[NUUG kart] ASTER DEM fra NASA

[Espen Isaksen]

Til info så klarte jeg nå og laste ned dataene. Må ha vært en midlertidig
feil.

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?

Espen



2011/10/19 Trond Michelsen <trondmm-nuug at crusaders.no>

> On Wed, Oct 19, 2011 at 10:58:14AM +0200, Knut Arne Bjørndal wrote:
> > NASA har publisert et nytt høydedatasett generert fra ASTER-data:
> > http://www.nasa.gov/topics/earth/features/aster20111017.html
> >
> > Lisensen ser enkel og grei ut, fra
> > https://lpdaac.usgs.gov/about/citing_lp_daac_and_data:
> > «These data are not copyrighted»
> >
> > De vil gjerne ha attribution, men i motsetning til tidligere
> > distribuerte data fra Japan er det ingen begrenset liste over hva man
> > kan bruke det til.
>
> https://lpdaac.usgs.gov/lpdaac/products/aster_policies
>
> ASTER Redistribution Policies for the General Public
> Users of ASTER Global DEM Data Received from the LP DAAC
>
> 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, or in response to disasters
> in support of the GEO Disaster Theme. When presenting or publishing
> ASTER GDEM data, users are required to include a citation stating,
> "ASTER GDEM is a product of METI and NASA."
>
> Because there are known inaccuracies and artifacts in the data set,
> please use the product with awareness of its limitations. The data are
> provided "as is" and neither NASA nor METI/ERSDAC will be responsible
> for any damages resulting from use of the data.
>
> Why are there restrictions on the redistribution of the ASTER GDEM?
>
> The ASTER GDEM is a joint contribution by NASA and the Ministry of
> Economy, Trade and Industry of Japan (METI) to the Global Earth
> Observation System of Systems (GEOSS). As such, both METI and NASA
> desire to understand the uses of the ASTER GDEM, expressed as one the
> GEOSS applications themes: disasters, health, energy, climate, water,
> weather, ecosystems, agriculture, or biodiversity. This requires both
> the registration of users, and restrictions on redistribution, to
> capture the intended use in terms of the GEOSS themes. These few
> restrictions on the ASTER GDEM commenced with the public distribution
> of tiles on June 29, 2009 and will continue through the life of the
> mission. Public access to the ASTER GDEM requires registration and
> acknowledgement of these restrictions at both the US and Japan server
> locations. All registration is kept confidential and is used solely
> for distribution metrics and possible notification of updates to the
> ASTER GDEM.
>
> What restrictions apply to the redistribution of data?
>
> 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. This can also be defined as lossless
> recovery.
>
> What are some examples of derived products that can NOT be
> re-distributed?
>
>   1. Transforming the data from GeoTIFF format to ESRI format
>   2. Mosaicking or subsetting the data at the native (1 arc-second)
>      or better resolution to serve up areas different than the
>      original 1x1 degree tiles
>   3. Changing the units from meters to feet
>
> What are some examples of derived products that are re-distributable?
>
>   1. Reprojection that involved re-sampling, including nearest
>      neighbor in cases where the reprojection involves more than a simple
>      translation of an integer number of GDEM pixels
>   2. Creating a slope map
>   3. 3-D perspective visualizations
>
> Can "flyover" movies created using ASTER GDEM data be re-distributed?
>
> Flyover movies may be re-distributed if the final product is produced
> in a format that will not allow the recovery of the original data
> (e.g., avi, Quicktime, wmv).
>
> Can images created for publication or Web 2.0 applications (e.g.,
> Wikipedia) using ASTER GDEM data be re-distributed?
>
> Images that are created using GDEM data may be re-distributed through
> publications or social media applications. Papers citing such articles
> may be re-distributed as well.
>
> --
> Trond Michelsen
> _______________________________________________
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> kart at nuug.no
> http://lists.nuug.no/mailman/listinfo/kart
>



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