awips2/ncep/gov.noaa.nws.ncep.ui.nsharp/nsharp_c/winds.h

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/* WINDS Function Prototypes */
float ucomp( float wdir, float wspd );
float vcomp( float wdir, float wspd );
float angle( float u, float v );
void mean_wind( float pbot, float ptop, float *mnu, float *mnv,
float *wdir, float *wspd);
void sr_wind( float pbot, float ptop, float stdir, float stspd,
float *mnu, float *mnv, float *wdir, float *wspd);
void wind_shear( float pbot, float ptop, float *shu, float *shv,
float *sdir, float *smag);
float helicity( float lower, float upper, float sdir, float sspd,
float *phel, float *nhel);