[gradsusr] Setting z level based on 'if' statements

L.B. bcbass2989 at gmail.com
Thu Feb 18 17:12:13 EST 2016


Bingo, that did it.

Thanks

*-------*

*William (L.B.) LaForce*Meteorologist
www.tornadoinsanity.com

On Thu, Feb 18, 2016 at 4:44 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> Ah, I see I missed something before.
>
> You have defined inHgt as a field rather than a scalar. It's not a script
> variable since you enclosed it in quotes. You'd have to display minHgt at a
> single point to get a single value, then use sublin and subwrd to extract
> that value and save it as a script variable. Then proceed as before
> (keeping the if statements out of quotes).
>
> Jeff
>
> On Thu, Feb 18, 2016 at 3:03 PM, L.B. <bcbass2989 at gmail.com> wrote:
>
>> Jeff, Yes, things are progressing well.
>>
>> I tried removing the quotes but that didn't seem to work either. I set
>> the minHgt to a value myself and tried running the script (that way I knew
>> which level it should be), but when I did 'q dims', the z level was still
>> at 1. When I ran 'q define', the only defined variable was minHgt. botzlev
>> wasn't in the list. That SET error went away, but im not sure if that line
>> even ran because the level was still at 1.
>>
>> *-------*
>>
>> *William (L.B.) LaForce*Meteorologist
>> www.tornadoinsanity.com
>>
>> On Thu, Feb 18, 2016 at 3:36 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:
>>
>>> Hey, L.B., glad to see you are back in the game! Hope all is well.
>>>
>>> If you remove the quotes around the commands within each if statement, I
>>> think that will solve your problem. As you have written the code, you are
>>> telling grads to define a new field with a constant value of 1, 2, 3,...
>>> rather than defining a script variable, which is what you appear to want.
>>>
>>> Jeff
>>>
>>> On Thu, Feb 18, 2016 at 2:32 PM, L.B. <bcbass2989 at gmail.com> wrote:
>>>
>>>> Hello all,
>>>>
>>>> I am attempting to set the z level from a set of if statements.
>>>> Basically I am finding the lowest pressure level of a variable, then using
>>>> if statements to match it to the closest level available in the model
>>>> output and setting the z level based on that value. I am getting a SET
>>>> error when I try to do this. Can I not do it this way? I have posted my
>>>> script below:
>>>>
>>>>
>>>> 'minHgt=max(max(PRES0C,lon='lonmin',lon='lonmax'),lat='latmin',lat='latmax')'
>>>> 'minHgt=minHgt/100'
>>>>
>>>> if (minHgt > 1011.63)
>>>> 'botzlev = 1'
>>>> endif
>>>> if (minHgt <= 1011.63 & minHgt > 1005)
>>>> 'botzlev = 2'
>>>> endif
>>>> if (minHgt <= 1005 & minHgt > 995)
>>>> 'botzlev = 3'
>>>> endif
>>>> if (minHgt <= 995 & minHgt > 985)
>>>> 'botzlev = 4'
>>>> endif
>>>> if (minHgt <= 985 & minHgt > 977.5)
>>>> 'botzlev = 5'
>>>> endif
>>>> if (minHgt <= 977.5 & minHgt > 972.5)
>>>> 'botzlev = 6'
>>>> endif
>>>>
>>>> .
>>>> .
>>>> .
>>>> .
>>>>
>>>>
>>>> 'set z 'botzlev
>>>>
>>>>
>>>> Any help would be appreciated. Thank You!
>>>> *-------*
>>>>
>>>> *William (L.B.) LaForce*Meteorologist
>>>> www.tornadoinsanity.com
>>>>
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>> gradsusr at gradsusr.org
>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>
>>>>
>>>
>>>
>>> --
>>> Jeff Duda
>>> Graduate research assistant
>>> University of Oklahoma School of Meteorology
>>> Center for Analysis and Prediction of Storms
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
>> _______________________________________________
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>> gradsusr at gradsusr.org
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>>
>>
>
>
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
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