Effects of Typhoon Fitow residual circulation on the relationship between surface wind field and precipitation in Shanghai
Yuqi Tang, Jishi Zhang, Caijun Yue, Juan Sun, Zhihui Han, Wen Gu, Liping Deng, Yao Yao · 2025
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Description
Yuqi Tang and co-authors dissect how the leftover circulation of Typhoon Fitow shaped a bout of rain over Shanghai in 2013. The rain fell unevenly across the city. Using weather station data, satellite products, reanalysis fields, and the typhoon's track, the team linked the surface wind field to where the rain fell hardest and longest.
Three findings stand out. The city center slowed the eastward drift of the northerly wind from the typhoon's remains. The calm zone and bent winds round the center forced air to converge in the districts round it. Slow-moving storm cells then parked the rain in place. A diagnostic called Q-vector convergence held strong while rain lasted. It faded just before the rain stopped, and the rain died within two hours of its weakening. A city's skyline, bending the wind, decided which neighborhoods flooded.
Catalog record
| CREATOR | Yuqi Tang, Jishi Zhang, Caijun Yue, Juan Sun, Zhihui Han, Wen Gu, Liping Deng, Yao Yao |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 35 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |