Tristan Hotham

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Early modern and modern

How Close Did Ino Get?

Ino Tadataka's 1821 survey of Japan's far north laid on today's coast: the drawn coastline sits a median 280 m from the modern line.

How Close Did Ino Get?: preview of the interactive map

This is an interactive data study by Dr Tristan Hotham, built from open data. The map runs in your browser: explore it, search for places and switch layers. The write-up explains the method and what the data shows, and the data and code are open for anyone to reuse.

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