1975North Indian Ocean未命名气旋
● 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.
未命名 at 1975-05-01 08:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为极强The Cyclone Storm, max wind 约 48.9 m/s (1 分钟平均) , at 1975-05-11 20:00:00前后结束, total 记录 43 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1975-05-01 08:00 | 8.5°N, 71.5°E | Tropical Cyclone | - | - |
| 1975-05-01 20:00 | 10.0°N, 71.2°E | Tropical Cyclone | - | - |
| 1975-05-02 08:00 | 10.5°N, 71.1°E | Tropical Cyclone | - | - |
| 1975-05-02 20:00 | 10.5°N, 71.1°E | The Cyclone Storm | 20.6 | - |
| 1975-05-03 08:00 | 10.9°N, 71.0°E | 强The Cyclone Storm | 25.7 | - |
| 1975-05-03 20:00 | 11.6°N, 70.7°E | 强The Cyclone Storm | 28.3 | - |
| 1975-05-04 08:00 | 11.9°N, 70.6°E | 强The Cyclone Storm | 33.4 | - |
| 1975-05-04 20:00 | 12.5°N, 70.4°E | 特强The Cyclone Storm | 36 | - |
| 1975-05-05 08:00 | 13.4°N, 70.1°E | 特强The Cyclone Storm | 38.6 | - |
| 1975-05-05 20:00 | 14.0°N, 69.8°E | 特强The Cyclone Storm | 43.7 | - |
| 1975-05-06 08:00 | 14.4°N, 67.5°E | 特强The Cyclone Storm | 41.2 | - |
| 1975-05-06 20:00 | 14.0°N, 68.5°E | 特强The Cyclone Storm | 36 | - |
| 1975-05-07 08:00 | 13.6°N, 67.2°E | 特强The Cyclone Storm | 36 | - |
| 1975-05-07 20:00 | 14.0°N, 66.0°E | 特强The Cyclone Storm | 41.2 | - |
| 1975-05-08 08:00 | 14.1°N, 65.6°E | 特强The Cyclone Storm | 46.3 | - |
| 1975-05-08 20:00 | 15.0°N, 65.0°E | 特强The Cyclone Storm | 46.3 | - |
| 1975-05-09 08:00 | 15.4°N, 64.8°E | 特强The Cyclone Storm | 41.2 | - |
| 1975-05-09 20:00 | 16.0°N, 64.5°E | 特强The Cyclone Storm | 36 | - |
| 1975-05-10 08:00 | 16.4°N, 64.5°E | 强The Cyclone Storm | 30.9 | - |
| 1975-05-10 20:00 | 17.0°N, 64.5°E | 强The Cyclone Storm | 25.7 | - |
| 1975-05-11 08:00 | 17.9°N, 64.5°E | The Cyclone Storm | 20.6 | - |
| 1975-05-11 20:00 | 19.4°N, 64.6°E | Deep Depression | 15.4 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1975121N09072 / IO021975. This sea area has no official Chinese name and is shown under its English name. Intensity grades follow the classifications of local agencies in the region (converted from 1-min sustained wind using WMO factors), for reference only. Data notes · Incorrect translation?
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