Wednesday, 28 August 2024

CLIWOC tall ships sailings from captains logs

Update: global harmonization of climate data since 1850 follows next.

"CLImatological database of World OCeans" was my first outing using Esri tools as personal project. I found this fabulous dataset with ¼ M points! Detailed here, it came from a 5 yr. EU project to scan captains ships logs for climate data in the 17-19th c. before weather data were recorded. Tall ships were mainly British, Dutch & French, Portuguese notably absent due to Lisbon archive destruction in the 1755 "Great Earthquake" (Wikipedia). 

stats from ArcGIS, total: 223,969, click to enlarge

I worked it at home and its first video animation is here improved here (ships), here (wind) and here (ocean-centric). 
This private project at home was before breakfast because there was internet but neither cable nor wifi... we used dial-up modems (sound here), and afternoons the lines were tied up by students @ home, but evenings were adults watching porn videos (... Redlands Daily Facts story picked up by the LA Times)... so as I used to quip, "I had a secret life on the internet before breakfast"... 20 yrs ago was pre-Google if anyone remembers Netscape browser, AOL email and Altavista web search (had a cracking desktop search engine to find your files, not even Google has matched).
I also wrote up the data intricacies here (points), here (attributes) and here (datasets), and my poster below was exhibited at Esri Oceans Forum, Redlands CA, Nov 5-7 2014. And in layman's terms as an open data workshop to help promote citizen science here.

source, click to enlarge

As mentioned in my previous post here, I have the software again and I revived this "grand ole 'projy' " (rhymes w Grand Ole Opry here) as a video in a projection not unlike National Geographic's (so-called Equal Earth matching the middle two videos above). As ¼M points get crowded and I just returned to France, I posted the French sailings as I was curious of their extents. 


I was disappointed to find so few ship names! I looked for the Belem whose repro brought the 2024 Olympic flame to Marseille, or the Hermione repro that sailed to NYC in 2015 (website), or Le Croyable captured by USS Delaware on my 'blue plate' "Friendship of Salem".


Top-of-the-list La Boussole is famous for de la Pérouse who criss-crossed the Pacific, even claimed Australia for King Louis XVI whose last words at the guillotine were "any word from la Pérouse"? He was shipwrecked with Astrolabe offshore what is now Botany Bay they had just left - named by Capt. Cook who did return home and claim the subcontinent for Mad King George III who lost the American colonies... - you have to have lived in Australia (I grew up in Brisbane) to learn that's how good that bay was that two explorers visited it!
You'll only read in Hans-Otto Meissner's 1984 "Die verschollenen Schiffe des Lapérouse" ("The lost ships of Laperouse", Google Books) that expeditions took scientists (detailed in French Wikipedia) and a young Napoleon, a surveyor, was replaced by an old friend of La Pérouse... imagine what early 19th c. would've looked like had Bonaparte drowned young!
stats from ArcGIS, total: 8,229, click to enlarge

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