Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

I am in the process of writing my thesis on flood hazard preparedness and forecasting in South East Asia, specifically Thailand. My analysis requires a medium resolution (even better, high resolution) digital elevation model for Bangkok and vicinity areas. I really appreciate if anyone can point me out where I can find such data? My internet search so far returns not DEM data but only finished maps from different organizations.

share|improve this question
    
Have you looked into SRTM data? –  underdark Oct 1 '12 at 18:10
2  
SRTM data will probably be around 90m resolution in this area, to do any relevant hydrological modeling you really need to be at least 10m resolution, and ideally sub 2m. –  sgrieve Oct 1 '12 at 18:51
1  
There are sources of lidar data for Bangkok, but they are not free. I would be surprised if a lot of areas in SE Asia had not been flown. The challenge would be to convince a company/government department to give it to you for free. –  sgrieve Oct 1 '12 at 18:56
add comment

1 Answer 1

up vote 1 down vote accepted

I suggest Aster DEM for your purpose. You can download 30MX30M DEM from ASTER GDEM

share|improve this answer
    
Not entirely free, thought quality better than SRTM. –  Tomek Oct 2 '12 at 5:25
    
Thanks! I will try ASTER DEM. –  adfs Oct 2 '12 at 7:59
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.