Tropical Cyclone Celimene/Sam
● 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.
Celimene/Sam at 1977-12-13 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Severe Tropical Storm, max wind 约 27.8 m/s (1 分钟平均) , minimum central pressure 990 hPa, at 1977-12-23 14:00:00前后结束, total 记录 42 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1977-12-13 08:00 | -7.6°S, 96.5°E | Tropical Depression | 11.3 | 1006 |
| 1977-12-13 20:00 | -8.4°S, 93.4°E | Tropical Depression | 13.9 | 1003 |
| 1977-12-14 08:00 | -9.4°S, 90.2°E | Tropical Depression | 13.9 | 1003 |
| 1977-12-14 20:00 | -10.0°S, 88.3°E | Tropical Disturbance | 13.9 | 1002 |
| 1977-12-15 08:00 | -10.3°S, 87.2°E | Tropical Depression | 16.5 | 999 |
| 1977-12-15 20:00 | -10.4°S, 86.4°E | Moderate Tropical Storm | 19.5 | 995 |
| 1977-12-16 08:00 | -10.8°S, 85.7°E | Moderate Tropical Storm | 22.1 | 994 |
| 1977-12-16 20:00 | -11.3°S, 84.8°E | Moderate Tropical Storm | 24.7 | 992 |
| 1977-12-17 08:00 | -11.8°S, 84.2°E | Severe Tropical Storm | 27.8 | 990 |
| 1977-12-17 20:00 | -12.4°S, 84.2°E | Moderate Tropical Storm | 24.7 | 994 |
| 1977-12-18 08:00 | -13.0°S, 84.7°E | Tropical Depression | 16.5 | 999 |
| 1977-12-18 20:00 | -13.6°S, 84.6°E | Tropical Depression | 16.5 | 1001 |
| 1977-12-19 08:00 | -14.0°S, 83.9°E | Tropical Disturbance | 13.9 | 1003 |
| 1977-12-19 20:00 | -14.6°S, 83.1°E | Tropical Disturbance | 13.9 | 1001 |
| 1977-12-20 08:00 | -15.1°S, 82.6°E | Tropical Depression | 16.5 | 999 |
| 1977-12-20 20:00 | -15.4°S, 80.9°E | Tropical Disturbance | 13.9 | 1004 |
| 1977-12-21 08:00 | -15.0°S, 77.9°E | Tropical Cyclone | - | - |
| 1977-12-21 20:00 | -15.3°S, 75.8°E | Tropical Cyclone | - | - |
| 1977-12-22 08:00 | -15.8°S, 74.1°E | Tropical Cyclone | - | - |
| 1977-12-22 20:00 | -17.9°S, 71.4°E | Tropical Cyclone | - | - |
| 1977-12-23 08:00 | -17.5°S, 67.9°E | Tropical Cyclone | - | - |
| 1977-12-23 14:00 | -16.9°S, 65.8°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), ID 1977347S08097 / SH061978. There is no official Chinese name for this basin; the original English name is displayed. Intensity classifications follow local agencies in the respective basin (converted from 1-minute sustained winds using WMO coefficients) and are for reference only. Data notes · Incorrect translation?
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