topic Re: SRTM Interpolation Trial Version in ArcGIS Spatial Analyst Questions

SRTM Interpolation Trial Version

YannickStachelscheid — Fri, 27 Feb 2015 17:05:52 GMT

Hey guys

I'm new to ArcGis and the general topic geo data.

I came to ArcGis because I need to interpolate the 90m SRTM data (Europe) and I found this post. I want to use the data later in a game I'm developing.

So I just downloaded the trial version of ArcGis and clicked a little bit through the Applications (ArcGlobe, ArcMap, ArcScene). But I can't find ArcGIS Spatial Analyst which was mentioned in the old post.

So is it possible to perform the SRTM interpolation with the trial version? If so, how can I do it?

Thanks for help and replies

Greetings from Germany

Re: SRTM Interpolation Trial Version

DanPatterson_Retired — Fri, 27 Feb 2015 19:04:04 GMT

If you go to the Customize menu, then select Extensions...if you have it, it can be toggled on. Most of the functionality is in Arctoolbox (little red tool on the toolbar)

Re: SRTM Interpolation Trial Version

SteveLynch — Fri, 27 Feb 2015 19:07:20 GMT

What interpolation are you trying to do? Fill in voids or resample it to a finer resolution?

Re: SRTM Interpolation Trial Version

YannickStachelscheid — Fri, 27 Feb 2015 19:51:07 GMT

Voids have already been filled because I'm using data from Coverage map viewfinderpanoramas.org , so I want a finer resolution

Re: SRTM Interpolation Trial Version

SteveLynch — Fri, 27 Feb 2015 20:50:33 GMT

You could simply use the Resample (in Data Management) tool and choose bilinear interpolation.

Re: SRTM Interpolation Trial Version

YannickStachelscheid — Sat, 28 Feb 2015 09:38:43 GMT

Thank you for that tip I resampled data from 90m to 30m, but how can I save the resampled data as .hgt again?

Re: SRTM Interpolation Trial Version

DanPatterson_Retired — Sat, 28 Feb 2015 12:03:39 GMT

from the help files on SRTM which means that you need to use arcobjects

Supported raster formats

So you will have to examine that documentation

Mission (SRTM)

The HGT format is used to store elevation data from the Shuttle Radar Topography Mission (SRTM). SRTM-3 and SRTM-1 v2 files can be displayed.

Single file—extension *.hgt

Read-only (Write—developer only