dset nnrp incomplete?

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j1d1w1
Posts: 34
Joined: Wed Mar 13, 2013 2:02 am

dset nnrp incomplete?

Post by j1d1w1 » Mon Mar 16, 2015 6:35 pm

Hi,

I'm interested to run WRFEMS (in a downscaling mode, driven by NCEP1 initial and boundary conditions) for a period of a few days in 1975, focusing on a small domain around New Zealand. At the ems-prep stage

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ems_prep --dset nnrp --analysis --date 19750801 --cycle 00 --domains 1,2,3,4 --length 24
I get the message
There were problems acquiring the nnrp2d data files for model initialization. Some of the initialization or boundary condition files are unavailable.
Given that the global reanalysis goes back to 1948 or so, I figured I ought to be able to procure the needed files and put them in the appropriate "grib" directory. From rda.ucar.edu I was able to get hold of a file which I opened with Archive Manager to get files like (for example) "pgb.f0075082818", which I could visualize in GrADS (after file preparation using grib2ctl and gribmap). However it's not clear to me that these are the files I need for WRFEMS, because when I run

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ems_prep --dset nnrp --local --analysis --date 19750731 --cycle 00 --domains 1,2 --length 12
I get messages like "Missing File: ..../grib/1975082818.nnrp3d.grb2".

I may be way off base here. Any suggestions? Thanks, John

Canuck64
Posts: 34
Joined: Tue Sep 04, 2012 10:41 pm
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Re: dset nnrp incomplete?

Post by Canuck64 » Mon Mar 16, 2015 11:12 pm

You need to have both nnrp3d and nnrp2d grib files in order for your model simulation to work.

j1d1w1
Posts: 34
Joined: Wed Mar 13, 2013 2:02 am

Re: dset nnrp incomplete?

Post by j1d1w1 » Tue Mar 17, 2015 12:16 am

Thanks... do you know how I need to source the nnrp3d files?

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