Expedition Navigation Software » Grib problem

Fredrik · 5/19/2019 3:10 am

I just got my self a premium service for Grib fils (baltic sea) however I can not view them in expedition, can you see any reason why this file does not work? I've used files from the same source in the past.

https://xsrimages.s3.amazonaws.com/0a/Baltic.grb

https://xsrimages.s3.amazonaws.com/0a/Gotland.grb

Nick · 5/19/2019 2:10 pm

What is the data source? It seems to be using a reserved country code.

Exp is rejecting the data because it says it is using a custom table. I this this is an error in the file encoding and it is actually using the standard international exchange table. That is easy to allow for in Exp.

Last edited by Nick (5/19/2019 2:11 pm)

Fredrik · 5/19/2019 11:35 pm

The data is directly from the swedish metrological institute, SMHI. The data is avalible under subscription from the link below

https://www.smhi.se/professionella-tjanster/professionella-tjanster/gribfiler-for-seglare

They cover three areas, gribfiles avalible at the links below (Model is Arome, resolution is 2,5 km)

http://vader.se/grib/Baltic.grb
http://vader.se/grib/Gotland.grb
http://vader.se/grib/Westcoast.grb

Let me know if you need a password.

Do I ask them to change anything, or can you help me "open up" for it in expedition? We have three day ocean race in the area coming up in a week =)

Many thanks!
Fredrik

Nick · 5/20/2019 1:57 pm

The problem with these files is that they says they are using a custom parameter table, but I think they are using the standard international exchange format.

It is also using a restricted value for the country code instead of 82 or 83 for SMHI, which is odd.

If you do talk to them, you could mention both items.

I will try to do a release today to handle this.

Nick · 5/20/2019 3:43 pm

I have posted an update to Exp that supports these grib files, but it would be good to get them fixed.

Fredrik · 5/20/2019 11:57 pm

Super and thanks, so much, I'll send the feedback back to SMHI

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5/19/2019 3:10 am #1

Grib problem

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Re: Grib problem

5/19/2019 11:35 pm #3

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5/20/2019 1:57 pm #4

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5/20/2019 3:43 pm #5

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5/20/2019 11:57 pm #6

Re: Grib problem

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