> What backward trajectory starting height(s) are suggested for a rugged mountainous terrain in Colorado?
I am attempting to calculate back trajectories for event based precipitation samples to
trace sources of atmospheric pollutants (mercury, nitrogen, pesiticides). I am uncertain
as to what height or pressure I should use in the model. Most
of the events I am trying to model are summer thundershowers. Also, my site is located
in rugged mountainous terrain in Colorado at an elevation of 9500 feet.
We have two frequently asked question pages that is very similar to what
you are asking. They are at:
Generally what has been done in the past is to pick several levels near
where the precipitation is formed, which is generally between 850 and
700mb. However, since your location is already at about 700mb above sea
level, you will need to do some above 700mb to account for the terrain.
