Tropical Cyclone Greta
● 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.
Greta at 1979-01-08 20:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 25.7 m/s (1 分钟平均) , minimum central pressure 992 hPa, at 1979-01-16 14:00:00前后结束, total 记录 32 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1979-01-08 20:00 | -13.9°S, 137.2°E | Tropical Depression | 15.4 | - |
| 1979-01-09 08:00 | -13.5°S, 138.0°E | Tropical Depression | 18 | - |
| 1979-01-09 20:00 | -13.1°S, 139.3°E | Tropical Depression | 18 | - |
| 1979-01-10 08:00 | -12.8°S, 141.1°E | Category 1 Tropical Cyclone | 25.7 | - |
| 1979-01-10 20:00 | -13.1°S, 143.1°E | Category 1 Tropical Cyclone | 23.1 | - |
| 1979-01-11 08:00 | -13.8°S, 143.8°E | Category 1 Tropical Cyclone | 23.1 | - |
| 1979-01-11 20:00 | -14.8°S, 144.7°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1979-01-12 08:00 | -15.5°S, 144.0°E | Tropical Depression | 18 | - |
| 1979-01-12 20:00 | -16.7°S, 139.9°E | Tropical Depression | 15.4 | - |
| 1979-01-13 08:00 | -17.5°S, 140.0°E | Tropical Depression | 15.4 | - |
| 1979-01-13 20:00 | -18.2°S, 137.8°E | Extratropical cyclone | - | - |
| 1979-01-14 08:00 | -19.4°S, 135.0°E | Extratropical cyclone | 13.9 | 996 |
| 1979-01-14 20:00 | -20.6°S, 133.0°E | Extratropical cyclone | - | - |
| 1979-01-15 08:00 | -21.8°S, 132.0°E | Extratropical cyclone | 13.9 | 996 |
| 1979-01-15 20:00 | -22.9°S, 132.3°E | Extratropical cyclone | - | - |
| 1979-01-16 08:00 | -23.6°S, 133.2°E | Extratropical cyclone | 13.9 | 995 |
| 1979-01-16 14:00 | -23.8°S, 133.5°E | Extratropical cyclone | 16.5 | 992 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1979008S14137 / SH081979. There is no official Chinese name for this basin, so the original English name is used. Intensity categories follow the classifications of the local agency for the region, converted from 1-minute sustained winds using the WMO factor, and are provided for reference only. Data notes · Incorrect translation?
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