Error in downloading DEM

[mhotalebi]

I am experiencing a RuntimeError when trying to download and recognize DEM and mask files using ARIAtools. Despite configuring the necessary settings and files, I encounter an error indicating that the DEM file is not recognized as a supported file format.

Configuration Steps:
Created a .netrc file with my Earthdata credentials and use !chmod 600 $HOME/.netrc
Created a .topoapi file as per the ARIAtools documentation and use !chmod 600 $HOME/.topoapi
Changed settings on the ASF site to allow DEM downloads.
Execution Steps:
Run the ARIAtools script to download the mask and DEM file.
Actual Results
The following error is thrown:
RuntimeError: `./DEM/SRTM_3arcsec_uncropped.tif' not recognized as a supported file format.

[EJFielding]

The ARIA-tools package requires you to get an API key from the OpenTopography site (https://opentopography.org/) and put that key into the $HOME/.topoapi file. The error you are getting is usually caused by the lack of the OpenTopography API key.

[mhotalebi]

Thanks for your response!

Just to clarify, I did follow the ARIAtools documentation and created the .topoapi file as mentioned. I also set the permissions using !chmod 600 $HOME/.topoapi. Additionally, I have carefully followed all the procedures outlined in the Data_Access_Accounts.ipynb Jupyter notebook.

Please let me know if there's anything else I might have missed or if you need more details about my setup.

Best regards,

[EJFielding]

@mhotalebi Did you go to the OpenTopography site, register for an account and generate an OpenTopography API key, and then copy that API key into your $HOME/.topoapi file? The API key should look something like this: 7698c9963edee3a1dc1c8912daxxxxx (I changed the last hex characters to x).

[mhotalebi]

Thanks for following up!

Yes, I did register for an account on the OpenTopography site, generated an OpenTopography API key, and copied it into my $HOME/.topoapi file. The API key looks similar to the format you mentioned.

Despite following these steps, I’m still encountering issues. Any further guidance or troubleshooting steps would be greatly appreciated.

[EJFielding]

The next troubleshooting step is to look at the file ./DEM/SRTM_3arcsec_uncropped.tif. It is likely a text file that contains the error message that ARIA-tools got when it tried to do the download. The error you saw reported is that the file is not a valid GeoTIFF, so it is likely a text file.

[mhotalebi]

Thank you for your suggestion. I checked the ./DEM/SRTM_3arcsec_uncropped.tif file, and it indeed contains the following error message:

Error: API Key required for access. Please register for an API key at www.opentopography.org

I have already registered for an API key and added it to the .topoapi file with the following commands in terminal:
echo "80902dfc83e331…" > $HOME/.topoapi
chmod 600 $HOME/.topoapi
I removed last part of API Key and use … at the end of it.
I verified that the API key is correctly stored by running cat $HOME/.topoapi, and it shows the API key as expected.
Additionally, I tried with another registration but it didn’t work either. I also use environment your team provide.
Despite these efforts, the error persists.

[sssangha]

@mhotalebi , thanks for bringing this to our attention. I think this particular error may be associated with data migration involving source geoid URLs (see this discussion).

I've just pushed some changes to the ARIA-tools dev branch to capture the necessary updates to successfully access DEMS. Please let me know if this resolves this issue on your end.