Talk:2006 Pacific typhoon season/ACE calcs

This is the page for calculating the Accumulated Cyclone Energy for the 2006 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.

$\sum _{}^{}{\frac {{v_{\mathrm {max} }}^{2}}{10^{4}}},$

where v_max is estimated sustained wind speed in knots.

Chanchu (Best track)

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
09 May	0600 UTC	30	0
09 May	1200 UTC	35	0.1225
09 May	1800 UTC	35	0.1225
10 May	0000 UTC	40	0.1600
10 May	0600 UTC	45	0.2025
10 May	1200 UTC	50	0.2500
10 May	1800 UTC	50	0.2500
11 May	0000 UTC	50	0.2500
11 May	0600 UTC	50	0.2500
11 May	1200 UTC	55	0.3025
11 May	1800 UTC	50	0.2500
12 May	0000 UTC	50	0.2500
12 May	0600 UTC	55	0.3025
12 May	1200 UTC	55	0.3025
12 May	1800 UTC	50	0.2500
13 May	0000 UTC	50	0.2500
13 May	0600 UTC	55	0.3025
13 May	1200 UTC	60	0.3600
13 May	1800 UTC	65	0.4225
14 May	0000 UTC	75	0.5625
14 May	0600 UTC	80	0.6400
14 May	1200 UTC	85	0.7225
14 May	1800 UTC	90	0.8100
15 May	0000 UTC	95	0.9025
15 May	0600 UTC	95	0.9025
15 May	1200 UTC	95	0.9025
15 May	1800 UTC	95	0.9025
16 May	0000 UTC	95	0.9025
16 May	0600 UTC	90	0.8100
16 May	1200 UTC	85	0.7225
16 May	1800 UTC	85	0.7225
17 May	0000 UTC	85	0.7225
17 May	0600 UTC	80	0.6400
17 May	1200 UTC	75	0.5625
17 May	1800 UTC	60	0.3600
18 May	0000 UTC	45	0.2025
18 May	0600 UTC	40	0.1600
18 May	1200 UTC	40	0.1600
18 May	1800 UTC	40	0.1600
19 May	0000 UTC	35	EXT
Total			17.0700

Jelawat (Best track)

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
27 June	0600 UTC	30	0
27 June	1200 UTC	35	0.1225
27 June	1800 UTC	35	0.1225
28 June	0000 UTC	35	0.1225
28 June	0600 UTC	40	0.1600
28 June	1200 UTC	40	0.1600
28 June	1800 UTC	35	0.1225
29 June	0000 UTC	30	0
Total			0.8100

Ewiniar (Best track)

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
30 June	1200 UTC	30	0
30 June	1800 UTC	35	0.1225
01 July	0000 UTC	35	0.1225
01 July	0600 UTC	35	0.1225
01 July	1200 UTC	40	0.1600
01 July	1800 UTC	40	0.1600
02 July	0000 UTC	45	0.2025
02 July	0600 UTC	45	0.2025
02 July	1200 UTC	50	0.2500
02 July	1800 UTC	60	0.3600
03 July	0000 UTC	65	0.4225
03 July	0600 UTC	80	0.6400
03 July	1200 UTC	85	0.7225
03 July	1800 UTC	85	0.7225
04 July	0000 UTC	85	0.7225
04 July	0600 UTC	90	0.8100
04 July	1200 UTC	100	1.0000
04 July	1800 UTC	100	1.0000
05 July	0000 UTC	100	1.0000
05 July	0600 UTC	90	0.8100
05 July	1200 UTC	85	0.7225
05 July	1800 UTC	80	0.6400
06 July	0000 UTC	80	0.6400
06 July	0600 UTC	80	0.6400
06 July	1200 UTC	80	0.6400
06 July	1800 UTC	80	0.6400
07 July	0000 UTC	80	0.6400
07 July	0600 UTC	80	0.6400
07 July	1200 UTC	80	0.6400
07 July	1800 UTC	80	0.6400
08 July	0000 UTC	80	0.6400
08 July	0600 UTC	80	0.6400
08 July	1200 UTC	80	0.6400
08 July	1800 UTC	75	0.5225
09 July	0000 UTC	75	0.5225
09 July	0600 UTC	70	0.4900
09 July	1200 UTC	65	0.4225
09 July	1800 UTC	60	0.3600
10 July	0000 UTC	60	0.3600
10 July	0600 UTC	45	0.3025
10 July	1200 UTC	35	EXT
Total			20.9150

Sonamu (Best track)

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
13 August	1800 UTC	30	0
14 August	0000 UTC	35	0.1225
14 August	0600 UTC	35	0.1225
14 August	1200 UTC	35	0.1225
14 August	1800 UTC	35	0.1225
15 August	0000 UTC	35	0.1225
15 August	0600 UTC	30	0
Total			0.6125

Season total

Storm	Type	ACE (104 kt2)
0601 Chanchu	Best track	17.0700
0602 Jelawat	Best track	0.8100
0603 Ewiniar	Best track	20.9150
0604 Bilis	Best track	6.1125
0605 Kaemi	Best track	11.5925
0606 Prapiroon	Best track	4.3400
0607 Maria	Best track	5.8250
0608 Saomai	Best track	13.0336
0609 Bopha	Best track	3.4200
0610 Wukong	Best track	5.4675
0611 Sonamu	Best track	0.6125
0612 Ioke	Best track	32.5525
0613 Shanshan	Best track	21.2850
0614 Yagi	Best track	17.3800
0615 Xangsane	Best track	11.0925
0616 Bebinca	Best track	2.4550
0617 Rumbia	Best track	1.9450
0618 Soulik	Best track	10.3625
0619 Cimaron	Best track	17.8950
0620 Chebi	Best track	7.4125
0621 Durian	Best track	17.7375
0622 Utor	Best track	10.4050
0623 Trami	Best track	0.6125
Total		240.3336