SRTM HGT raster in ArcGIS 10 - how to convert

Question

I think I am missing something here. I have found older (~8 yrs) threads about needing to rename the file extension of the .hgt files obtained from the SRTM data site to .bil and then creating header files for each raster. Is this still the process for using SRTM data in ArcMap? I've found a few older programs (GDAL, LandSerf, various .exe's) to convert but haven't had any luck with them. Since these posts and applications are so old I'm wondering if I have missed a more recent simple solution. I have downloaded V2 30 m SRTM data from the data access site http://dds.cr.usgs.gov/srtm/ as well as .bil files directly from USGS's Earth Explorer.  Any guidance is appreciated. Thanks.
Matt

VijaiLal2 · Answer

Hi Jan,

Did you manage to bring .hgt data in ArcGIS 10? . I could bring it, Add Data > xyz.hgt , that's it. maybe i am using ArcGIS 10.2.2. Try updating your lic.

If you need to group your input raster based on some elevation then use "calculate statics"  available in Data Management > Raster > Raster Properties .. Don't ask me the technical reason behind this, sorry..

I know its too late to answer you,  but still worth sharing my experience for newcomers..

Regards,

Vijai Lal

Jan-HendrikKeet · Answer

Hi johngphillips,

Please tell me how you did it. I am having the same problem. Downloaded some SRTM data (in .hgt format) and ArcMAP 10 doesn't want to open it (even though Carrie says it should be able to open in ArcMAP 10). I only get the message "Invalid raster dataset. Failed to create raster layer".

After renaming it to .bil and creating the header file, I am no better off. Please tell me what you did.

Regards,
Jan

JohnPhillips · Answer

Figured it out on my own, but thank you.