[Freegis-list] Yukon 90 meter DEMs available for download

[Matt.Wilkie]

> hope you had nice christmas days!

And to you and yours!

> > Yukon Renewable Resources has 90 meter Digital Elevation Models
...
> Thanks Matt, I have added this one to FreeGIS (it is the 75th entry!).
> Matt, is there a link between your 90m DEM data and
> the 180 DEM data already in FreeGIS?

There is no direct link other than I created both of them. The 180m 
DEM was generated from an older and more error-prone version of the 
base data, utilising different software, while I was working for a 
different organization, and using a *much* slower computer! :)

The 180m DEM should be considered an inferior product and is not 
recommended for use unless you need a DEM at that pixel size and 
lack the facilities to resample the 90m DEM to ~200 meters.

I guess I should add all that to the 180m download page. :)


> I have described your license as Public Domain - is that correct?

Essentially. It is public domain with a non-binding entreaty to be 
courteous and responsible in crediting the source:

    "License Terms

    The DEMs are free, in both the sense of cost and of liberty. 
    You are free to use these DEMs in any way you see fit including
    commercial endeavours. It would be courteous to inform us what 
    you are doing with them and to credit the Yukon Renewable 
    Resources Geographic Information System or Yukon RRGIS where 
    applicable."


> > And for those who haven't been here already, please take the time
> > to visit http://members.home.net/freedata/ and help convince the
...
> To my mind this statement is true and can only underline Matts hint.
> (Probably all Canadians on this list are already aware of this :-)

Thanks for the added emphasis Jan. 

Cheers and a Happy New Year to All!



-matt
========================================
Matt Wilkie * GIS Technician * Yukon Renewable Resources GIS
http://renres.gov.yk.ca/pubs/rrgis/