EXAMPLE EVENT ANALYSIS
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Event Analysis from NARE-93
Forward and Backward Trajectories
Forward trajectories calculated from near New York City on the 27th
and backward trajectories from near Yarmouth, on the 28th, at 500 m
(red), 1000 m (blue), and 1500 m (black) above ground, clearly indicated
that the 500 m trajectory
(or even lower) is the one that corresponds most closely with
the ozone plume. Without reference to the model's ozone projection, the only
way to determine that the lowest levels provides the most realistic transport
direction is by reference to the skew-t diagram. However those soundings still
hint that material from heights up to the previous' days
mixed layer depth could have potentially contributed to the ozone pattern.
Trajectories at times may present a too simplified view of the transport patterns.
Forward trajectories from New York City
at 1200 UTC, August 27, 1993
Backward trajectories from Yarmouth, NS
at 1800 UTC, August 28, 1993
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Forward trajectories from New York City
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Backward trajectories from Yarmouth, NS
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