Tropical Cyclone Jana
● 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).
Jana at 2003-12-06 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 3 tropical cyclone , max wind 约 41.2 m/s (1 分钟平均) , minimum central pressure 950 hPa, at 2003-12-18 02:00:00前后结束, total 记录 48 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2003-12-06 08:00 | -7.0°S, 93.2°E | Tropical Depression | 11.3 | 1005 |
| 2003-12-06 20:00 | -7.4°S, 94.1°E | Tropical Depression | 7.7 | 1002 |
| 2003-12-07 08:00 | -7.7°S, 95.5°E | Tropical Depression | 18 | 995 |
| 2003-12-07 20:00 | -7.8°S, 96.5°E | Category 1 Tropical Cyclone | 25.7 | 990 |
| 2003-12-08 08:00 | -7.8°S, 97.5°E | Category 2 Tropical Cyclone | 30.9 | 980 |
| 2003-12-08 20:00 | -8.6°S, 98.6°E | Category 2 Tropical Cyclone | 33.4 | 965 |
| 2003-12-09 08:00 | -10.2°S, 99.2°E | Category 3 tropical cyclone | 38.6 | 960 |
| 2003-12-09 20:00 | -12.0°S, 99.3°E | Category 3 tropical cyclone | 41.2 | 950 |
| 2003-12-10 08:00 | -13.6°S, 99.2°E | Category 3 tropical cyclone | 41.2 | 955 |
| 2003-12-10 20:00 | -14.5°S, 98.6°E | Category 3 tropical cyclone | 36 | 965 |
| 2003-12-11 08:00 | -14.8°S, 97.4°E | Category 1 Tropical Cyclone | 25.7 | 985 |
| 2003-12-11 20:00 | -14.9°S, 95.7°E | Tropical Depression | 18 | 995 |
| 2003-12-12 08:00 | -14.9°S, 94.0°E | Tropical Depression | 15.4 | 1002 |
| 2003-12-12 20:00 | -14.7°S, 91.9°E | Tropical Depression | 12.9 | 1002 |
| 2003-12-13 08:00 | -14.4°S, 89.6°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-13 20:00 | -14.8°S, 87.0°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-14 08:00 | -14.4°S, 84.2°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-14 20:00 | -13.6°S, 81.4°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-15 08:00 | -12.8°S, 78.1°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-15 20:00 | -12.0°S, 75.3°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-16 08:00 | -11.2°S, 72.4°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-16 20:00 | -11.0°S, 69.9°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-17 08:00 | -10.9°S, 67.8°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-17 20:00 | -11.0°S, 65.7°E | Tropical Disturbance | 12.9 | 1002 |
| 2003-12-18 02:00 | -11.2°S, 65.0°E | Tropical Disturbance | 12.9 | 1002 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 2003340S07093 / SH042004. There is no official Chinese name for this system, so the original English name is used. Intensity categories follow the classifications of the local agency in the region, converted from 1-minute sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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