Tropical Cyclone Deborah/Robyn
● 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.
Deborah/Robyn at 1975-01-14 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 964 hPa, at 1975-01-29 14:00:00前后结束, total 记录 62 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1975-01-14 08:00 | -11.2°S, 91.1°E | Tropical Depression | 13.9 | 1004 |
| 1975-01-15 02:00 | -12.4°S, 91.7°E | Tropical Depression | 13.9 | 1000 |
| 1975-01-15 20:00 | -14.4°S, 91.7°E | Category 1 Tropical Cyclone | 22.1 | 994 |
| 1975-01-16 14:00 | -15.5°S, 89.9°E | Severe Tropical Storm | 27.8 | 985 |
| 1975-01-17 08:00 | -16.1°S, 87.3°E | Tropical Cyclone | 38.6 | 973 |
| 1975-01-18 02:00 | -17.2°S, 84.2°E | Tropical Cyclone | 41.7 | 968 |
| 1975-01-18 20:00 | -17.9°S, 81.5°E | Tropical Cyclone | - | - |
| 1975-01-19 14:00 | -18.8°S, 78.0°E | Tropical Cyclone | - | - |
| 1975-01-20 08:00 | -19.6°S, 75.1°E | Tropical Cyclone | - | - |
| 1975-01-21 02:00 | -20.2°S, 71.4°E | Tropical Cyclone | - | - |
| 1975-01-21 20:00 | -21.1°S, 68.0°E | Tropical Cyclone | - | - |
| 1975-01-22 14:00 | -22.3°S, 64.6°E | Tropical Cyclone | - | - |
| 1975-01-23 08:00 | -22.9°S, 61.3°E | Tropical Cyclone | - | - |
| 1975-01-24 02:00 | -23.8°S, 56.5°E | Tropical Cyclone | - | - |
| 1975-01-24 20:00 | -24.5°S, 51.7°E | Tropical Cyclone | - | - |
| 1975-01-25 14:00 | -25.4°S, 46.5°E | Tropical Cyclone | - | - |
| 1975-01-26 08:00 | -26.4°S, 42.1°E | Tropical Cyclone | - | - |
| 1975-01-27 02:00 | -28.3°S, 39.9°E | Tropical Cyclone | - | - |
| 1975-01-27 20:00 | -30.4°S, 40.9°E | Tropical Cyclone | - | - |
| 1975-01-28 14:00 | -33.2°S, 44.0°E | Tropical Cyclone | - | - |
| 1975-01-29 08:00 | -36.7°S, 51.7°E | Extratropical cyclone | - | - |
| 1975-01-29 14:00 | -37.2°S, 55.1°E | Tropical Disturbance | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1975014S11091 / SH141975. There is no official Chinese translation for this storm, so the original English name is used. Intensity is classified by the local agency for the region, based on 1-minute sustained wind converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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