This package is:

Copyright (c) 2012 Jens Thiele <karme@karme.de>

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

3. Neither the name of the authors nor the names of its contributors
   may be used to endorse or promote products derived from this
   software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The SRTM data downloaded by this package is according to:
http://www2.jpl.nasa.gov/srtm/mou.html
"
  Terrain height data greater than or equal to three seconds                                     
  of arc latitude and longitude (ie. Level-1 data sets)                                          
  generated from the SRTM will be released and distributed                                       
  without restrictions.                                                                          
"

The GMTED2010 data downloaded by this package is according to:
http://topotools.cr.usgs.gov/GMTED_viewer/gmted2010_fgdc_metadata.xml
"
<citation>
<citeinfo>
<origin>U.S. Geological Survey (USGS) Earth Resources Observation
&amp; Science (EROS) Center</origin>
<pubdate>2011</pubdate>
<title>GMTED2010</title>
<geoform>raster digital data</geoform>
</citeinfo>
</citation>

<accconst>No restrictions, All GMTED2010 data products are publically
available. Any acquisition or use of these data signifies a user's
agreement to comprehension and compliance of the USGS Standard
Disclaimer. Ensure all portions of metadata are read and clearly
understood before using these data in order to protect both user and
USGS interests. Please refer to http://www.usgs.gov/privacy.html for
the USGS disclaimer.</accconst>
    
<useconst>Although the USGS is making these data available to others
who may find the data of value, USGS does not warrant, endorse, or
recommend the use of these data for any given purpose. The user
assumes the entire risk related to the use of these data. USGS is
providing these data "as is", and USGS disclaims any and all
warranties, whether expressed or implied, including (without
limitation) any implied warranties of merchantability or fitness for a
particular purpose. In no event will USGS be liable to you or to any
third party for any direct, indirect, incidental, consequential,
special, or exemplary damages or lost profits resulting from any use
or misuse of these data. Acknowledgement of the U.S. Geological Survey
would be appreciated in products derived from these data. Any user who
modifies the data is obligated to describe the types of modifications
they perform. User specifically agrees not to misrepresent the data,
nor to imply that changes made were approved or endorsed by the
USGS.</useconst>
"
