This page was opened directly from disk (file://), where browsers block data loading.
The time series below work; for the vortex maps & cross-sections, serve the site folder over HTTP
(e.g. python3 -m http.server in the site root, then open
http://localhost:8000/pages/software/2026.DA.short.tutorial/vort3d-demo.html).
Hover a series to light it up; drag, slide or play to step in time; click to pin.