Browsing CMRE Publications by Subject "Buoys"
Now showing items 1-6 of 6
-
A compact buoy system for ship-use in the measurement of ocean micro-structures over a monthly period
(NATO. SACLANTCEN, 1966/10)The oceanographic buoy described is for ship use. It allows a single ship to make synoptic studies of a limited body of water using a number of buoys. The purpose was to create an economic, simple, dependable sea unit, ... -
A compact thermometer for the study of microthermal structure from oceanographic buoys
(NATO. SACLANTCEN, 1965/10)A solid-state, thermistor thermometer, of small physical size (13 cm x 14 cm), low cost ($21.00 worth of parts), and long-term stability (of the order of 0.01 C in 60 days) is described. It has been used successfully - in ... -
An acoustic system for releasing submerged oceanographic buoys from their anchors on demand using a 1.4 kc compact source
(NATO. SACLANTCEN, 1963/12)The paper describes an anchor-releasing device for the recovery of moored oceanographic equipment. The releaser is actuated by a remote acoustic signal emitted by a small and powerful 1400 cps sound source rather than by ... -
Analysis of Swallow float data at SACLANTCEN: Software notes for future use and developments
(NATO. SACLANTCEN, 1996/02)A Swallow float is as a neutrally buoyant, freely drifting unit which is deployed in deep water, equipped with one pressure sensor (hydrophone) and three orthogonal particle velocity sensors (geophones) to measure acoustic ... -
Assessment of sea wave spectra using a surfaced glider
(CMRE, 2019/06)The determination of non-directional and directional sea wave spectra is attempted by analysing the dynamical response of a surfaced Slocum glider. The method makes use of the glider heave motion to infer non-directional ... -
Dynamic placement of a constellation of surface buoys for enhanced underwater positioning
(CMRE, 2019/06)This paper addresses the challenge of dynamically adapting the location of the nodes in an acoustic network to optimise the localisation performance of Autonomous Underwater Vehicles (AUVs) operating in the area. A dynamic ...