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Talk:2012 Pacific typhoon season/ACE calcs

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This is the page for calculating the Accumulated Cyclone Energy for the 2012 Pacific typhoon season using data from the Japan Meteorological Agency.

The ACE is calculated by summing the squares of the estimated maximum sustained velocity of every active tropical storm (wind speed 35 knots or higher), at six-hour intervals. The numbers are usually divided by 10,000 to make them more manageable. The unit of ACE is 104 kt2, and for use as an index the unit is assumed. If any storms of a season happen to cross years, the storm's ACE counts for the previous year. [1]

where vmax is estimated sustained wind speed in knots.

01W.One (Best Track)

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02W.Pakhar (Best Track)

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03W.Sanvu (Best Track)

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04W.Mawar (Best Track)

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05W.Guchol (Best Track)

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06W.Talim (Best Track)

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07W.Doksuri (Best Track)

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08W.Khanun (Best Track)

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09W.Vicente (Best Track)

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10W.Saola (Best Track)

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11W.Damrey (Best Track)

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12W.Haikui (Best Track)

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13W.Kirogi (Best Track)

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14W.Kai-tak (Best Track)

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15W.Tembin (Best Track)

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16W.Bolaven (Best Track)

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17W.Sanba (Best Track)

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18W.Jelawat (Best Track)

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19W.Ewiniar (Best Track)

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20W.Maliksi (Best Track)

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21W.Gaemi (Best Track)

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22W.Prapiroon (Best Track) =

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23W.Maria (Best Track)

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24W.Son-Tinh (Best Track)

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25W.Twenty-five (Best Track)

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26W.Bopha (Best Track)

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27W.Wukong (Best Track)

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Season total

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StormTypeACE (104 kt2)
1201 Pakhar Best Track 2.7550
1202 Sanvu Best Track 5.5225
1203 Mawar Best Track 6.6800
1204 Guchol Best Track 13.7175
1205 Talim Best Track 2.4825
1206 Doksuri Best Track 1.8175
1207 Khanun Best Track 1.9550
1208 Vicente Best Track 3.6500
1209 Saola Best Track 7.6125
1210 Damrey Best Track 5.8975
1211 Haikui Best Track 6.0300
1212 Kirogi Best Track 2.5050
1213 Kai-tak Best Track 5.2950
1214 Tembin Best Track 19.8850
1215 Bolaven Best Track 18.1050
1216 Sanba Best Track 18.6150
1217 Jelawat Best Track 32.1750
1218 Ewiniar Best Track 4.6475
1219 Maliksi Best Track 2.3750
1220 Gaemi Best Track 3.1750
1221 Prapiroon Best Track 22.1875
1222 Maria Best Track 3.7925
1223 Son-Tinh Best Track 6.5300
1224 Bopha Best Track 24.8825
1225 Wukong Best Track 1.7050
Total223.995