[gradsusr] Station data

Fri Feb 19 15:50:19 EST 2016

I only have the wind-direction (units are compass direction, e.g. SSW) and
speed (units mph). If I set gxout model, how would I get u/v components?

On Fri, Feb 19, 2016 at 3:20 AM, Jayakrishnan P.R <prjayakrishnan at gmail.com>
wrote:

> Just made some modifications with your file. You can try with the attached
> files.
> First run the fortran. Then C program. Then run the command stnmap -i
> clim.ctl to create station map. Then open grads.
>
> On Thu, Feb 18, 2016 at 8:04 PM, itesh dash <itesh at rimes.int> wrote:
>
>> Hi Davies,
>>
>> You can user the cookbook recipe:005 . I found it very useful.
>>
>>
>> http://cookbooks.opengrads.org/index.php?title=Recipe-005:_Creating_GrADS_binary_station_data_from_ASCII
>>
>> just copy the stngrads.cpp file and the station.h file to local directory
>> and compile with g++ or any c++ compiler
>>
>> like g++ stationgrads.cpp -o stngrads
>>
>> this will generate the executable stngrads
>>
>> then use it as
>>
>> ./stngrads stationfile.txt station.bin L/U ( L for lat/long and U for UTM)
>>
>> Attached are both files and the executable also.
>>
>> Thanks to the original developer. It was very useful for me.
>>
>> PS: make sure your Lat Lon column are in the correct order. Thats may be
>> a reason stations being plotted at wrong location.
>>
>> Afterwards, you can use the oacres function to interpolate and view the
>> data to model grid if thats something you want to do.
>>
>> Hope this is helpful.
>>
>> Regards,
>> itesh
>>
>>
>> On Thu, Feb 18, 2016 at 7:01 PM, Thomas Davies <tsd.davies at gmail.com>
>> wrote:
>>
>>> I just tried to run station2modelgrid.c on the above text file, however
>>> when I plot in GrADS there are only 2 values in the wrong place
>>>
>>>
>>> 
>>>
>>> On Thu, Feb 18, 2016 at 11:56 AM, Thomas Davies <tsd.davies at gmail.com>
>>> wrote:
>>>
>>>> Do you mean like the attached file?
>>>>
>>>> On Thu, Feb 18, 2016 at 2:15 AM, Jayakrishnan P.R <
>>>> prjayakrishnan at gmail.com> wrote:
>>>>
>>>>> I think the problem is with the exact reading of the text file and
>>>>> writing as binary file due to formatting. Could you send me the unformatted
>>>>> text file may be like this. I have done this without formatting as your
>>>>> case.
>>>>> *2016 02 17 22 station1 60.749 -0.854 1005 *
>>>>> *2016 02 17 22 station2 60.139 -1.183 1006 *
>>>>> *2016 02 17 22 **station3 60.447 -1.277 950  *
>>>>>
>>>>> On Thu, Feb 18, 2016 at 7:04 AM, Thomas Davies <tsd.davies at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am trying to plot station data recieved from UKMO datapoint. I have
>>>>>> written the data to a text file like this (Following the tutorial here:
>>>>>> http://cookbooks.opengrads.org/index.php?title=Recipe-013:_Gridding_and_Plotting_Station_Data
>>>>>> ):
>>>>>>
>>>>>>
>>>>>> *2016 02 17 22 station1 60.749 -0.854 1005 2016 02 17 22 station2
>>>>>> 60.139 -1.183 1006 2016 02 17 22 station3 60.447 -1.277 950 2016 02 17 22
>>>>>> station4 60.111 -2.063 1004 2016 02 17 22 station5 58.954 -2.9 1006 2016 02
>>>>>> 17 22 station6 58.214 -6.325 1004 2016 02 17 22 station7 57.725 -4.896 1007
>>>>>> 2016 02 17 22 station8 57.859 -5.636 1006 2016 02 17 22 station9 57.257
>>>>>> -5.809 1007 2016 02 17 22 station10 57.4175 -5.689 950 2016 02 17 22
>>>>>> station11 58.288 -4.442 1006 2016 02 17 22 station12 56.867 -4.708 1009
>>>>>> 2016 02 17 22 station13 57.819 -3.966 1007 2016 02 17 22 station14 57.206
>>>>>> -3.827 1008 2016 02 17 22 station15 57.116 -3.642 950 2016 02 17 22
>>>>>> station16 57.6494 -3.5606 1007 2016 02 17 22 station17 57.712 -3.322 1007
>>>>>> 2016 02 17 22 station18 58.454 -3.089 1006 2016 02 17 22 station19 57.077
>>>>>> -2.836 1009 2016 02 17 22 station20 57.206 -2.202 1008 2016 02 17 22
>>>>>> station21 56.497 -6.887 1007 2016 02 17 22 station22 55.681 -6.256 1009
>>>>>> 2016 02 17 22 station23 55.441 -5.699 1009 2016 02 17 22 station24 54.859
>>>>>> -4.936 1011 2016 02 17 22 station25 55.907 -4.533 1010 2016 02 17 22
>>>>>> station26 55.515 -4.585 1010 2016 02 17 22 station27 56.326 -3.729 1009
>>>>>> 2016 02 17 22 station28 56.423 -4.32 950 2016 02 17 22 station29 54.803
>>>>>> -4.008 1010 2016 02 17 22 station30 55.627 -3.735 1010 2016 02 17 22
>>>>>> station31 55.709 -2.383 1009 2016 02 17 22 station32 55.928 -3.343 1009
>>>>>> 2016 02 17 22 station33 56.377 -2.862 1009 2016 02 17 22 station34 54.0849
>>>>>> -4.6321 1011 2016 02 17 22 station35 54.5181 -3.615 1011 2016 02 17 22
>>>>>> station36 54.614 -3.157 1011 2016 02 17 22 station37 54.125 -3.257 1010
>>>>>> 2016 02 17 22 station38 54.933 -2.963 1010 2016 02 17 22 station39 55.05
>>>>>> -2.553 1010 2016 02 17 22 station40 54.501 -2.684 1011 2016 02 17 22
>>>>>> station41 54.572 -2.413 1010 2016 02 17 22 station42 54.684 -2.45 950 2016
>>>>>> 02 17 22 station43 55.285 -2.279 1010 2016 02 17 22 station44 55.02 -1.88
>>>>>> 1009 2016 02 17 22 station45 55.421 -1.6 1009 2016 02 17 22 station46
>>>>>> 54.204 -1.39 1010 2016 02 17 22 station47 54.563 -0.863 1009 2016 02 17 22
>>>>>> station48 54.362 -0.673 950 2016 02 17 22 station49 54.094 -0.174 1008 2016
>>>>>> 02 17 22 station50 53.252 -4.537 1011 *
>>>>>>
>>>>>> I wrote it in the exact same format as the link above and ran
>>>>>> station2modelgrid.c (using TCC compiler for windows), as well as stnmap
>>>>>> with this descriptor file:
>>>>>>
>>>>>> *DSET ^station.dat*
>>>>>> *DTYPE station*
>>>>>> *STNMAP ^station.map*
>>>>>> *UNDEF -999.0*
>>>>>> *TITLE station data test*
>>>>>> *TDEF 1 linear 22Z17FEB2016 1mo*
>>>>>> *VARS 1*
>>>>>> *slp  0  99  SLP*
>>>>>> *ENDVARS*
>>>>>>
>>>>>> However when I open station.ctl in GrADS and plot the slp variable no
>>>>>> values are displayed. I have tried changing the format of the text
>>>>>> file/C-script however nothing has worked for me.
>>>>>>
>>>>>> If anybody can spot a problem or provide an alternative C script with
>>>>>> notes about the text file formatting (I don't know any C or Fortran)
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> _______________________________________________
>>>>>> gradsusr mailing list
>>>>>> gradsusr at gradsusr.org
>>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Sincerely
>>>>>
>>>>> **************************************************
>>>>> Dr. Jayakrishnan P.R
>>>>> Post Doctoral Research Fellow
>>>>> C308, Institute of Ocean and Earth Sciences (IOES)
>>>>> University of Malaya
>>>>> 50603, Kuala Lumpur
>>>>> Tel: (+603) 7967 4640 / 6995
>>>>> Mobile: 012-3526094
>>>>>
>>>>> ****************************************************
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
>>>>> gradsusr at gradsusr.org
>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>
>>>>>
>>>>
>>>
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>>>
>>
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>>
>
>
> --
> Sincerely
>
> **************************************************
> Dr. Jayakrishnan P.R
> Post Doctoral Research Fellow
> C308, Institute of Ocean and Earth Sciences (IOES)
> University of Malaya
> 50603, Kuala Lumpur
> Tel: (+603) 7967 4640 / 6995
> Mobile: 012-3526094
>
> ****************************************************
>
>
>
>
>
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