[talk-ph] DAICHI/ALOS derived 30m DEM available to the public

[maning sambale]

Quick and dirty comparison

alos_30m - red
aster_v2 - green
srtm_30m - blue

On flat areas, aster is noisy. srtm and alos seems to agree more but
srtm seems to have consistent elevation along riverbanks/water bodies.
: https://farm1.staticflickr.com/415/19079073641_14aaae88b4_c.jpg
On rugged terrain, all data seems to be consistent, except that alos
still has a lot of data holes:
https://farm1.staticflickr.com/302/18889672429_a38f11e32a_c.jpg

A rigorous statistical evaluation should be done, but for now, I'll
stick to srtm 30 (for areas that don't have holes).

On Tue, Jun 23, 2015 at 11:57 AM, Leonard Soriano
<banito_pinoy at yahoo.com> wrote:
> It will be also interesting to compare this product with the 30m DEM of SRTM
> and Aster.
>
> --bunny
>
>
>
> On Tuesday, 23 June 2015, 11:42, maning sambale <emmanuel.sambale at gmail.com>
> wrote:
>
>
> FYI,
> Might be of interest to those doing topographic mapping.
>
> DAICHI/ALOS derived 30m DEM available to the public:
> http://www.eorc.jaxa.jp/ALOS/en/aw3d30/index.htm
>
>
>
> --
> cheers,
> maning
> ------------------------------------------------------
> "Freedom is still the most radical idea of all" -N.Branden
> https://epsg4253.wordpress.com/
> http://twitter.com/maningsambale
> ------------------------------------------------------
>
> _______________________________________________
> talk-ph mailing list
> talk-ph at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-ph
>
>



-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
https://epsg4253.wordpress.com/
http://twitter.com/maningsambale
------------------------------------------------------