Opened 5 months ago

Last modified 4 months ago

#321 new Defect

UNKNOWN METDATA FORMAT error while using NCEP data

Reported by: sannadate Owned by:
Priority: major Milestone:
Component: FP other Version: FLEXPART 10.4
Keywords: Cc:

Description

I am using NCEP wind fields(from http://rda.ucar.edu/datasets/ds093.0/) to run flexpartv10.4. However, the model is unable to detect the metdata format. The model works fine with ECMWF fields.

Any help is appreciated.
thanks

Change History (3)

comment:1 Changed 5 months ago by pesei

I am sorry but right now I have no time for this.
Have you checked whether your problem is already discussed in ticket:305 ?
If not, I think you could ask that question on the mailing list, you will not be the only person to use NCEP input data.

comment:2 Changed 4 months ago by mqzhang

In the flexpart source code, the gributils/class_gribfile_mod.f90 line 50, These are the official centre codes for NCEP and ECMWF in grib files.
INTEGER, PARAMETER :: CENTRE_NCEP = 7, CENTRE_ECMWF = 98

It uses center code to distinguish input data (https://apps.ecmwf.int/codes/grib/format/grib1/centre/0/). But in fact, the center code of NCAR/UCAR in the https://rda.ucar.edu/datasets/ds083.2 is 60. You may need to modify it.
That should be fixed by flexpart team.

comment:3 Changed 4 months ago by sannadate

Dear mqzhang,
Thanks for your comment. Yes, it solves the problem of metdata format detection.

But I ran into another error similar to https://www.flexpart.eu/ticket/305.

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