Stephen Gadd @docuracy.co.uk · Jul 4 🪄Historical Sea Routing is now much quicker to load, reload, and compute seasonally-plausible sailing routes, thanks to some behind-the-scenes browser magic. Find a 6500-mile return trip in under 1 second! 🛟 Do you have historical voyage data which might help with calibration? [1/3]
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This is impressive work, I wish I had a use case for it! For a paleography course I took a decade ago we looked briefly at a journal of a 17th century Scots mariner. It's been digitised at collections.st-andrews.ac.uk/item/journal... Paula Martin made a transcription, but I don't know if it's online
For sea-router calibration: 513 dated voyages from the Datini/Melis corpus (1379–1492) across galleys, carracks, brigantines and more. e.g. Venice → Mallorca, departing in a cog 19 Jun 1396: the router predicts 29 days, the source records 37. bsky.app/profile/did:...
... 📱It works better on mobile devices now too, using Mercator projection instead of globe, and with an initially-minimised Options panel. The routes and all parameters used can be exported for use in other GIS applications. [2/3]