Tropical Cyclone Gigi/Tessie
● 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.
Gigi/Tessie at 1972-02-20 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 20.6 m/s (1 分钟平均) , minimum central pressure 950 hPa, at 1972-03-01 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 |
|---|
| 1972-02-20 08:00 | -11.8°S, 115.1°E | Category 1 Tropical Cyclone | 20.6 | 1004 |
| 1972-02-20 20:00 | -13.0°S, 112.0°E | Tropical Depression | 12.9 | 1003 |
| 1972-02-21 08:00 | -14.0°S, 109.1°E | Tropical Depression | 10.3 | 1002 |
| 1972-02-21 20:00 | -14.9°S, 107.2°E | Tropical Depression | 12.9 | 986 |
| 1972-02-22 08:00 | -15.7°S, 105.6°E | Tropical Depression | 15.4 | 970 |
| 1972-02-22 20:00 | -16.8°S, 102.1°E | Tropical Depression | 12.9 | 965 |
| 1972-02-23 08:00 | -17.5°S, 97.3°E | Tropical Depression | 12.9 | 965 |
| 1972-02-23 20:00 | -18.1°S, 93.8°E | Tropical Depression | 12.9 | 958 |
| 1972-02-24 08:00 | -19.2°S, 90.4°E | Tropical Cyclone | - | 950 |
| 1972-02-24 20:00 | -21.0°S, 89.1°E | Tropical Cyclone | - | 966 |
| 1972-02-25 08:00 | -22.6°S, 87.6°E | Tropical Cyclone | - | 980 |
| 1972-02-25 20:00 | -23.4°S, 85.8°E | Tropical Cyclone | - | 988 |
| 1972-02-26 08:00 | -24.7°S, 83.8°E | Tropical Cyclone | - | 996 |
| 1972-02-26 20:00 | -26.2°S, 81.6°E | Tropical Cyclone | - | 997 |
| 1972-02-27 08:00 | -28.5°S, 79.0°E | Tropical Cyclone | - | - |
| 1972-02-27 20:00 | -29.4°S, 77.5°E | Extratropical cyclone | - | - |
| 1972-02-28 08:00 | -30.4°S, 76.0°E | Extratropical cyclone | - | - |
| 1972-02-28 20:00 | -31.1°S, 74.2°E | Extratropical cyclone | - | - |
| 1972-02-29 08:00 | -31.4°S, 72.8°E | Extratropical cyclone | - | - |
| 1972-02-29 20:00 | -32.5°S, 72.1°E | Extratropical cyclone | - | - |
| 1972-03-01 08:00 | -34.0°S, 73.2°E | Extratropical cyclone | - | - |
| 1972-03-01 14:00 | -35.0°S, 74.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1972051S12115 / SH191972. There is no official Chinese name for this system, 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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