Tropical Cyclone Estelle
● 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.
Estelle at 1979-02-10 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Moderate Tropical Storm, max wind 约 20.1 m/s (1 分钟平均) , minimum central pressure 991 hPa, at 1979-02-18 20:00:00前后结束, total 记录 34 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1979-02-10 14:00 | -19.0°S, 51.3°E | Tropical Disturbance | 11.3 | 1003 |
| 1979-02-11 02:00 | -17.1°S, 50.5°E | Tropical Cyclone | - | - |
| 1979-02-11 14:00 | -16.7°S, 52.8°E | Tropical Disturbance | 15.4 | 997 |
| 1979-02-12 02:00 | -16.9°S, 55.0°E | Tropical Cyclone | - | - |
| 1979-02-12 14:00 | -17.4°S, 57.6°E | Moderate Tropical Storm | 20.1 | 991 |
| 1979-02-13 02:00 | -17.7°S, 59.9°E | Tropical Cyclone | - | - |
| 1979-02-13 14:00 | -17.9°S, 62.2°E | Tropical Disturbance | 15.4 | 997 |
| 1979-02-14 02:00 | -18.7°S, 62.2°E | Tropical Cyclone | - | - |
| 1979-02-14 14:00 | -19.4°S, 61.5°E | Tropical Disturbance | 13.4 | 1000 |
| 1979-02-15 02:00 | -21.0°S, 60.1°E | Tropical Cyclone | - | - |
| 1979-02-15 14:00 | -22.9°S, 59.0°E | Tropical Disturbance | 11.3 | 1003 |
| 1979-02-16 02:00 | -23.3°S, 55.5°E | Tropical Cyclone | - | - |
| 1979-02-16 14:00 | -23.0°S, 52.0°E | Tropical Disturbance | 11.3 | 1003 |
| 1979-02-17 02:00 | -23.3°S, 50.9°E | Tropical Cyclone | - | - |
| 1979-02-17 14:00 | -23.7°S, 50.1°E | Tropical Cyclone | - | - |
| 1979-02-18 02:00 | -24.3°S, 48.5°E | Tropical Cyclone | - | - |
| 1979-02-18 14:00 | -24.3°S, 48.0°E | Tropical Cyclone | - | - |
| 1979-02-18 20:00 | -26.0°S, 48.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1979041S19051 / SH141979. This region has no official Chinese name, so the original English name is used. Intensity is classified by the regional agency based on the basin using 1-minute sustained winds converted with the WMO factor, for reference only. Data notes · Incorrect translation?
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