TradeFlow

Some time ago the folks at IDV Solutions put together some shipping traffic maps for a client by aggregating a one-day range of many vessel tracking feeds, smooshed into a Visual Fusion heatmap, and served up in the web-based client.

 

With some image export sneakiness (here's how), the heatmap feed is exported in baffling detail, then tossed into the good ol' chalkboard. I have a chalkboard compulsion these days; it's irrational, I can't control it.

Done