GRIB Files

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Dave Exton
Member
Posts: 99
Joined: Tue Aug 31, 2004 9:17 pm
Location: Bristol, UK

GRIB Files

Post by Dave Exton »

Hi everyone! Can anybody tell me if the GRIB facility is working in the new version yet? I've delved into GRIB downloading, very superficially, and wondered if anyone had any wisdom to impart :-)
Thanks.
Tim Vasquez
Administrator
Posts: 541
Joined: Sat Nov 22, 2003 10:47 pm

Re: GRIB Files

Post by Tim Vasquez »

Hi Dave,

I use the GRIB options all the time. In Digital Atmosphere I import the RDPS Sea Level Pressure & Thickness for the background isobars on Forecast Lab. I've been doing it 3 times a week since maybe late 2021 when I added the functionality.

I would advise not trying to do anything too complicated with the GRIB functionality, but most of the defaults should work fine for basic charts. I'm not sure if any ECMWF HRES data is available anywhere (whatever happened to their Open Access policy anyway?) but if it shows up somewhere I will add it.
papuga
Junior Member
Posts: 2
Joined: Sun Aug 24, 2025 7:59 pm

Re: GRIB Files

Post by papuga »

Hi Tim,

I'm pulling my hair out with the Grib portion of DA. No matter what I do, whether I try to download a Grib file, or retrieve one, the parameter dropdown never, ever populates with the data. I set up Windows Sandbox on Windows 11 workstation, installed DA 3.50 pro in the sandbox and the Grib files work perfectly. I have spent the better part of the day trying to analyze what is running in the normal machine that DA doesn't like.

For now, I can live with running in the sandbox, it's just a pain if the computer has to be restarted, or I accidently close the sandbox, I have to reinstall DA.

When it runs, the Gribs work beautifuly.

Any ideas what could be causing this. I know it's a local, machine issue if it runs in the sandbox. I just cannot see for the life of me what could be causing this.
Tim Vasquez
Administrator
Posts: 541
Joined: Sat Nov 22, 2003 10:47 pm

Re: GRIB Files

Post by Tim Vasquez »

Papuga, if you can give a detailed step by step description of the issue with specifics I will try to look at it in the compiler. Unfortunately I can't debug anything from general descriptions, but I appreciate knowing when there's an issue going on.

Tim
papuga
Junior Member
Posts: 2
Joined: Sun Aug 24, 2025 7:59 pm

Re: GRIB Files

Post by papuga »

Hi Tim,

Thank you for your reply.

Here's what's happening. When running DA on the normal, unsandboxed PC, clicking on step 1b allows me to select a downloaded GRIB file. I get the confirmation dialog box that the file was selected. Step 2, the dropdown does not populate with a list of parameters contained within the GRIB.

See this image here https://imgur.com/a/e2SEyYh

When operating inside the Windows sandbox, repeating the same process yields a list of parameters in the step 2 drowdown box.

For now, my workaround using the Sandbox does function. I have even written a script that will automatically create the sandbox, install DA, copy my DA scripts to the working sandbox and configure my internet security certificate for my firewall. It's an extra step, but it works.

I'm more than happy to assist in troubleshooting this for the benefit of the community. I am suspecting that it has something to do with the very slight difference between windows 11 pro and windows 11 workstation. Running inside the sandbox creates an instance of windows 11 enterprise. When I get some time, my next plan is to create either a Hyper-V or VMWare installatoin of Windows 11 Enterprise and try DA there. If it works, then it's definately something to do with the workstation version of Windows. If it doesn't I have no clue.

Cheers!

Ed
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