A Dutch group has gone through the logs of dozens of 18th and 19th century ships. From this data set can determined historical climate conditions,
temperature and
wind speeds and direction. The image above is the
"Positions of the available observations in the CLIWOC database for the period 1750-1854. The markers in the image show the corrected (mainly for the correct zero-meridian) positions."
CLIWOC also has individual plots of dozens of ships like the
Ajax, Captain Cook's
Endeavour and
Enterprise. Looking at the above you see the shipping lanes.
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