Tropical Cyclone Denise
● 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.
Denise at 1975-05-19 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 24.7 m/s (1 分钟平均) , minimum central pressure 992 hPa, at 1975-05-25 08:00:00前后结束, total 记录 26 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1975-05-19 02:00 | -12.0°S, 106.2°E | Tropical Depression | 13.9 | 1003 |
| 1975-05-19 14:00 | -11.3°S, 107.0°E | Tropical Depression | 13.9 | 1003 |
| 1975-05-20 02:00 | -12.0°S, 106.3°E | Tropical Depression | 13.9 | 1003 |
| 1975-05-20 14:00 | -12.4°S, 105.5°E | Tropical Depression | 16.5 | 999 |
| 1975-05-21 02:00 | -12.6°S, 104.7°E | Category 1 Tropical Cyclone | 19.5 | 998 |
| 1975-05-21 14:00 | -12.6°S, 103.3°E | Category 1 Tropical Cyclone | 22.1 | 993 |
| 1975-05-22 02:00 | -12.4°S, 101.7°E | Category 1 Tropical Cyclone | 24.7 | 992 |
| 1975-05-22 14:00 | -12.4°S, 99.9°E | Category 1 Tropical Cyclone | 24.7 | 992 |
| 1975-05-23 02:00 | -12.5°S, 97.8°E | Category 1 Tropical Cyclone | 19.5 | 995 |
| 1975-05-23 14:00 | -12.5°S, 96.0°E | Category 1 Tropical Cyclone | 19.5 | 995 |
| 1975-05-24 02:00 | -12.6°S, 94.8°E | Tropical Depression | 16.5 | 997 |
| 1975-05-24 14:00 | -12.8°S, 93.3°E | Tropical Depression | 13.9 | 999 |
| 1975-05-25 02:00 | -13.3°S, 91.5°E | Tropical Depression | 13.9 | 1001 |
| 1975-05-25 08:00 | -13.7°S, 90.5°E | Tropical Depression | 13.9 | 1003 |
Data source: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1975139S12106. There is no official Chinese name for this storm, so the original English name is used. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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