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> > Full Name: Wang zongmin > > Email Address: address@hidden > > Organization: Hebei bureau of meteorology > > Package Version: 3.0u2 build date:2012-02-10 17:21 UTC > > Operating System: Windows XP > > Hardware: Java: home: C:\Program Files\IDV_3.0u2\jre version: 1.6.0_20 > > j3d:1.5.2 fcs (build4) > > Description of problem: > > > > I found a error in calculating relvort and div,the resion is that ddx(u) > > changed to ddy(u). > > > > Please check it. > > > > Hello Zongmin, > I need more information to identify the issue you reported. Are you talking > about the derived quantities, or using the formula when you saw this issue? > This formula is well tested and being used for a long time, it may have bug > in it even though my feeling is again the user error. > > > Yuan > > > also, check out the definition of relative vorticity: http://en.wikipedia.org/wiki/Vorticity Ticket Details =================== Ticket ID: SRK-967099 Department: Support IDV Priority: Normal Status: Closed