Geoscience Reference
In-Depth Information
2003/10/28 00:00:00 - 2003/10/29 00:00:00
15
10
5
0
−
5
−
10
−
15
15
10
5
0
−
5
−
10
0
−
10
−
20
−
30
−
40
1500
1000
500
0
0
4
8
12
16
20
24
UT (hrs)
8
6
4
2
0
28 OCTOBER 2003
2003/10/25 2003/10/26 2003/10/27 2003/10/28
2003/10/29 2003/10/30
Fig. 4.7
The
B
y
and
B
z
(in nT) components of the interplanetary magnetic field (IMF) in the GSM
yz
-plane near the frontside magnetopause, deduced from time-shifted IMF and solar wind plasma
measurements of the Advanced Composition Explorer (ACE) spacecraft, using the phase front
propagation technique of Weimer et al. (
2003
), in a slightly modified version, that is based on a
constrained minimum variance analysis of the IMF (Haaland et al.
2006
), together with the hourly
Dst, 1-min AE, and 3-h Kp index values for the modeled day, 28 October 2003, the day before one
of the strongest space weather storm events of solar cycle 23, the so-called Halloween superstorm
