Digital Elevation Map

Tracklog, POI and error feedback for Johor. Mapper: Robo & Gerkeng

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Desmondlwa
Posts: 1
Joined: Thu Apr 12, 2012 4:59 pm

Digital Elevation Map

Postby Desmondlwa » Thu Apr 12, 2012 5:02 pm

Hi there.... Can I ask whether is the DEM (Digital Elevation Map) of Johor state (Malaysia) available to the public ? I am trying to get one .... Anyone out there can help me ?

user66
Posts: 160
Joined: Thu May 28, 2009 9:28 am
Location: kwala lumpur
Contact:

Re: Digital Elevation Map

Postby user66 » Tue Apr 17, 2012 9:03 am

you can purchase them from JUPEM

or

you can download free from CGIAR - refer link below:

http://www.cgiar-csi.org/data/elevation ... tabase-v41

dayojah
Contributor
Posts: 252
Joined: Sun Mar 22, 2009 5:29 pm
Location: KL

Re: Digital Elevation Map

Postby dayojah » Tue Apr 17, 2012 11:27 pm

You can get two for free:
The 3 arc second (90m) resolution srtm3 derived from a Shuttle radar mission long ago and since cleaned up a bit.
The 1 arc second (30m) ASTER data from a Japanese satellite. This is optically generated and has a lot of glitches due to clouds and shadows.

Both of these are canopy maps, reading tree tops and building roofs, which is fine for radio coverage prediction.
If you want ground height you have to go to JUPEM or (expensive) commercial providers. JUPEM maps are classified and you have to get permission to have them.


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