Hi I an not write geostrophic wind and temp in fortran ug=-1/f (∂h)/∂y vg=1/f (∂h)/∂x h(z2 )-h(z1 )=R∫T(d lnp ) ( f = coriolisparameter , h =geopotenciel height , ) would you please help me in this regard. what should I do? Thanks in advance and looking forward to your reply. Best Regards