The SummaryTyphoon Betty (international code 197511) is a 1975 Northwest Pacific typhoon; peak intensity Severe Typhoon, max wind 48m/s, minimum central pressure 950hPa, not in China Landfall, 1975-09-24 was numbered off, recording 29 track points.
Typhoon Betty, international code 197511, international name BETTY, 1975 Northwest Pacific typhoon. Formed: 1975-09-17 00:00:00, ended: 1975-09-24 00:00:00. Peak intensity: Severe Typhoon, minimum central pressure: 950 hPa, max wind: 48m/s.
Typhoon Betty at 1975-09-17 00:00:00 at 14°N, 144°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Severe Typhoon intensity with max winds of 48 m/s (~173 km/h) and a minimum central pressure of 950hPa, recorded at 1975-09-22 00:00:00.
Typhoon Betty gradually weakened and was numbered off on 1975-09-24 00:00:00 was numbered off; its lifecycle recorded 29 track points.
Typhoon Betty (197511) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现典型的W行转NW行Trend. formed初期 (9月17日至18日) , 系统位 at 14°N-17°N, 139°E-144°E之间, 主要 toward W, The latitude变化较小, During快速W移. 9月19日后, 随着系统Intensity提升, 路径逐渐转 toward NW direction. 从坐标序列分析, 9月20日至22日为关键Moving阶段, Typhoon 中心从134.5°E迅速W进至123.6°E, 同时纬度由19.2°NN抬至22.6°N, 显示出稳定的NW toward Moving分量. 值得注意的是, 在9月22日00:00达到peak intensity后, 路径W toward 分量依然显著, 直至9月23日Go to S海NE部海域 (119°E附近) . 整个生命周期内未出现Landfall记录, 最终 at 9月24日在24°N, 115.1°E附近减弱消散. track points分布均匀, total 29个采样点, 反映了其在开阔洋面及近海区域的完整演变过程.
Betty的Intensity演变经历了完整的“ formed-加强-巅峰-减弱”周期. 9月17日为Nameless (12m/s) , 经过约48h的缓慢增强, at 9月19日升级为Tropical Storm. 随后Go to 快速增强期, 9月20日12:00发展为Typhoon (33m/s) , 并在接下来的48h内持续加强. 9月22日00:00, 系统在22.6°N, 123.6°E附近达到peak intensity, max wind 录得48m/s, 等级为Severe Typhoon. 巅峰维持Time较短, 随后受环境因素影响开始减弱, 9月22日12:00wind speed降至38m/s, 降级为Typhoon ; 9月23日进一步 weakened into Severe Tropical Storm及Tropical Storm, 最终 at 9月24日回归NamelessIntensity.
与同名History相比, 1975年Betty的peak intensity (Severe Typhoon, 48m/s) 弱 at 1987年, 1980年及1972年的BettyTyphoon (均为Super Typhoon级别) , 但强 at 1984年Betty (Severe Tropical Storm) . 这表明在“Betty”这一命名序列中, 1975年的系统属 at 中等偏强水平, 虽未达到Super Typhoon量级, 但仍具备显著的破坏潜力, 其生命史后期的快速减弱特征亦值得气象学研究关注.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1975-09-17 00:00:00 | 14°N | 144°E | Nameless | 12 | - | |
| 1975-09-17 12:00:00 | 16.7°N | 142°E | Nameless | 15 | 1006 | |
| 1975-09-18 00:00:00 | 17°N | 139.4°E | Nameless | 17 | 1004 | |
| 1975-09-18 12:00:00 | 16.9°N | 137.6°E | Nameless | 17 | 998 | |
| 1975-09-19 00:00:00 | 16.6°N | 136.6°E | Tropical Storm | 20 | 990 | |
| 1975-09-19 12:00:00 | 17.2°N | 136.1°E | Tropical Storm | 23 | 985 | |
| 1975-09-20 00:00:00 | 19.2°N | 134.5°E | Severe Tropical Storm | 28 | 980 | |
| 1975-09-20 12:00:00 | 20.7°N | 132°E | Typhoon | 33 | 975 | |
| 1975-09-21 00:00:00 | 22°N | 129.1°E | Typhoon | 38 | 970 | |
| 1975-09-21 12:00:00 | 22.7°N | 126.1°E | Severe Typhoon | 43 | 955 | |
| 1975-09-22 00:00:00 | 22.6°N | 123.6°E | Severe Typhoon | 48 | 950 | |
| 1975-09-22 12:00:00 | 22.9°N | 120.8°E | Typhoon | 38 | 965 | |
| 1975-09-23 00:00:00 | 22.9°N | 119°E | Severe Tropical Storm | 30 | 985 | |
| 1975-09-23 12:00:00 | 23.7°N | 116.6°E | Tropical Storm | 23 | 985 | |
| 1975-09-24 00:00:00 | 24°N | 115.1°E | Nameless | 12 | 1002 |
Sampled rows shown; all 29 track points are available on the interactive map or via the public API .
Typhoon Betty's international code is 197511, is the 1975 number 11 Typhoon, international name BETTY.
Typhoon Betty peak intensity is Severe Typhoon, max wind 48m/s, minimum central pressure 950 hPa.
According to records, Typhoon Betty is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Betty's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197511.
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