Extratropical cyclone tracks for 1979-2013
Natalia Tilinina, Sergey Gulev and Irina Rudeva
P.P. Shirshov Institute of Oceanology RAS
Obtained from ERA Interim reanalysis data http://www.ecmwf.int
Every track is written in the following way:
2-Jan-2007 06:00
8
290.0 82.5 6 999.8
290.0 82.5 7 997.6
284.0 82.1 8 995.4
306.9 83.6 9 991.4
305.5 84.5 10 990.7
310.6 84.1 11 989.6
326.3 85.4 12 990.5
326.3 85.4 13 991.1
"2-Jan-2007 06:00" - time when the first point of cyclone track has been identified
"8" - number of points in the track (6 hr step)
"290.0 82.5 6 999.8" - longitude, latitude of cyclone centre, time*, SLP at cyclone centre
at first point of the track
"290.0 82.5 7 997.6" - the same but for the second point of the track
...
"326.3 85.4 13 991.1" - the same but for the last point of the track
time=1 corresponds to the 00:00 1 Jan
time=2 corresponds to the 06:00 1 Jan
time=3 corresponds to the 12:00 1 Jan
...
time=6 corresponds to the 06:00 2 Jan
...
time=1460 corresponds to the 18:00 31 Dec (for a non-leap year)

Figure 1. Domains for choosing the tracks potentially influencing inland seas.
Tracks provided for 2 domains (Fig. 1), cyclone attributed to the specific domain if any point of a cyclone track lies inside the domain.
Domains are chosen according to Mediterranean storm track shape and pattern of cyclone activity over the Caspian and Aral seas (Fig. 2).

Figure 2. Climatological number of cyclones n ERA Interim reanalysis, for winter (a) and summer(b) for the period 1979 – 2013.
Tracks:
Domain 1.
Domain 2.