT ABLE to produce smooth contours and hillshade from. The contours come out jagged (much like stairs almost as if the contour followed around 30m pixels) and the resulting hillshade appears as if it was forming platforms. (see attached)

I never have any issues with other dem; SRMT, LiDAR, LIO (Ontario). 

Can someone provide a suggestion?

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