<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style> body { font-family: "Calibri","Slate Pro",sans-serif,"sans-serif"; color:#262626 }</style> </head> <body lang="en-GB"><div>Dear NCL users</div><div><br></div><div>Please correct me. The code given below is just for potting wind directions but not far resultant vector.</div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;"><br></span></div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;">Plot = gsn_csm_vector_map(wks,u,v,res) </span></div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;"><br></span></div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;">It will provide only zonal wind direction. If we modify above code with (wks,v,u,res) then it will provide the meridional wind direction. </span></div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;"><br></span></div><div><span style="font-family: Calibri, 'Slate Pro', sans-serif, sans-serif;">So if I want to plot the resultant vector of u and v then what should I do? </span></div><div><br></div><div>Regards</div><div>Kunal bali</div></body></html>