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Table 6 Monthly mean wind direction and wind speed aggregated for a 64-year period (1950–2014) for 16 NCEP grid points across the Indonesian sub-region

From: Probabilistic Volcanic Ash Hazard Analysis (PVAHA) I: development of the VAPAH tool for emulating multi-scale volcanic ash fall analysis

NCEP point

Longitude

Latitude

Wind direction (deg)

Wind speed (m/s)

0

97.5

5

254

9.78

1

97.5

2.5

262

9.90

2

100

0

269

9.96

3

102.5

−2.5

266

9.59

4

105

5

262

9.28

5

107.5

−7.5

257

7.72

6

110

−7.5

259

7.57

7

112.5

−7.5

261

7.52

8

115

−7.5

262

7.49

9

117.5

−7.5

263

7.39

10

120

−7.5

265

7.18

11

122.5

−7.5

269

6.95

12

130

−7.5

267

6.29

13

130

−5

263

8.63

14

127.5

0

267

11.65

15

125

2.5

253

11.41