HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Recently I am using HYSPLIT to do a backward trajectory analysis, but I didn't find any information about the wind speed along the trajectory, which I am very interested in.
Could you please help me get in contact with people who work with HYSPLIT backward trajectory, so I can ask more specific questions? Your help are highly appreciated!

Wind speed is not one of the trajectory output options for meteorological variables in HYSPLIT. However it can be computed from the difference in the hourly end point positions.

DIST=SQRT[ (lat2-lat1)**2 + ((lon2-lon1)*cos(0.5*(lat2+lat1)))**2 ] * 111000

UBAR (m/s) = DIST/3600.0

A Google search will yield more accurate equations if needed.