Tropical Cyclone Marian
● Data reliability: ReliableWeather satellites monitored it throughout, so its track and intensity are relatively accurate (Atlantic and E. Pacific since 1966, other basins since 1980).
Marian at 1991-04-09 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 4 tropical cyclone , max wind 约 48.9 m/s (1 分钟平均) , minimum central pressure 930 hPa, at 1991-04-19 08:00:00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 |
|---|
| 1991-04-09 02:00 | -10.3°S, 131.7°E | Tropical Depression | 7.7 | - |
| 1991-04-09 14:00 | -9.4°S, 130.3°E | Tropical Depression | 7.7 | 1004 |
| 1991-04-10 02:00 | -9.3°S, 128.9°E | Tropical Depression | 12.9 | 1002 |
| 1991-04-10 14:00 | -9.5°S, 127.5°E | Tropical Depression | 12.9 | 998 |
| 1991-04-11 02:00 | -10.1°S, 126.1°E | Tropical Depression | 15.4 | 991 |
| 1991-04-11 14:00 | -10.8°S, 124.8°E | Tropical Depression | 18 | 978 |
| 1991-04-12 02:00 | -11.5°S, 123.6°E | Category 2 Tropical Cyclone | 28.3 | 962 |
| 1991-04-12 14:00 | -12.2°S, 122.1°E | Category 3 tropical cyclone | 36 | 950 |
| 1991-04-13 02:00 | -13.0°S, 120.5°E | Category 3 tropical cyclone | 41.2 | 935 |
| 1991-04-13 14:00 | -13.8°S, 120.0°E | Category 3 tropical cyclone | 46.3 | 935 |
| 1991-04-14 02:00 | -14.1°S, 119.7°E | Category 4 tropical cyclone | 48.9 | 940 |
| 1991-04-14 14:00 | -13.7°S, 119.6°E | Category 3 tropical cyclone | 46.3 | 945 |
| 1991-04-15 02:00 | -13.6°S, 120.1°E | Category 3 tropical cyclone | 41.2 | 950 |
| 1991-04-15 14:00 | -14.0°S, 119.7°E | Category 2 Tropical Cyclone | 33.4 | 962 |
| 1991-04-16 02:00 | -13.9°S, 118.8°E | Category 2 Tropical Cyclone | 28.3 | 980 |
| 1991-04-16 14:00 | -14.5°S, 116.9°E | Category 1 Tropical Cyclone | 25.7 | 995 |
| 1991-04-17 02:00 | -14.6°S, 115.0°E | Category 1 Tropical Cyclone | 23.1 | 995 |
| 1991-04-17 14:00 | -15.3°S, 113.8°E | Category 1 Tropical Cyclone | 23.1 | 995 |
| 1991-04-18 02:00 | -16.4°S, 112.5°E | Category 1 Tropical Cyclone | 20.6 | 998 |
| 1991-04-18 14:00 | -18.0°S, 111.1°E | Tropical Depression | 15.4 | 998 |
| 1991-04-19 02:00 | -20.6°S, 109.7°E | Tropical Depression | 12.9 | 1000 |
| 1991-04-19 08:00 | -21.8°S, 109.2°E | Tropical Depression | 12.9 | 1002 |
Data source: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1991099S10132 / SH191991. This basin has no official Chinese name, so the original English name is used. Categories follow the local agency classification for the basin, converted from 1-min sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?
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