[ncl-talk] Regridding reananlysis 2 data error (NetCDF sub sectional data)

[Dennis Shea]

PLEASE read the documentation of the functions you are using.

On Wed, Apr 27, 2016 at 1:53 PM, Saurabh Singh <saurabhsingh123op at gmail.com>
wrote:

> Dear mam the code gives following error
>
> ncl 43> rtrmm = rcm2rgrid_Wrap(u11,opt)
> fatal:syntax error: function rcm2rgrid_Wrap expects 6 arguments, got 2
> fatal:error at line 43
>
> On Thu, Apr 28, 2016 at 3:42 AM, Mary Haley <haley at ucar.edu> wrote:
>
>> The error is telling you exactly what the problem is.
>>
>> This function rcm2rgrid expects the first two arguments to be 2D lat/lon
>> arrays, because this routine is regridding from a curvilinear grid to a
>> rectilinear grid.  Curvilinear grids are represented by 2D lat/lon arrays.
>> You are giving it 1D lat/lon arrays, which represent a rectilinear grid.
>>
>> You may want to use ESMF_regrid:
>>
>> UNTESTED:
>>
>>   opt = True
>>   opt at SrcGridLat  = lat2d   ; this variable should be renamed since it's
>> not 2D
>>   opt at SrcGridLon  = lon2d   ; ditto
>>   opt at SrcRegional = False   ; set to False if your source grid is
>> regional
>>
>>   opt at DstGridLat  = lat
>>   opt at DstGridLon  = lon
>>   opt at DstRegional = False   ; ditto
>>   opt at SrcMask@d   = where(.not.ismissing(var),1,0)  ; only necessary if
>> u11 contains missing values
>>   rtrmm = rcm2rgrid_Wrap(u11,opt)
>>
>> --Mary
>>
>>
>>
>> On Wed, Apr 27, 2016 at 12:30 PM, Saurabh Singh <
>> saurabhsingh123op at gmail.com> wrote:
>>
>>> Dear sir I am trying to interpolate Reanalysis-II data to TRMM data in
>>> order to find correlation;
>>>
>>> NCL Version 6.3.0
>>> OS: UBUNTU 15.10
>>>
>>> ncl_filedum uwnd.nc
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *float lat ( lat )         units :        degrees_north
>>> actual_range : ( 14.2855, -14.2855 )         long_name :
>>> Latitude         standard_name :        latitude         axis : Y
>>> coordinate_defines :   point*
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *      float lon ( lon )         units :        degrees_east
>>> long_name :    Longitude         actual_range : ( 90, 123.75 )
>>> standard_name :        longitude         axis : X
>>> coordinate_defines :   point*
>>>
>>>
>>>
>>>
>>>
>>>
>>> *      double time ( time )         units :        hours since 1800-1-1
>>> 00:00:0.0         long_name :    Time         actual_range : ( 1753152,
>>> 1823256 )         delta_t :      0000-00-01 00:00:00         standard_name
>>> :        time*
>>>
>>>
>>> Thereafter I use the following code :
>>>
>>>  a=addfile("/home/cee2/SV10.nc","r")
>>>
>>> y=a->lat
>>>  u10=a<-uwnd
>>>  u11=u10(:,0,:,:)
>>> lat2d=a->lat
>>>  lon2d=a->lon
>>>
>>>  ; Global TRMM grid .... Change for the Reanalysis region
>>>    nlat       = 400
>>>    mlon       = 1440
>>>    lat        = ispan(0,nlat-1,1)*0.25 -  49.875
>>>    lon        = ispan(0,mlon-1,1)*0.25 - 179.875
>>>
>>>
>>> lat!0     = "lat"
>>>   lat at units = "degrees_north"
>>>
>>> ;  lon       = fspan(-179.875, 179.875, nlon-1)
>>>   lon!0     = "lon"
>>>   lon at units = "degrees_east"
>>>
>>> ; regrid (bilinear)
>>>   wks = gsn_open_wks("png","resize")
>>>   rtrmm = rcm2rgrid_Wrap(lat2d,lon2d,u11,lat,lon,0)
>>>
>>> *However I get the following error :*
>>>
>>>
>>> *fatal:Number of dimensions in parameter (0) of (rcm2rgrid_Wrap) is (1),
>>> (2) dimensions were expectedfatal:["Execute.c":8573]:Execute: Error
>>> occurred at or near line 24*
>>>
>>> --
>>> With regards
>>> Saurabh Kumar singh
>>>
>>>  *P** : * *Please consider the environment before printing this e-mail*
>>>
>>>
>>>
>>>
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>>>
>>
>
>
> --
> With regards
> Saurabh Kumar singh
>
>  *P** : * *Please consider the environment before printing this e-mail*
>
>
>
>
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