Hi,
I'm slowly getting a headache from trying to find out wheter the use
of ASTER data (for hillshading) in the creation of CC-BY-SA licensed map
tiles is permissible or not.
There are people who say that ASTER is only free for science and
educational use. I used to think that too. But it's hard to find a good
statement about that.
From http://www.nasa.gov/topics/earth/features/20090629.html:
"NASA and Japan's Ministry of Economy, Trade and industry (METI)
released the Advanced Spaceborne Thermal Emission and Reflection
Radiometer (ASTER) Global Digital Elevation Model (GDEM) to the
worldwide public on June 29, 2009."
No license info on that page, but "release to the worldwide public" is
something different from "for academic purposes only", isn't it?
Then http://asterweb.jpl.nasa.gov/gdem.asp:
"As a contribution from METI and NASA to the Global Earth Observation
System of Systems (GEOSS), ASTER GDEM V2 data are available free of
charge to users worldwide from the Land Processes Distributed Active
Archive Center (LP DAAC) and J-spacesystems."
No license info again, but "free of charge to users wolrdwide". Hm.
Then https://lpdaac.usgs.gov/products/aster_policies gets interesting
but the language is somewhat twisted:
"ASTER Redistribution Policies for the General Public"
"ASTER Global DEM (GDEM) data are subject to redistribution and citation
policies. Before ordering ASTER GDEM data, users must agree to
redistribute data products only to individuals within their
organizations or projects of intended use, ..."
But this is about the *redistribution* of data, and I don't want to
redistribute - I want to make tiles from it. Further down ("Click here
for additional GDEM redistribution information") it says:
"The general principle is one of reversibility: If someone can recover
the original x-y-z values from the new product, then that new product
can NOT be re-distributed."
...
"What are some examples of derived products that are re-distributable?"
"2. Creating a slope map"
This all sounds as if I *can* download the data and use it for
hillshading as long as I don't redistribute the data itself. Doesn't it?
Bye
Frederik
--
Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33"
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