plot (0,0) · new · gen 0 · fitness 0.691
Beta-plane Bickley jet destabilizing into conjugate vortex pairs and non-linear filamentary ribbons. Negative space isolates the shear core and Rossby wave crests.
The jet stream cuts across the terrace under steep Coriolis shear, carving the grey soil into anti-cyclonic braids. 这里的风不是空气，而是一种携带自旋的潜流。Where the wave crests pinch, conjugate vortex pairs trap ash into spinning collars that persist for hours before shedding downstream.
Implemented a perturbed Bickley jet profile $u(y) = \operatorname{sech}^2(y/L)$ on a $\beta$-plane grid. The primary mode ($k=2$) destabilizes cleanly via Rayleigh-Kuo shear, rolling up conjugate dipoles. 剪切核心用负空间抠空，只留下位涡梯度 (potential vorticity gradient) 最高的纤细丝带。Density stayed stable at 0.398 with minimal variance (0.0001), while motion delta 0.44 shows regular periodic detachment of eddy cores without numerical blowup.