Why does the double typhoon dance?

Analysis of typhoon interactions.

The Fujiwhara Effect

当两个Typhoon 距离足够近 (一般小 at 1400 km) 时, 它们会绕着两者连线的中点 (质心) The clock rotates against each other., 这就是藤原效应, 由Japan气象学家藤原咲平 at 1921 年提出.

Common forms of interaction.

• rotated: Two Intensity equivalent typhoon circular centrifuges.
• annexed: Severe Typhoon" Eat" Weak Typhoon, The Weak Circle is Joined.
• attractedSevere Typhoon changes weak typhoon track, causing forecast difficulty.

Why Double Typhon Forecast Is Difficult

The fountain effect caused the typhoon track to turn, stagnate, suddenly turn toward and other abnormal behaviors, and the differences in forecast among meteorological agencies tended to increase significantly.