NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.

To learn about what's going on, see About the Archive Site.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[IDV #UQR-619669]: Gridded Fields on U,V or Speed,Dir of Points Obs Data



> Hi
> 
> I am trying to make a streamline view on wind speed and direction point data.
> 
> I have a csv that contains
> Latitude[unit="degree"],Longitude[unit="degree"],WINDSPEED[unit="m/sec"],WINDDIRECTION[unit="degree"]
> I converted them to U,V vectors.
> 
> Once I loaded the csv into IDV
> I have "Gridded Fields" U and V separately
> 
> And I use "Formulas">"Grids">"Make flow vectors from u and v data" to
> form a "Wind Barb Plan View"
> 
> It seems to me that the wind barb output from gridded UV is very
> different from the originaly csv WindSpeed and WindDirection
> (using station model)
> 
> I have tried to find the document for this but fail.
> WANT TO KNOW:
> Is this supported by IDV?
> Any tunning I need to do?

Eric,
    I think you are on the right track, not sure how much difference in your 
output. Can you send me some output image and maybe a small sample data?


Yuan
> 
> Thanks a lot!
> 
> --
> Best Regards,
> Eric Fong
> 
> 


Ticket Details
===================
Ticket ID: UQR-619669
Department: Support IDV
Priority: Normal
Status: Open