[R] How to plot wind direction and strength field

seanpor seanpor at acm.org
Tue Apr 29 13:13:52 CEST 2008


Have a look at the R Newsletter Volume 3/2, October 2003


Jenny Barnes wrote:
> Dear R-help community,
> I have searched through the archives and not been able ot find any advice 
> on how to plot a wind field with one arrow per grid square with the arrow 
> pointing in the direction of the wind and it's size proportional to the 
> wind strength.
> I have the wind speed data in arrays of [lon,lat,uwind] and 
> [lon,lat,vwind] so it is broken down into u and v components. How do I 
> plot it though?!?!
> Any suggestions very wecome indeed - I seem to have hit a brick wall.....
> All the best,
> Jenny
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Jennifer Barnes
> PhD student: long range drought prediction 
> Climate Extremes Group
> Department of Space and Climate Physics
> University College London
> Holmbury St Mary 
> Dorking, Surrey, RH5 6NT
> Web: http://climate.mssl.ucl.ac.uk
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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