[gradsusr] How to regrid data using GrADS

[Hang]

Krishnamohan and other users,

Here's what I got when I used "re". GrADS seems do not know what is "re"

ga-> sdfopen /home2/h08hang/redata/uwnd10m.mon.mean.nc
Scanning self-describing file:  /home2/h08hang/redata/uwnd10m.mon.mean.nc
SDF file /home2/h08hang/redata/uwnd10m.mon.mean.nc is open as file 1
LON set to 0 360 
LAT set to -88.542 88.542 
LEV set to 0 0 
Time values set: 1948:1:1:0 1948:1:1:0 
E set to 1 1 
ga-> q file
File 1 : monthly mean u wind
  Descriptor: /home2/h08hang/redata/uwnd10m.mon.mean.nc
  Binary: /home2/h08hang/redata/uwnd10m.mon.mean.nc
  Type = Gridded
  Xsize = 192  Ysize = 94  Zsize = 1  Tsize = 756  Esize = 1
  Number of Variables = 1
    uwnd 0 -103 Monthly Mean of U-Wind
ga-> set lat -90 90
LAT set to -90 90 
ga-> set lon 0 360
LON set to 0 360 
ga-> set t 1 753
Time values set: 1948:1:1:0 2010:9:1:0 
ga-> set z 1
LEV set to 0 0 
ga-> define uwnd10m=re(uwnd,2.5,2.5)
Syntax Error:  Invalid Operand 
  're' not a variable or function name
  Error ocurred at column 1
DEFINE error:  Invalid expression. 


Any further suggestions or I have made something wrong??

Thanks a lot

Henry




________________________________
From: krishnamohan <krishmet at gmail.com>
To: GrADS Users Forum <gradsusr at gradsusr.org>
Sent: Sat, January 29, 2011 2:52:02 AM
Subject: Re: [gradsusr] How to regrid data using GrADS


Hai Henry,

Define a new variable such that

define new=re(uwnd,2.5,2.5)

it will work


-- 
Krishnamohan.K.S
Junior Research Fellow
Department Of Atmospheric Sciences
Cochin University of Science and Technology
Cochin,India


On Fri, Jan 28, 2011 at 8:02 PM, Hang <hang_hang2004 at yahoo.com.hk> wrote:

Hi, 
>
>
>I want to regrid my data and I am using GrADS Version 2.0.a3 (not opengrads in 
>windows). I have tried
> "regrid(uwnd,2.5,2.5)"   ,   " regrid2(uwnd,2.5,2.5)"       and   
> "re(uwnd,2.5,2.5)" . 
>
>
>However error messages were displayed and said 
>'regrid' not a variable or function name , 'regrid2' not a variable or function 
>name and 're' not a variable or function name  
>respectively
>
>
>Does anyone have any ideas on how to regrid data using GrADS and give me some 
>suggestions? Which command should I use? 
>Your suggestion is highly appreciated.
>
>
>Thanks
>Henry
>
>
>
> 
>
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