Wind speed along trajectory

Topics about the HYSPLIT trajectory model.

Wind speed along trajectory

Postby arl.noaa » 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?
arl.noaa
 
Posts: 32
Joined: November 9th, 2012, 2:49 pm

Re: Wind speed along trajectory

Postby glenn.rolph » May 7th, 2013, 2:27 pm

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.
glenn.rolph
 
Posts: 102
Joined: November 7th, 2012, 1:39 pm


Return to Trajectory Model

Who is online

Users browsing this forum: No registered users and 1 guest

cron