Talk:Advanced Spaceborne Thermal Emission and Reflection Radiometer

What on earth does Nadir / Backward mean? It should be linked or explained in the article. --Ozhiker (talk) 09:40, 1 July 2009 (UTC)

There is a stub, ASTER GDEM, about the digital elevation model produced by this instrument. I suggest it be merged into this article until such time as there is enough information for it to be spun off as its own separate article. Awickert (talk) 12:31, 1 July 2009 (UTC)

:I've made the merge. LjL

::Thanks! Awickert (talk) 14:49, 1 July 2009 (UTC)

i agree, it's a stub on the same subject.

LordCirth (talk) 14:17, 1 July 2009 (UTC)

Is it necessary to have this factoid in the opening section? For those people who don't know what km stands for, a simple link to kilometre will inform them. Markb (talk) 11:47, 2 July 2009 (UTC)

:It's most definitely not necessary or desirable. LjL (talk) 13:55, 2 July 2009 (UTC)

:I'll removed it. Markb (talk) 12:16, 3 July 2009 (UTC)

::I have already. LjL (talk)

I think the expression "digital elevation model" in the text should be qualified with a "DTM" or "DSM"; I would do the mod myself, unfortunately I don't know the answer (and will have to find it outside Wikipedia...) --AlainR345^{Techno-Wiki-Geek} 19:41, 21 October 2013 (UTC)

Here's a clue from USGS validation report: "Recall that ASTER images record

the reflective surface, thus the derived elevations in GDEM v2 represent the height of

those imaged surfaces. In areas with dense, taller vegetation or built structures, the

derived ASTER elevation will represent the elevation of these features rather than ground

level." --AlainR345^{Techno-Wiki-Geek} 19:59, 21 October 2013 (UTC)

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