Til info så klarte jeg nå og laste ned dataene. Må ha vært en midlertidig feil. <div><br></div><div>Hva er det du vil fram til med teksten du limte inn Trond? Siden slope map er ok, bør det vel være ok å bruke disse dataene i sammeheng med OSM kart? Eller?</div>
<div><br></div><div>Espen</div><div><br></div><div><br><br><div class="gmail_quote">2011/10/19 Trond Michelsen <span dir="ltr"><<a href="mailto:trondmm-nuug@crusaders.no">trondmm-nuug@crusaders.no</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On Wed, Oct 19, 2011 at 10:58:14AM +0200, Knut Arne Bjørndal wrote:<br>
> NASA har publisert et nytt høydedatasett generert fra ASTER-data:<br>
> <a href="http://www.nasa.gov/topics/earth/features/aster20111017.html" target="_blank">http://www.nasa.gov/topics/earth/features/aster20111017.html</a><br>
><br>
> Lisensen ser enkel og grei ut, fra<br>
> <a href="https://lpdaac.usgs.gov/about/citing_lp_daac_and_data" target="_blank">https://lpdaac.usgs.gov/about/citing_lp_daac_and_data</a>:<br>
> «These data are not copyrighted»<br>
><br>
> De vil gjerne ha attribution, men i motsetning til tidligere<br>
> distribuerte data fra Japan er det ingen begrenset liste over hva man<br>
> kan bruke det til.<br>
<br>
</div><a href="https://lpdaac.usgs.gov/lpdaac/products/aster_policies" target="_blank">https://lpdaac.usgs.gov/lpdaac/products/aster_policies</a><br>
<br>
ASTER Redistribution Policies for the General Public<br>
Users of ASTER Global DEM Data Received from the LP DAAC<br>
<br>
ASTER Global DEM (GDEM) data are subject to redistribution and<br>
citation policies. Before ordering ASTER GDEM data, users must agree<br>
to redistribute data products only to individuals within their<br>
organizations or projects of intended use, or in response to disasters<br>
in support of the GEO Disaster Theme. When presenting or publishing<br>
ASTER GDEM data, users are required to include a citation stating,<br>
"ASTER GDEM is a product of METI and NASA."<br>
<br>
Because there are known inaccuracies and artifacts in the data set,<br>
please use the product with awareness of its limitations. The data are<br>
provided "as is" and neither NASA nor METI/ERSDAC will be responsible<br>
for any damages resulting from use of the data.<br>
<br>
Why are there restrictions on the redistribution of the ASTER GDEM?<br>
<br>
The ASTER GDEM is a joint contribution by NASA and the Ministry of<br>
Economy, Trade and Industry of Japan (METI) to the Global Earth<br>
Observation System of Systems (GEOSS). As such, both METI and NASA<br>
desire to understand the uses of the ASTER GDEM, expressed as one the<br>
GEOSS applications themes: disasters, health, energy, climate, water,<br>
weather, ecosystems, agriculture, or biodiversity. This requires both<br>
the registration of users, and restrictions on redistribution, to<br>
capture the intended use in terms of the GEOSS themes. These few<br>
restrictions on the ASTER GDEM commenced with the public distribution<br>
of tiles on June 29, 2009 and will continue through the life of the<br>
mission. Public access to the ASTER GDEM requires registration and<br>
acknowledgement of these restrictions at both the US and Japan server<br>
locations. All registration is kept confidential and is used solely<br>
for distribution metrics and possible notification of updates to the<br>
ASTER GDEM.<br>
<br>
What restrictions apply to the redistribution of data?<br>
<br>
The general principle is one of reversibility: If someone can recover<br>
the original x-y-z values from the new product, then that new product<br>
can NOT be re-distributed. This can also be defined as lossless<br>
recovery.<br>
<br>
What are some examples of derived products that can NOT be<br>
re-distributed?<br>
<br>
1. Transforming the data from GeoTIFF format to ESRI format<br>
2. Mosaicking or subsetting the data at the native (1 arc-second)<br>
or better resolution to serve up areas different than the<br>
original 1x1 degree tiles<br>
3. Changing the units from meters to feet<br>
<br>
What are some examples of derived products that are re-distributable?<br>
<br>
1. Reprojection that involved re-sampling, including nearest<br>
neighbor in cases where the reprojection involves more than a simple<br>
translation of an integer number of GDEM pixels<br>
2. Creating a slope map<br>
3. 3-D perspective visualizations<br>
<br>
Can "flyover" movies created using ASTER GDEM data be re-distributed?<br>
<br>
Flyover movies may be re-distributed if the final product is produced<br>
in a format that will not allow the recovery of the original data<br>
(e.g., avi, Quicktime, wmv).<br>
<br>
Can images created for publication or Web 2.0 applications (e.g.,<br>
Wikipedia) using ASTER GDEM data be re-distributed?<br>
<br>
Images that are created using GDEM data may be re-distributed through<br>
publications or social media applications. Papers citing such articles<br>
may be re-distributed as well.<br>
<font color="#888888"><br>
--<br>
Trond Michelsen<br>
</font><div><div></div><div class="h5">_______________________________________________<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>Mer om meg på:<br><a href="http://about.me/espenisaksen" target="_blank">http://about.me/espenisaksen</a><br><a href="http://no.linkedin.com/in/espenisaksen" target="_blank">http://no.linkedin.com/in/espenisaksen</a><br>
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