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Table 1 Ionosonde stations used in analysis

From: Assessing the performance of a Northeast Asia Japan-centered 3-D ionosphere specification technique during the 2015 St. Patrick’s day geomagnetic storm

Ionosonde stations

Geographic

Geomagnetic

Location

Code

Latitude (°N)

Longitude (°E)

Latitude (°N)

Guam

GU513

13.62

144.86

5.79

Okinawaa

OK426

26.68

128.15

17.43

Wuhan

WU430

30.50

114.40

20.71

Yamagawaa

YG431

31.20

130.62

22.06

Jejua

JJ433

33.43

126.30

24.4

Kokubunjia

TO536

35.71

139.49

27.18

I-Cheona

IC437

37.14

127.54

27.80

Beijing

BP440

40.30

116.20

30.53

Wakkanaia

WK546

45.16

141.75

36.75

  1. The arrangement is in ascending geomagnetic latitude
  2. aIndicates stations located within the sub-grid region of high-resolution marked out in blue dash lines in Fig. 1