Typhoon Ivan trajectory analysis
Track and Turning Characteristics
Typhoon Ivan (199720) 的生命史长达11天, 整体路径呈现显著的“W进-N折-NE转 toward ”的抛物线形态. formed初期, 系统自150°E附近 toward NW direction稳定Moving, 横穿Philippines以E洋面. 在10月18日抵达126.3°E, 15.2°N附近时, 其W行分量达到极值, 随后路径曲率发生明显变化. 10月19日至20日期间, Typhoon 在122°E至124°E经度带内维持短暂徘徊并逐渐转为N toward Moving, 这一阶段可视为路径的关键转折点. Go to 10月21日后, 受引导气流改变影响, 系统开始加速 toward NE, 最终 at 10月25日在141°E, 29°N附近减弱消散. 全生命周期内无Landfall记录, 主要活动区域集中在开阔洋面, 未对land造成直接冲击.
Intensity Evolution and Peak Status
Ivan的Intensity演变过程完整且剧烈, 经历了从Tropical Depression到Super Typhoon的快速增强期, 以及随后的缓慢减弱期. 初始阶段, 系统在48h内由12m/s的Tropical Depression迅速 intensified into 30m/s的Severe Tropical Storm. 10月17日至18日为爆发式增强期, Pressure在36h内由965hPa骤降至930hPa, max wind 由40m/s跃升至55m/s, at 10月18日14:00达到巅峰状态, 确认为Super Typhoon等级. 巅峰维持Time较短, 随后Go to 减弱通道. 值得注意的是, 在10月20日夜间至21日凌晨, wind speed曾出现从33m/s反弹至25m/s以上的波动, 但整体Trend不可逆地走 toward 衰弱. 最终在N上过程中, 受高纬度环境因素影响, intensity 逐步降格为Tropical Depression直至消亡.
Comparison of historical periods
As the 20th typhoon of 1997, Ivan exhibited the remote-ocean, high-intensity characteristics typical of late-season typhoons. Compared with other active typhoons that year, its minimum central pressure of 930hPa and maximum winds of 55m/s indicated a very compact core structure and immense energy. Despite making no landfall, its long lifespan and broad coverage reflected favorable support from the Northwest Pacific warm pool for typhoon development that year. Compared with a typical autumn typhoon, Ivan reached super typhoon intensity at a relatively low latitude near 15°N and maintained at least severe tropical storm intensity at higher latitudes above 20°N, demonstrating strong environmental adaptability and a deep warm-core structure.
Typhoon Ivan routes
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 10-14 02:00 | 11.5°N
150°E | Tropical Depression | 12 m/s
1002 hPa | - |
| 10-14 20:00 | 12.2°N
145.2°E | Tropical Storm | 18 m/s
996 hPa | W |
| 10-15 14:00 | 13.5°N
140.9°E | Tropical Storm | 23 m/s
990 hPa | WNW |
| 10-16 08:00 | 14.4°N
137.4°E | Severe Tropical Storm | 30 m/s
980 hPa | W |
| 10-17 02:00 | 14.7°N
133.1°E | Typhoon | 40 m/s
965 hPa | W |
| 10-17 20:00 | 14.5°N
129.5°E | Severe Typhoon | 50 m/s
940 hPa | W |
| 10-18 14:00 | 15.2°N
126.3°E | Super Typhoon | 55 m/s
930 hPa | WNW |
| 10-19 08:00 | 16.6°N
124°E | Severe Typhoon | 50 m/s
940 hPa | NW |
| 10-20 02:00 | 18°N
122.4°E | Severe Typhoon | 45 m/s
950 hPa | NNW |
| 10-20 20:00 | 18.8°N
121.9°E | Typhoon | 33 m/s
975 hPa | NNE |
| 10-21 14:00 | 19.9°N
123.7°E | Severe Tropical Storm | 25 m/s
985 hPa | NE |
| 10-22 08:00 | 20.7°N
126.5°E | Tropical Storm | 23 m/s
990 hPa | ENE |
| 10-23 02:00 | 22.8°N
128.1°E | Tropical Storm | 23 m/s
990 hPa | NE |
| 10-23 20:00 | 24.7°N
131°E | Severe Tropical Storm | 25 m/s
985 hPa | ENE |
| 10-24 14:00 | 26.7°N
134.7°E | Tropical Storm | 20 m/s
992 hPa | ENE |
| 10-25 08:00 | 28.8°N
139.7°E | Tropical Depression | 15 m/s
996 hPa | ENE |
| 10-25 14:00 | 29°N
141°E | Tropical Depression | 12 m/s
998 hPa | E |
Sampled rows shown; all 47 track points are available on the interactive map or via the public API .
FAQ
Typhoon Ivan was the 1997 Typhoon.
International code for Typhoon Ivan is 199720, is 1997 number 20 Typhoon, international name IVAN.
What is the highest level of Typhoon Ivan?
Typhoon Ivan peak intensity is Super Typhoon, max wind 55m/s, minimum central pressure 930 hPa.
Is there a Typhoon Ivan Landfall?
According to records, Typhoon Ivan is not in our coastal landfall.
Where can I view typhoon Ivan's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Ivan's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/199720.
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