How sailing can help with the ocean data collection
Finally, Fiona met us near Kingstone – not so badly as in Atlantic Canada, rather just with rain and wind. The passage from Stella Bay to Brockey Bay on Wolf Island was a challenge, mostly due to activities on water near Kingston and low visibility due to rain. 
CTD cast in Brakey Bay (Wolf Island)
It’s time to sail back St.Lowrance River to our place for hauling – Crysler marina, near Morrisburg. The weather forecast is not so good, in the aftermath of the landfall of hurricane Fiona in Nova Scotia, but we have to rush to be in time for hauling. The late September brings some chilling in the morning and the sun now rises much South. 
We are leaving Waupoos on the lovely sunny day, rising all sails on Spallpeen
Course NbyE to Stella Bay on the Amherst Island!
One of the difficulties of taking CTD measurements from a sailboat is the need for stops for profiling. This time we practiced a stop under sail and also perform CTD casts when possible underway at slow speed. In sailing, heaving to is a way of slowing a sailing vessel’s forward progress, as well as fixing the helm and sail positions so that the vessel does not have to be steered. We practiced this technique with obvious success and performed profiling at a slow speed with RBRbrevioCTD.
Here is the Ruskin plot of the “free-fall” RBRbrevioCTD profiling under a speed of 2 knots with the release of 20m of the line:
