[gradsusr] Get direction of max wind in hourly time serie of a point

[claudiomet]

Thanks Martin !

I will try the method !
Concening with the direction no problem, the dataset includes speed in
degrees
(It's a WRF output post-processed with ARWpost specifying the wind as u,v
vectors and speed and direction)
Thanks again !


2013/5/30 Martin V. Mathew <vmartinmathew at gmail.com>

> Hi
> I think you can try following two steps to obtain the direction of maximum
> wind.
>
> First you have to find the hour of the day in which have maximum wind
> speed (use mag and maxloc commands).
> http://www.iges.org/grads/gadoc/gadocindex.html
>
> After identifying the particular hour use trigonometric function *atan2()
> *to obtain the angle.
>  http://www.iges.org/grads/gadoc/functionsatt.html
>
> Regards
> Martin
>
>
> On 29 May 2013 21:42, claudiomet <claudiomet at gmail.com> wrote:
>
>> Greetings users.
>>
>> I'm writing a script to extract data of a single point in ascii file
>> (my data set is hourly and I'm extracting daily vaues of max temp, min
>> temp, max wind, max rel hum, etc... solved).
>>
>> But my problem is that I need to obtain the direction of the wind at
>> the hour of the max wind intensity and the prevailing wind of the day
>> ¿How can I do this?
>>
>> Thanks in advance !
>>
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>>
>
>
>
> --
> Martin V. Mathew
> Research scholar
> Centre for Oceans, Rivers, Atmosphere and Land Sciences (CORAL)
> IIT Kharagpur
> India.
>
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>
>


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