Tropical Cyclone Drena
● Data reliability: ReliableWeather satellites monitored it throughout, so its track and intensity are relatively accurate (Atlantic and E. Pacific since 1966, other basins since 1980).
Drena at 1997-01-01 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 5 Tropical Cyclone , max wind 约 61.7 m/s (1 分钟平均) , minimum central pressure 935 hPa, at 1997-01-13 20:00:00前后结束, total 记录 51 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1997-01-01 08:00 | -10.3°S, 175.5°E | Tropical Depression | 7.7 | - |
| 1997-01-02 02:00 | -10.8°S, 172.5°E | Tropical Depression | 10.3 | - |
| 1997-01-02 20:00 | -12.5°S, 169.2°E | Tropical Depression | 15.4 | 1000 |
| 1997-01-03 14:00 | -14.4°S, 165.4°E | Tropical Depression | 18 | 997 |
| 1997-01-04 08:00 | -14.9°S, 161.7°E | Category 2 Tropical Cyclone | 30.9 | 980 |
| 1997-01-05 02:00 | -15.2°S, 159.7°E | Category 3 tropical cyclone | 46.3 | 965 |
| 1997-01-05 20:00 | -15.8°S, 158.9°E | Category 5 Tropical Cyclone | 61.7 | 945 |
| 1997-01-06 14:00 | -17.0°S, 158.8°E | Category 4 tropical cyclone | 59.2 | 935 |
| 1997-01-07 08:00 | -18.3°S, 161.2°E | Category 4 tropical cyclone | 54 | 945 |
| 1997-01-08 02:00 | -21.0°S, 164.3°E | Category 4 tropical cyclone | 48.9 | 950 |
| 1997-01-08 20:00 | -24.6°S, 167.1°E | Category 3 tropical cyclone | 36 | 970 |
| 1997-01-09 14:00 | -28.7°S, 168.4°E | Category 2 Tropical Cyclone | 28.3 | 975 |
| 1997-01-10 08:00 | -33.6°S, 169.7°E | Category 1 Tropical Cyclone | 25.7 | 984 |
| 1997-01-11 02:00 | -38.0°S, 172.5°E | Category 1 Tropical Cyclone | 23.1 | 986 |
| 1997-01-11 20:00 | -45.4°S, 175.5°E | Category 1 Tropical Cyclone | 20.6 | 984 |
| 1997-01-12 14:00 | -49.2°S, 177.8°E | Tropical Cyclone | - | - |
| 1997-01-13 08:00 | -50.5°S, 179.5°W | Tropical Depression | 16.5 | 993 |
| 1997-01-13 20:00 | -53.0°S, 174.0°W | Tropical Depression | 11.3 | 1001 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1997001S10176 / SH161997. This area has no official Chinese name, so the original English name is used. Intensity categories follow the local agency classification for the region, converted from 1-minute sustained winds using the WMO factor, and are provided for reference only. Data notes · Incorrect translation?
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