[ncl-talk] coordinates conformity

[Mary Haley]

Yes, that looks correct to me.

You can look at the $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
script in a UNIX editor, and search for "wrf_user_stagger" to see how it is
used in various places there:

         u    = wrf_user_unstagger(u_in,u_in at stagger)
         v    = wrf_user_unstagger(v_in,v_in at stagger)

--Mary



On Sat, May 14, 2016 at 6:06 AM, Amadou Coulibaly <mpapin24 at gmail.com>
wrote:

> Hello NCL users,
>
> Using Unstaggers an input variable along a specified dimension, I have
> been able to have adv_u and adv_v in same nlon and nlat as u and v. Is this
> method correct?
>
> adv_u1     = wrf_user_unstagger(adv_u,adv_u at stagger)
> adv_v1     = wrf_user_unstagger(adv_v,adv_v at stagger)
>
> Best regards
>
> On 14 May 2016 at 12:50, Amadou Coulibaly <mpapin24 at gmail.com> wrote:
>
>> Dear NCL users,
>>
>> I want to have the same coordinates for the following parameters:
>> Variable: u
>> Type: float
>> Total Size: 397184 bytes
>>             99296 values
>> Number of Dimensions: 3
>> Dimensions and sizes:    [time | 8] x [lat | 107] x [lon | 116]
>> Coordinates:
>>             time: [17280..18540]
>>             lat: [-2.317024..11.94772]
>>             lon: [-7.181778..8.389778]
>> Number Of Attributes: 6
>>   coordinates :    XLONG XLAT XTIME
>>   stagger :
>>   units :    m s-1
>>   description :    U at 10 M
>>   MemoryOrder :    XY
>>   FieldType :    104
>>
>> Variable: v
>> Type: float
>> Total Size: 397184 bytes
>>             99296 values
>> Number of Dimensions: 3
>> Dimensions and sizes:    [time | 8] x [lat | 107] x [lon | 116]
>> Coordinates:
>>             time: [17280..18540]
>>             lat: [-2.317024..11.94772]
>>             lon: [-7.181778..8.389778]
>> Number Of Attributes: 6
>>   coordinates :    XLONG XLAT XTIME
>>   stagger :
>>   units :    m s-1
>>   description :    V at 10 M
>>   MemoryOrder :    XY
>>   FieldType :    104
>>
>> Variable: lon
>> Type: float
>> Total Size: 464 bytes
>>             116 values
>> Number of Dimensions: 1
>> Dimensions and sizes:    [lon | 116]
>> Coordinates:
>> Number Of Attributes: 6
>>   FieldType :    104
>>   MemoryOrder :    XY
>>   description :    LONGITUDE, WEST IS NEGATIVE
>>   units :    degree_east
>>   stagger :
>>   coordinates :    XLONG XLAT
>>
>> Variable: lat
>> Type: float
>> Total Size: 428 bytes
>>             107 values
>> Number of Dimensions: 1
>> Dimensions and sizes:    [lat | 107]
>> Coordinates:
>> Number Of Attributes: 6
>>   FieldType :    104
>>   MemoryOrder :    XY
>>   description :    LATITUDE, SOUTH IS NEGATIVE
>>   units :    degree_north
>>   stagger :
>>   coordinates :    XLONG XLAT
>>
>> Variable: adv_u
>> Type: float
>> Total Size: 19629792 bytes
>>             4907448 values
>> Number of Dimensions: 4
>> Dimensions and sizes:    [Time | 8] x [bottom_top | 49] x [south_north |
>> 107] x [west_east_stag | 117]
>> Coordinates:
>> Number Of Attributes: 6
>>   coordinates :    XLONG_U XLAT_U XTIME
>>   stagger :    X
>>   units :
>>   description :    u-advection tendency
>>   MemoryOrder :    XYZ
>>   FieldType :    104
>>
>> Variable: adv_v
>> Type: float
>> Total Size: 19643904 bytes
>>             4910976 values
>> Number of Dimensions: 4
>> Dimensions and sizes:    [Time | 8] x [bottom_top | 49] x
>> [south_north_stag | 108] x [west_east | 116]
>> Coordinates:
>> Number Of Attributes: 6
>>   coordinates :    XLONG_V XLAT_V XTIME
>>   stagger :    Y
>>   units :
>>   description :    v-advection tendency
>>   MemoryOrder :    XYZ
>>
>> We can see that the variables adv_u and adv_v have different longitude
>> and latitude number compare to u and v. So it there any function to change
>> adv_u in (nlon=116) and adv_v (nlat=107) as u and v?
>>
>> Best regards
>>
>>
>> --
>> * COULIBALY   AMADOU   *
>> PhD  Student  on  West  African  Climate  System (WACS)
>> FUTA - Federal  University  of  Technology of Akure, Nigeria
>>
>> *Visiting Student - *
>> *University of Cologne, Germany**Institute of Geophysics and Meteorology*
>> Pohligstr. 3 / Office 3.102
>> D-50969 Köln
>>
>> *Project*: WASCAL (West African Science Service Centre on Climate Change
>> and Adapted Land Use)
>> Phone:(+234) 812 965 3659 /(+223) 90 08 26 71 /(+226) 64 57 37 27 /+49
>> 15218352574
>>
>> E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
>>
>> "*The time is always right to do right": Nelson Mandela*
>>
>> *"Character is like a tree and reputation like a shadow.  The shadow is
>> what we think of it; the tree is the real thing" : Abraham Lincoln*
>>
>> *"Do what you can, with what you have, where you are" Theodore Roosevelt*
>>
>>
>>
>>
>>
>>
>
>
>
> --
> * COULIBALY   AMADOU   *
> PhD  Student  on  West  African  Climate  System (WACS)
> FUTA - Federal  University  of  Technology of Akure, Nigeria
>
> *Visiting Student - *
> *University of Cologne, Germany**Institute of Geophysics and Meteorology*
> Pohligstr. 3 / Office 3.102
> D-50969 Köln
>
> *Project*: WASCAL (West African Science Service Centre on Climate Change
> and Adapted Land Use)
> Phone:(+234) 812 965 3659 /(+223) 90 08 26 71 /(+226) 64 57 37 27 /+49
> 15218352574
>
> E-mail: mpapin24 at gmail.com / coulibalya68 at yahoo.com
>
> "*The time is always right to do right": Nelson Mandela*
>
> *"Character is like a tree and reputation like a shadow.  The shadow is
> what we think of it; the tree is the real thing" : Abraham Lincoln*
>
> *"Do what you can, with what you have, where you are" Theodore Roosevelt*
>
>
>
>
>
>
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