Wind speed along trajectory
Posted: May 7th, 2013, 2:25 pm
I am using HYSPLIT to do a backward trajectory analysis, but I didn't find any information about the wind speed along the trajectory. Could you please tell me if this is possible?
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.