Error in tropospheric delay correction

[Pavithra S L]

Hi everyone, I'm facing error in the tropospheric delay correction method. Can somebody help me out 

[Sven Borgstrom]

Hi Pavithra,

I suppose your issue is related to a missing download of *.grib files.

In this regard, I also had recently a problem in downloading them, but I fixed this changing the "$HOME/.cdsapirc" file (first line) from  https://cds-beta.climate.copernicus.eu/api into  https://cds.climate.copernicus.eu/api, otherwise you get an authentication code failure message (at least this was the error message I got).

Hope this can help to fix your problem.

Cheers,

Sven.

[Pavithra S L]

Thank you, i will try with suggested correct and let you know

[Pavithra S L]

Still facing the same issue

On Thursday, January 30, 2025 at 2:26:16 PM UTC+5:30 Sven Borgstrom wrote:

[Rowan Biessel]

Hi Pavithra,

I just ran into the same issue earlier this week, and the issue was related to the not-so-recent changes to the ECMWF API for downloading ERA5 data.
I fixed it eventually by updating ECMWF's cdsapi python package.  Somewhere, the old API URL was still being used.

e.g: mamba update cdsapi

It could also help to make sure your pyaps3 installation is up to date as well.

Echoing SVEN's advice, my $HOME/.cdsapirc file also looks like:
url: https://cds.climate.copernicus.eu/api
key: <my key>

Since the error message doesn't tell you what's actually wrong with the ERA5 download, its possible its another issue like an incorrect API key or a missing license.

Also, be sure to delete the empty ERA5.h5 file before trying to run the tropospheric correction again!

Best of luck,

Rowan

[Pavithra S L]

Hi, Rowan

 I have accepted the all the license and checked the api key also , still facing the same issue

with regards

Pavithra

[郑智鹏]

Hello, I'm also facing the same problem now. Have you solved it?

[郑智鹏]

Hello, I'm also facing the same problem now. Have you solved it?

在2025年1月31日星期五 UTC+8 12:41:17<Pavithra S L> 写道：

[Pavithra S L]

Hi, I solved this issue by updating the .cdsapirc file. I replaced it with the URL and API from the climate data store. This you can find in the

https://cds.climate.copernicus.eu/datasets   User guide>>API>>Setup the CDS API personal access token, This URL and API for linux users should be replaced in the .cdsapirc file

With regards,

Pavithra

[郑智鹏]

Thank you for your reply. I fiddled with it for a long time by myself but still had no idea how to use it. It's quite magical.

[Zhang Yunjun]

We have added the `tropo_pyaps3.py --debug-mode` to show the full error message related to the pyaps3 data downloading. Could you update your mintpy code to the latest development version, re-run with this option turned on, and show the full error message here for a better diagnose?

Please feel free to open a new GitHub issue if the issue persists.

Regards,

Yunjun

[Blanca Symmes]

Hello, I also have the same problem. What is the new page?

Best,

Blanca Symmes