[talk-ph] Tubbataha is way off

[maning sambale]

Investigating on this further, I plotted the Tubbataha Reefs Natural
Park coordinates from RA 10067 [0] which corresponds closely in the
data in OSM (red outline is the plotted coordinates) [1].  Note that
this is a direct coordinate translation, I didn't bothered to convert
to PRS92 as mentioned in the RA, since I don't expect very large shift
from WGS84 to PRS92.

Other diving websites showing coordinates of Tubbataha features (i.e.
lighthouse, ranger station) also corresponds closely to the current
data in OSM.
Further, if you squint a little bit in the image, I loaded the MapBox
satellite layer and the reef is barely visible.

In short, the imagery from Bing is most likely wrong in this area.

[0] https://lists.openstreetmap.org/pipermail/talk-ph/2010-December/002792.html
[1] https://farm6.staticflickr.com/5570/15193057301_9d7d35fb10_o.png

On Wed, Sep 10, 2014 at 11:54 AM, maning sambale
<emmanuel.sambale at gmail.com> wrote:
> Not as bad as the PH one thousand bill [0], but, Tubbataha [1] seems
> way of from satellite imagery [2] by ~14 km.
>
> Free beer or a drink of your choice to someone who can verify with gps
> tracks. ;)
>
> [0] http://en.wikipedia.org/wiki/Philippine_one_thousand_peso_bill#mediaviewer/File:New_PHP1000_Banknote_%28Reverse%29.jpg
> [1] http://www.openstreetmap.org/way/280149159
> [2] https://farm4.staticflickr.com/3843/15008702547_903ca12979_o.png
>
>
> --
> cheers,
> maning
> ------------------------------------------------------
> "Freedom is still the most radical idea of all" -N.Branden
> wiki: http://esambale.wikispaces.com/
> blog: http://epsg4253.wordpress.com/
> ------------------------------------------------------



-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
------------------------------------------------------