The misalignment angle in vessel-mounted ADCP

• Autorzy: Osinski R.
• Języki publikacji: EN

Abstrakty

EN

A description of the misalignment angle and the consequences if it occurs is given. It is shown that because of gyrocompass errors, the misalignment angle error α has to be computed for each cruise. A simple method of calibrating the acoustic Doppler current profiler (ADCP) mounted on a vessel has been devised by fitting the cosinusoidal function. This is a post-processing method, suitable for calibrating previously collected data. Nevertheless, because of ADCP’s constructional peculiarities, the procedure must be repeated for each cruise.

Słowa kluczowe

EN

cosinusoidal function; zooplankton; ship; acoustic Doppler current profiler; echo; acoustic pulse; depth; calibration; sediment

• Wydawca: -
• Czasopismo: Oceanologia
• Rocznik: 2000
• Tom: 42
• Numer: 3
• Opis fizyczny: p.385-394,fig.,ref.

Twórcy

autor

Osinski R.

• Polish Academy of Sciences, Powstancow Warszawy 55, 81-712 Sopot, Poland

Bibliografia

• Pollard R., Read J., 1989, A method for ship-mounted acoustic Doppler profilers and the limitations of gyrocompasses, J. Atm. Oceanic Technol., 6, 859–865.
• Joyce T.M., 1989, On the in ‘situ’ calibration’ of shipboard ADCP, J. Atm. Oceanic Technol., 6, 169–172.
• King B.A., Cooper E.B., 1993, Comparison of ship’s heading determined from an array of GPS antennas with heading from conventional gyrocompass measurements, Deep-Sea Res., 40, 2207–2216.
• Griffiths G., 1994, Using 3DF GPS heading for improving underway ADCP data, J. Atm. Oceanic Technol., 11, 1335–1143.