Talk:2005 Pacific typhoon season/ACE calcs
This is the page for calculating the Accumulated Cyclone Energy for the 2005 Pacific typhoon season using data from the Joint Typhoon Warning Center.
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.
Systems
[edit]KULAP (Best track)
[edit]| Date | Time | Maximum Sustained Winds (kt) | ACE (104 kt2) |
|---|---|---|---|
| January 13 | 1800 UTC | 25 | 0 |
| January 14 | 0000 UTC | 25 | 0 |
| January 14 | 0600 UTC | 30 | 0 |
| January 14 | 1200 UTC | 30 | 0 |
| January 14 | 1800 UTC | 35 | 0.1225 |
| January 15 | 0000 UTC | 35 | 0.1225 |
| January 15 | 0600 UTC | 40 | 0.1600 |
| January 15 | 1200 UTC | 40 | 0.1600 |
| January 15 | 1800 UTC | 45 | 0.2025 |
| January 16 | 0000 UTC | 45 | 0.2025 |
| January 16 | 0600 UTC | 45 | 0.2025 |
| January 16 | 1200 UTC | 45 | 0.2025 |
| January 16 | 1800 UTC | 45 | 0.2025 |
| January 17 | 0000 UTC | 45 | 0.2025 |
| January 17 | 0600 UTC | 55 | 0.3025 |
| January 17 | 1200 UTC | 60 | 0.3600 |
| January 17 | 1800 UTC | 65 | 0.4225 |
| January 18 | 0000 UTC | 65 | 0.4225 |
| January 18 | 0600 UTC | 60 | 0.3600 |
| January 18 | 1200 UTC | 55 | 0.3025 |
| January 18 | 1800 UTC | 45 | 0.2025 |
| January 19 | 0000 UTC | 35 | 0.1225 |
| January 19 | 0600 UTC | 30 | Extratropical |
| January 19 | 1200 UTC | 25 | Extratropical |
| Total | 4.275 |
Season total
[edit]| Storm | Type | ACE (104 kt2) |
|---|---|---|
| 0501 (Kulap) | Best track | 4.275 |
| 0502 (Roke) | Best track | |
| Total | 4.275 |