[GEMPAK #HWF-513769]: NSHARP - code documentation for "total shear" ?

Larry,

The code calculating wind shear in NSHARP is found in the source distribution
under the $GEMPAK/source/programs/gui/nsharp/winds.c routine "wind_shear",

The quantity being printed in the table (rounded for display) is being printed
in the xwvid3.c routine (same directory as above) where the magnitude of
shear is being divided by the depth of the layer.

The wind_shear routine is interpolating the winds to the top level of
the calculation and then calculating the difference in components in order to 
arrive at the magnitude.

Steve Chiswell
Unidata User Support


> Greetings,
> 
> 
> 
> Is it possible to see the code or documentation for how "total shear" (TOT
> SHR) is calculated and displayed in NSHARP?  Based on some past use in class
> and research, the definition and units for "total shear" in NSHARP and how
> this quantity compares to usage in the literature/conference papers are not
> entirely clear to me.   The quantity (total shear) is calculated in various
> layers and presented in tabular form towards the bottom of text output page
> 2 (i.e., right most column of values in the bottom "environmental shear"
> table).  It is labeled "TOT SHR."   Any clarification you can provide would
> be much appreciated.  Thanks for your help!
> 
> 
> 
> Best regards,
> 
> Larry
> 
> 
> 
> __________________________________
> Dr. Larry Carey
> Assistant Professor
> Department of Atmospheric Sciences
> Texas A&M University
> 3150 TAMU
> College Station, TX 77843-3150
> Phone: 979-847-9090
> Fax: 979-862-4466
> E-mail: address@hidden
> 
> Internet:http://www.met.tamu.edu/people/faculty/carey.php
> ________________________________
> 
> 
> 
> 
> 


Ticket Details
===================
Ticket ID: HWF-513769
Department: Support GEMPAK
Priority: Normal
Status: Closed