Tropical Cyclone Henrietta
● Data reliability: Generally reliable——Aircraft entered typhoons for in situ measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased, with weaker cyclones potentially going unrecorded from 1950 until the advent of satellite coverage.
Henrietta at 1973-02-28 20:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 22.1 m/s (1 分钟平均) , minimum central pressure 990 hPa, at 1973-03-02 20:00:00前后结束, total 记录 9 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1973-02-28 20:00 | -11.0°S, 171.0°E | Tropical Depression | 16.5 | 997 |
| 1973-03-01 02:00 | -11.7°S, 171.9°E | Tropical Cyclone | - | - |
| 1973-03-01 08:00 | -12.3°S, 172.7°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1973-03-01 14:00 | -12.9°S, 173.6°E | Tropical Cyclone | - | - |
| 1973-03-01 20:00 | -13.6°S, 174.9°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1973-03-02 02:00 | -14.5°S, 177.1°E | Tropical Cyclone | - | - |
| 1973-03-02 08:00 | -15.6°S, 179.5°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1973-03-02 14:00 | -16.9°S, 178.5°W | Tropical Cyclone | - | - |
| 1973-03-02 20:00 | -18.4°S, 176.8°W | Tropical Depression | 16.5 | 997 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1973060S11171. There is no official Chinese name for this region, so the original English name is used. Intensity categories follow the classifications of the local agency in the region and are converted from 1-min sustained wind using the WMO factor for reference only. Data notes · Incorrect translation?
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