[gradsusr] using EDEF to create an ensemble in Grads

Jeffrey Duda jdduda at iastate.edu
Tue Oct 5 13:11:08 EDT 2010


Is whatever reads the substitution strings case sensitive?

Jeff

On Tue, Oct 5, 2010 at 11:58 AM, Jennifer Adams <jma at cola.iges.org> wrote:

> Well, with templated data sets, if GrADS can't find the file for your
> requested time, it just gives missing data. So you should make sure that all
> the files exist where they are expected to and that the names match up
> correctly with your template substitution strings in your DSET entry.
> Another check is to write a descriptor for one member, without the edef and
> substituting YSU for %e and make sure that works.
> --Jennifer
>
> On Oct 5, 2010, at 12:43 PM, Jeffrey Duda wrote:
>
> Jennifer,
> Here's what my actual control file looks like (not just the output from 'q
> ctlinfo'):
>
> dset ^summer_%e_%y4-%m2-%d2_%h2:%n2.dat
> options  byteswapped template
> undef 1.e30
> title  OUTPUT FROM WRF V3.1.1 MODEL
> pdef 325 249 nps  163.030  375.118     -97.1640   23.0459518
> xdef 1021 linear -150.3   0.10381060
> ydef  489 linear   12.4   0.10381060
> zdef   26 linear 1 1
> tdef   61 linear 00Z14JUL2010      60MN
> edef    7 names YSU MYJ QNSE MYNN25 MYNN3 Pleim BouLac
> VARS   20
> U             26  0  x-wind component (m s-1)
> V             26  0  y-wind component (m s-1)
> W             26  0  z-wind component (m s-1)
> WW            26  0  omega (Pa s-1)
> PH            26  0  perturbation geopotential (m2 s-2)
> PHB           26  0  base-state geopotential (m2 s-2)
> P             26  0  perturbation pressure (Pa)
> PB            26  0  BASE STATE PRESSURE (Pa)
> Q2             1  0  QV at 2 M (kg kg-1)
> T2             1  0  TEMP at 2 M (K)
> PSFC           1  0  SFC PRESSURE (Pa)
> U10            1  0  U at 10 M (m s-1)
> V10            1  0  V at 10 M (m s-1)
> QVAPOR        26  0  Water vapor mixing ratio (kg kg-1)
> HGT            1  0  Terrain Height (m)
> RAINC          1  0  ACCUMULATED TOTAL CUMULUS PRECIPITATION (mm)
> RAINNC         1  0  ACCUMULATED TOTAL GRID SCALE PRECIPITATION (mm)
> PBLH           1  0  PBL HEIGHT (m)
> tc            26  0  Temperature (C)
> slp            1  0  Sea Levelp Pressure (hPa)
> ENDVARS
>
> You can see that 'options template' and the 'edef' line is in there.
>
> Jeff
>
> On Tue, Oct 5, 2010 at 11:34 AM, Jennifer Adams <jma at cola.iges.org> wrote:
>
>> Hi, Jeff --
>> You appear to have neglected to add 'options template' in your descriptor
>> file. Also, if all your ensembles are the same length and have the same
>> start time, you can simplify your edef as  'edef 7 names ysu myj ... boulac
>> '
>> --Jennifer
>>
>>
>>
>> On Oct 5, 2010, at 12:15 PM, Jeffrey Duda wrote:
>>
>> I wish to concatenate several separate sets of WRF output in which only
>> the PBL scheme is changed into an ensemble.  I edited a control file
>> accordingly, and made sure to place all binary files in the same directory.
>> However, when I open the control file and attempt to display any variables
>> (whether the e dimension is varying or not), I get the "cannot contour grid
>> - all undefined values" error.  What am I doing wrong?
>>
>> Here is the cltinfo:
>>
>> dset summer_%e_%y4-%m2-%d2_%h2:%n2.dat
>> title OUTPUT FROM WRF V3.1.1 MODEL
>> undef 1e+30
>> xdef 1021 linear -150.3 0.103811
>> ydef 489 linear 12.4 0.103811
>> zdef 26 linear 1 1
>> tdef 61 linear 00Z14JUL2010 60mn
>> edef 7
>> ysu 61 00Z14JUL2010
>> myj 61 00Z14JUL2010
>> qnse 61 00Z14JUL2010
>> mynn25 61 00Z14JUL2010
>> mynn3 61 00Z14JUL2010
>> pleim 61 00Z14JUL2010
>> boulac 61 00Z14JUL2010
>> endedef
>> vars 20
>> u  26  0  x-wind component (m s-1)
>> v  26  0  y-wind component (m s-1)
>> w  26  0  z-wind component (m s-1)
>> ww  26  0  omega (Pa s-1)
>> ph  26  0  perturbation geopotential (m2 s-2)
>> phb  26  0  base-state geopotential (m2 s-2)
>> p  26  0  perturbation pressure (Pa)
>> pb  26  0  BASE STATE PRESSURE (Pa)
>> q2  1  0  QV at 2 M (kg kg-1)
>> t2  1  0  TEMP at 2 M (K)
>> psfc  1  0  SFC PRESSURE (Pa)
>> u10  1  0  U at 10 M (m s-1)
>> v10  1  0  V at 10 M (m s-1)
>> qvapor  26  0  Water vapor mixing ratio (kg kg-1)
>> hgt  1  0  Terrain Height (m)
>> rainc  1  0  ACCUMULATED TOTAL CUMULUS PRECIPITATION (mm)
>> rainnc  1  0  ACCUMULATED TOTAL GRID SCALE PRECIPITATION (mm)
>> pblh  1  0  PBL HEIGHT (m)
>> tc  26  0  Temperature (C)
>> slp  1  0  Sea Levelp Pressure (hPa)
>> endvars
>>
>> Jeff Duda
>>
>> --
>> Jeff Duda
>> Iowa State University
>> Meteorology Graduate Student
>> 3134 Agronomy Hall
>> www.meteor.iastate.edu/~jdduda <http://www.meteor.iastate.edu/%7Ejdduda>
>>  _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>>  --
>> Jennifer M. Adams
>> IGES/COLA
>> 4041 Powder Mill Road, Suite 302
>> Calverton, MD 20705
>> jma at cola.iges.org
>>
>>
>>
>>
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>>
>>
>
>
> --
> Jeff Duda
> Iowa State University
> Meteorology Graduate Student
> 3134 Agronomy Hall
> www.meteor.iastate.edu/~jdduda <http://www.meteor.iastate.edu/%7Ejdduda>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>


-- 
Jeff Duda
Iowa State University
Meteorology Graduate Student
3134 Agronomy Hall
www.meteor.iastate.edu/~jdduda
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