@article {RN12,
	title = {An Inductive Charging and Real-Time Communications System for Profiling Moorings},
	journal = {Journal of Atmospheric and Oceanic Technology},
	volume = {32},
	number = {12},
	year = {2015},
	pages = {2243-2252},
	type = {Journal Article},
	abstract = {This paper describes a system for providing power and communications to moored profiling vehicles. A McLane Moored Profiler (MP) was equipped with a rechargeable battery pack and an inductive charging system to allow it to move periodically to a charging dock at the top of a subsurface mooring. Power was provided from a large bank of alkaline batteries housed in two 0.94-m steel spheres. Data were transferred inductively from the profiler to a mooring controller, and from there back to shore via radio and Iridium satellite modems housed in a small surface communications float on an {\textquotedblleft}L{\textquotedblright} tether. An acoustic modem provided backup communications to a nearby ship in the event of loss or damage to the surface float. The system was tested in a 180-m-deep fjord (Puget Sound, Washington) and at Station ALOHA (A Long-Term Oligotrophic Habitat Assessment), a 4748-m-deep open-ocean location north of Hawaii. Basic functionality of the system was demonstrated, with the profiler repeatedly recharging at about 225 W (with an overall efficiency of about 70\%). Data were relayed back to shore via Iridium and to a nearby ship via the radio and acoustic modems. The system profiled flawlessly for the entire 6-week test in Puget Sound, but charging at the deep site stopped after only 9 days in the deep-ocean deployment owing to damage to the charging station, possibly by surface wave action.},
	keywords = {Observational techniques and algorithms, Profilers; oceanic},
	issn = {0739-0572},
	doi = {10.1175/Jtech-D-15-0103.1},
	author = {Alford, M. H. and McGinnis, T. and Howe, B. M.}
}
