[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 20041123: 20041122: GDVINT question

Hi again Steve,
I figured out the problem, and it wasn't with GDVINT. It stemmed from my lowering of the base state temperature for the newest version of WRF in the WRF to GEMPAK converter I'm using. That generated heights that were too low at all pressure levels, and I'm assuming that is what caused it to not interpolate correctly to 1000 mb. If I fix the base state temperature problem in the original conversion, the GDVINT program works correctly. 

Sorry for bothering you, and have a great holiday.

Thanks,
Mike

Michael J. Brennan
Graduate Research Assistant
Department of Marine, Earth and Atmospheric Sciences
North Carolina State University
Email: address@hidden
Phone: (919) 515-1447

Unidata Support wrote:

Michael,

Sounds like you have verified that all your levels
are present in the WRF file. Was just wondering in case the new version
had more parameters/times/levels and caused some previous MAXGRD
to be exceeded.

I could take a look at the file later next week after the holiday.

Steve CHiswell
Unidata User Support





From: Michael Brennan <address@hidden>
Organization: UCAR/Unidata
Keywords: 200411232032.iANKWo7j015139




Hi Steve,
I have the same full set of Eta levels in the output as I did at previous times. The only difference is that I'm converting output from a newer version of WRF, so maybe that is the problem. 

Thanks,
Mike

Michael J. Brennan
Graduate Research Assistant
Department of Marine, Earth and Atmospheric Sciences
North Carolina State University
Email: address@hidden
Phone: (919) 515-1447

Unidata Support wrote:


Michael,

The error message you see seems to indicate that GDCINT cannot
interpolate to 1000 mb because that level is not between available input levels. 

Is this file missing some lower levels that other files do have?

Steve Chiswell
Unidata User SUpport





From: Michael Brennan <address@hidden>
Organization: UCAR/Unidata
Keywords: 200411221536.iAMFas7j007324




Hi Steve,
I know from previous conversations that GDVINT has hardwired limits of the number of parameters and levels it will interpolate to. However, I'm having a strange problem now. I've been running GDVINT to convert WRF model output from the eta-level vertical coordinate to pressure coordinates, and its been working fine outputting pressure-level data 


from 1000 to 50 mb every 25 mb.
Now, suddenly, I'm having problems converting a particular output file, no matter how many pressure levels I tell it to interpolate too, I get errors at 1000 mb, even when I ask for output only every 50 mb to 100 or 200 mb. 

TMPK         not interpolated to level =  1000
HGHT         not interpolated to level =  1000
UWND         not interpolated to level =  1000
VWND         not interpolated to level =  1000
WWND         not interpolated to level =  1000
DWPK         not interpolated to level =  1000
QVAP         not interpolated to level =  1000
OMEG         not interpolated to level =  1000
Do you have any idea why this would happen? I figured that by reducing the number of pressure levels I asked for I could work around the hardwired limit. 

Thanks,
Mike
--
Michael J. Brennan
Graduate Research Assistant
Department of Marine, Earth and Atmospheric Sciences
North Carolina State University
Email: address@hidden
Phone: (919) 515-1447



--
****************************************************************************


<


Unidata User Support                                    UCAR Unidata Program


<


(303)497-8643                                                  P.O. Box 3000


<


address@hidden                                   Boulder, CO 80307


<


----------------------------------------------------------------------------


<
Unidata WWW Service http://my.unidata.ucar.edu/content/support 

<


----------------------------------------------------------------------------


<


NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.



--
**************************************************************************** <
Unidata User Support                                    UCAR Unidata Program <
(303)497-8643                                                  P.O. Box 3000 <
address@hidden                                   Boulder, CO 80307 <
---------------------------------------------------------------------------- <
Unidata WWW Service              http://my.unidata.ucar.edu/content/support  <
---------------------------------------------------------------------------- <
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.