Tropical Cyclone Norman
● 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.
Norman at 1977-03-09 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 22.1 m/s (1 分钟平均) , minimum central pressure 980 hPa, at 1977-03-24 20:00:00前后结束, total 记录 63 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1977-03-09 08:00 | -11.0°S, 168.0°E | Tropical Depression | 18 | - |
| 1977-03-10 02:00 | -11.7°S, 166.3°E | Tropical Depression | 18 | - |
| 1977-03-10 20:00 | -14.1°S, 165.1°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1977-03-11 14:00 | -16.6°S, 164.5°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1977-03-12 08:00 | -17.4°S, 162.0°E | Tropical Depression | 18 | 997 |
| 1977-03-13 02:00 | -16.5°S, 162.2°E | Tropical Cyclone | - | - |
| 1977-03-13 20:00 | -16.0°S, 165.0°E | Tropical Depression | 16.5 | 997 |
| 1977-03-14 14:00 | -16.0°S, 165.5°E | Tropical Cyclone | - | - |
| 1977-03-15 08:00 | -16.5°S, 165.5°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1977-03-16 02:00 | -18.0°S, 167.4°E | Tropical Cyclone | - | - |
| 1977-03-16 20:00 | -19.5°S, 170.5°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1977-03-17 14:00 | -21.0°S, 171.8°E | Tropical Cyclone | - | - |
| 1977-03-18 08:00 | -22.5°S, 172.0°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1977-03-19 02:00 | -24.8°S, 171.8°E | Tropical Cyclone | - | - |
| 1977-03-19 20:00 | -26.5°S, 171.5°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1977-03-20 14:00 | -28.0°S, 171.5°E | Tropical Cyclone | - | - |
| 1977-03-21 08:00 | -30.0°S, 172.0°E | Tropical Depression | 16.5 | 997 |
| 1977-03-22 02:00 | -32.3°S, 172.5°E | Tropical Cyclone | - | - |
| 1977-03-22 20:00 | -34.5°S, 172.5°E | Tropical Depression | 16.5 | 997 |
| 1977-03-23 14:00 | -36.0°S, 171.9°E | Tropical Cyclone | - | - |
| 1977-03-24 08:00 | -38.0°S, 177.0°E | Tropical Depression | 16.5 | 997 |
| 1977-03-24 20:00 | -40.0°S, 177.0°W | Tropical Depression | 16.5 | 997 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1977068S11168 / SH211977. 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, based on 1-minute sustained winds converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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