Tropical Cyclone Dalida/Deidre/Delid
● 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.
Dalida/Deidre/Delid at 1973-12-20 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Cyclone , max wind 约 44.2 m/s (1 分钟平均) , minimum central pressure 966 hPa, at 1974-01-06 14:00:00前后结束, total 记录 70 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1973-12-20 08:00 | -10.0°S, 98.0°E | Tropical Cyclone | - | - |
| 1973-12-21 02:00 | -11.1°S, 97.5°E | Tropical Depression | 13.9 | 1002 |
| 1973-12-21 20:00 | -11.9°S, 96.6°E | Tropical Depression | 16.5 | 996 |
| 1973-12-22 14:00 | -12.3°S, 95.5°E | Category 1 Tropical Cyclone | 24.7 | 988 |
| 1973-12-23 08:00 | -12.8°S, 92.9°E | Tropical Cyclone | - | - |
| 1973-12-24 02:00 | -13.5°S, 89.8°E | Severe Tropical Storm | 30.4 | 981 |
| 1973-12-24 20:00 | -14.0°S, 86.1°E | Tropical Cyclone | 36 | 975 |
| 1973-12-25 14:00 | -14.8°S, 82.1°E | Tropical Cyclone | 38.6 | 970 |
| 1973-12-26 08:00 | -14.9°S, 79.4°E | Tropical Cyclone | - | - |
| 1973-12-27 02:00 | -15.1°S, 77.0°E | Tropical Cyclone | - | - |
| 1973-12-27 20:00 | -15.6°S, 74.4°E | Tropical Cyclone | - | - |
| 1973-12-28 14:00 | -17.1°S, 71.6°E | Tropical Cyclone | - | - |
| 1973-12-29 08:00 | -19.5°S, 70.0°E | Tropical Cyclone | - | - |
| 1973-12-30 02:00 | -23.3°S, 69.2°E | Tropical Cyclone | - | - |
| 1973-12-30 20:00 | -27.5°S, 69.4°E | Tropical Cyclone | - | - |
| 1973-12-31 14:00 | -29.3°S, 74.1°E | Tropical Cyclone | - | - |
| 1974-01-01 08:00 | -28.8°S, 74.9°E | Tropical Cyclone | - | - |
| 1974-01-02 02:00 | -26.9°S, 74.0°E | Tropical Cyclone | - | - |
| 1974-01-02 20:00 | -26.4°S, 71.0°E | Tropical Cyclone | - | - |
| 1974-01-03 14:00 | -27.1°S, 67.6°E | Tropical Cyclone | - | - |
| 1974-01-04 08:00 | -27.7°S, 65.7°E | Extratropical cyclone | - | - |
| 1974-01-05 02:00 | -29.2°S, 64.2°E | Extratropical cyclone | - | - |
| 1974-01-05 20:00 | -31.0°S, 64.0°E | Extratropical cyclone | - | - |
| 1974-01-06 14:00 | -31.0°S, 62.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1973354S10098 / SH111974. There is no official Chinese name for this basin, so the original English name is used. Intensity is classified by the local agency for the region, converted from 1-minute sustained winds using the WMO factor, and is for reference only. Data notes · Incorrect translation?
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