Browsing by Author "Frassetto, Roberto"
Now showing items 1-7 of 7
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A compact buoy system for ship-use in the measurement of ocean micro-structures over a monthly period
Frassetto, Roberto (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
Pesaresi, Riccardo; Frassetto, Roberto (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 ... -
A study of the turbulent flow and character of the water masses over the Sicilian ridge in both summer and winter
Frassetto, Roberto (NATO. SACLANTCEN, 1972/09)The western sill region of the Strait of Sicily lies between Sicily (Capo Lilibeo) and Tunisia (Cap Bon) and is part of the submarine ridge separating the eastern from the western Mediterranean. [Fig. lJ. It was studied ... -
An acoustic system for releasing submerged oceanographic buoys from their anchors on demand using a 1.4 kc compact source
Frassetto, Roberto; Pesaresi, Riccardo (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 ... -
An analogue recording system for recording pulse series
Pesaresi, Riccardo; Frassetto, Roberto (NATO. SACLANTCEN, 1964/04)An analogue recording system for the visual display of pulse series intermittently received from oceanographic sensors is described. It is composed of a mechanically-modified pen recorder and a newly designed electronic ... -
New mechanical equipment for handling oceanographic cables
Frassetto, Roberto; Manzotti, Vittorio; Chiarabini, Anselmo (NATO. SACLANTCEN, 1964/04)The four pieces of equipment described in this report have been designed to facilitate the handling of oceanographic cables by replacing the heavy, and often expensive, equipment at present in use, with lighter, less ... -
Short-period vertical displacements of the upper layers in the Strait of Gibraltar: part 1 - text: part 2 - diagrams
Frassetto, Roberto (NATO. SACLANTCEN, 1964/11)The report is principally based on observations of short-term displacements made by the author in the summers of 1958, 1959, and 1961, using a thermistor chain. Pilot tubes installed on the thermistor chain made simultaneous ...