[RegCNET] Grid problem!

[Monica Santese]

Dear Faisal and Ha,
thank your for your reply...

I tested setting
 set lat "lat1" lat2"
set lon "lon1' "lon2"

before defining a1=ave(ave(aext8,z=1,z=18)*18,t=1,t=4) and 
a2=ave(ave(aext8,z=1,z=18)*18,t=1,t=4) but when I make

d a1-a2 I have:

Operation error:  Incompatable grids
  Dimension ranges aren't equivalent
  Dimension = 0
  1st grid range = 199 570   2nd = 183 554
  Error ocurred at column 6
DISPLAY error:  Invalid expression
  Expression = a2-a1


Shoul you suggest me what I have to do?

Thanks again

Monica


CMCC - Physics Department - University of Salento
via Arnesano - 73100 Lecce, Italy

e-mail: monica.santese at le.infn.it
phone:  +39-0832-297502 (office)
             +39-0832-297481 (laboratory)
fax:       +39 -0832-297505
******************************
----- Original Message ----- 
From: "Ho Thi Minh Ha" <hahtm at vnu.vn>
To: "Monica Santese" <monica.santese at le.infn.it>
Cc: "regcnet" <regcnet at lists.ictp.it>
Sent: Monday, July 05, 2010 3:52 PM
Subject: Re: [RegCNET] Grid problem!


> Dear Monica Santese,
>
> You should try this:
>
> 'open CHE.YYYYMMDD0100'  (file1)
> 'set lon lonstart lonend'         (e.g., lonstart, lonend are values of 
> start and end longitude,
> respecitively)
> 'set lat latstart latend'
> 'define a1=ave(ave(aext8,z=1,z=18)*18,t=1,t=4)'
> 'close 1'
>
> 'open CHE.YYYYMMDD0100'  (file2)
> 'set lon lonstart lonend'         (the same region as above)
> 'set lat latstart latend'
> 'define a2=ave(ave(aext8,z=1,z=18)*18,t=1,t=4)'
> 'd a1-a2'
>
> 'close 1'
>
> Hope it would work
>
> Best wishes,
> Ha
>
>
>> Dear users,
>>
>> I have two different files CHE that come from two different runs with 
>> different numbers of pixels:
>> One for iy=200 and jx = 200    and one for iy=185 and jx = 200.
>>
>> Now, if I want to plot the aerosol optical depth map of the differences 
>> between the AOD from the
>> first run and AOD from the second one using :
>> a1=ave(ave(aext8,z=1,z=18)*18,t=1,t=4) and
>> a2=ave(ave(aext8,z=1,z=18)*18,t=1,t=4)
>> dif=a1-a2
>>
>> I have the error message:
>>
>>
>> Operation error:  Incompatable grids
>>   Dimension ranges aren't equivalent
>>   Dimension = 0
>>   1st grid range = -15 756   2nd = 1 771
>>   Error ocurred at column 6
>> DEFINE error:  Invalid expression.
>>
>>
>> Is there a way to plot the AOD differences for a lat-lon area that are 
>> common to the two files
>> CHE?
>>
>> Thank you fory your help!!
>>
>>
>> PhD.Monica Santese
>> CMCC - Physics Department - University of Salento
>> via Arnesano - 73100 Lecce, Italy
>>
>> e-mail: monica.santese at le.infn.it
>> phone:  +39-0832-297502 (office)
>>              +39-0832-297481 (laboratory)
>> fax:       +39 -0832-297505
>> ******************************_______________________________________________
>> RegCNET mailing list
>> RegCNET at lists.ictp.it
>> https://lists.ictp.it/mailman/listinfo/regcnet
>
>
> Ho Thi Minh Ha, PhD.
>
> Department of Meteorology, Hanoi University of Sciences
> 334 Nguyen Trai street, Thanh Xuan district, Hanoi city, VIETNAM
> Phone: +84435583811
> Email: hahtm at vnu.vn
> or      ha_meteo at yahoo.com
>
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