plotting pressure perturbations

[Heiner Körnich]

Morgan,
I do not know what you have done, but using a script is a good idea.
Of course, you have to replace 'pressure' with your variable name and
put in the right number of time steps. In scripts you have to keep the
quotation marks. But you do not need subroutines, just this in a file. I
have added the time setting, so pertp is defined for all time steps.

'define meanp=ave(pressure,t=1,t=100)'
'set t 1 100'
'define pertp=pressure-meanp'

good luck,
Heiner


Morgan Silverman wrote:

>Heiner,
>Thank you for your help. That makes a lot of sense. My question now is
>where exactly do I need to do that. I tried just defining them in my
>script but it said the variable pertp was not a variable or function name.
>That made me wonder if i actually had to go into the subroutines and add
>pertp as a variable. Do you know? Thanks
>-Morgan
>
>
>
>
>>Hi,
>>
>>just define the time mean and remove it from your data:
>>'define meanp=ave(pressure,t=1,t=100)'
>>'define pertp=pressure-meanp'
>>
>>Hope it will help,
>>Heiner
>>
>>Morgan Silverman wrote:
>>
>>
>>
>>>I would like to plot the pressure perturbations of 2D flow over a 1km
>>>mountain. When I try to plot the pressure now it just plots the pressure
>>>levels which vary very little during time. Is there a way I can plot the
>>>change in pressure.
>>>
>>>
>>>
>>>
>>>
>>>
>>--
>>Heiner Körnich
>>Dept. of Meteorology                    Tel:    +46 8 164333
>>Stockholms University
>>S-106 91 Stockholm, Sweden              Email:  heiner at misu.su.se
>>
>>
>>
>
>
>Morgan Silverman
>Graduate Research Assistant
>Department of Marine, Earth and Atmospheric Sciences
>North Carolina State University
>
>
>
>

--
Heiner Körnich
Dept. of Meteorology                    Tel:    +46 8 164333
Stockholms University
S-106 91 Stockholm, Sweden              Email:  heiner at misu.su.se