[gradsusr] Tropical cyclone scripts and grads fuctions

[Charles Seman]

Travis,

Please find attached a script "plot_hurricane_center3.gs" which finds 
and plots locations of a user-defined "hurricane center" variable as a 
function of time level: finds the "world" coordinates of the "hurricane 
center" point, converts them to "xy" coordinates for plotting, and 
writes the "xy" coordinates out to an ASCII text file for later read-in 
for plotting the track... The script is interactive in that at each time 
level it prompts the user to define a box within which to search for the 
minimum pressure (for example, surface pressure), using mouse clicks: 
upper-left and lower-right corners; this was added to be able to exclude 
low surface pressures of topographical features when the hurricane is 
near land.  The script could be modified to search for the maximum 
surface vorticity, or whatever the user decides to use.  Please let me 
know if you have any questions about the script.

References and sources:

1) locally modified versions derived from Joe Covert's script 
"plot_tc_shi.gs" (Joe.Covert at noaa.gov), which was posted to the GrADS 
Listserv on 9/13/2004 (his script was named plot_tc_shi.gs);  on 
4/27/06, found via a Google search for "plot_tc_shi.gs": 
http://caos.iisc.ernet.in/gslib/plot_tc_shi.gs

2) code in "hurricane_tracking.txt" (attached; taken from an email 
exchange posted to the GrADS Listserv by Kun-Hsuan Chou and Arturo 
Caracas Uribe in Oct, 2004)

I hope this helps,
Chuck

Travis Washington wrote:
> I all,
>
> I would like to make a time series plot of the low pressure of 
> tropical cyclone. My professor says there is a function in grads. set 
> gxout state that will display the max and minimum values. Also does 
> anyone have a script that plots the track of tropical cyclone and 
> displays it in grads.
>
> Thanks,
> Travis
>
> -- 
> Travis Washington
> MS Student
> Department of Marine & Environmental Systems
> Florida Institute of Technology
> 150 W University Blvd.
> Melbourne, FL 32901
> Ph: 850-524-0532
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>   

-- 

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
 Princeton, NJ  08540-6649            http://www.gfdl.noaa.gov/~cjs/
********************************************************************

"The contents of this message are mine personally and do not reflect any
official or unofficial position of the United States Federal Government,
the United States Department of Commerce, or NOAA."

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: plot_hurricane_center3.gs
Url: http://gradsusr.org/pipermail/gradsusr/attachments/20101012/531b30e4/attachment-0009.pl 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: cbar_line.gs
Url: http://gradsusr.org/pipermail/gradsusr/attachments/20101012/531b30e4/attachment-0010.pl 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: cbar_line_box.gs
Url: http://gradsusr.org/pipermail/gradsusr/attachments/20101012/531b30e4/attachment-0011.pl 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pause.gsf
Type: application/x-font-type1
Size: 355 bytes
Desc: not available
Url : http://gradsusr.org/pipermail/gradsusr/attachments/20101012/531b30e4/attachment-0003.bin 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: hurricane_tracking.txt
Url: http://gradsusr.org/pipermail/gradsusr/attachments/20101012/531b30e4/attachment-0003.txt