Two Years Weather Summary

This is the summary of our weather here, collected over two years. Data was logged from a N23DQ 2.1.3 OS: 3.0.9 into MySQL as also seen in Periodic sending. The data gets send to a PHP script on a remote server that then makes graphs, overlays this onto a webcam picture, updates the MySQL database and sends the data also to Weather Underground.  But Weather Underground does not give me overall mean temperatures, and does not log certain values, but samples more often, while I took samples every 5 minutes in my own data base. Discrepancies in the histogram and the WU data are explained through this. The peak value of 42 degrees would also have been achieved in full sun exposure. Continue reading Two Years Weather Summary

Most reported AIS CLASS A destinations

These are the most reported destinations from 51444 ships (MSSI) (AIS Message 5) as pulled from AISHubs data feed. Interestingly major harbours from the People Republic of China  are under represented.  Possibly because of a language barrier.  Overall, over the whole set, the freely to be entered destination field has very varied entries, from obscure entries to nothing or just question marks. The data was cleaned for the most common mistakes, like added spaces or useless punctuation.
Continue reading Most reported AIS CLASS A destinations

Travel Distances of Clyde Estuary Calmac Ferries

Travel distances of Clyde CalMac Ferries

NameMMSIDistance traveled (km)Daily km traveledYearly km traveledmean daily return crossings
Loch Shira2350532396358.54794.9036934639.8525.10680
Argyle2350525419859.771147.1607653713.686.523083
Bute2350251128482.798126.6089346212.265.612098
Coruisk2350089294393.820 65.5794023936.482.906888
Recorded travel distances Clyde CalMac Ferries from the 29th of September 2017 to the 4th of December 2017. Daily crossings estimates as 22.56 km return Wemyss Bay - Rothesay and 3.78 km Largs - Cumbrae Slip.
https://www.calmac.co.uk/largs-cumbraeslip-cumbrae-ferry-winter-timetable
https://www.calmac.co.uk/wemyss-bay-rothesay-bute-ferry-winter-timetable

By logging to a Mysql table all recorded GPS positions, we see the workload that is put on these RoRo ferries.

Continue reading Travel Distances of Clyde Estuary Calmac Ferries