445
60 Nr----------r--------_,-----,----~_,--~--7r--~
6 1
40 N
4
Fig 1. The clasification system used for the period of study and
examples of curved, marine local and continental traj ectories.
circle has a radius of a 2000 kIn. (Reprinted with permission
Atmospheric Environment, 26 A,6, 1081-1096)
850 HPo
700 HPo
4500
45,00
40.00
40,00
35,00
35.00
30,00
30.00
§
25,00
!
25.00
&
20.00
1
20,00
15.00
15,00
10.00
10.00
5 ,00
5.00
0 ,00
0,00
"LT Clf
CT
NR
''If CLI CT
(s)
t~ 0' trojeclOlY
(b)
'yp. 01 ',ai-dory
some
The
from
NR
Fig 2 . Percentage of all (a) 859-HPa
each
category.
(Reprinted
with
Environment,26 A,6, 1081-1096).
and 700- HPa back-trajectories of
permission
from
Atmospheric