Results from three deployments of an RD instruments RD SC0150 acoustic Doppler current profiler (ADCP) are presented. Simultaneous measurements with a ship-mounted (Ametek Straza) ADCP and moored Aanderaa current meters during a deployment on Georges Bank show that the three systems resolved the main features of the dominant tidal flow, but with some rate discrepancies. Examination of the discrepancies indicates that the RDI data were degraded by transmit skew errors, Doppler tracking problems in the presence of high shear and low backscatter, and other minor instrument problems. The resulting inaccuracies were exacerbated by the use of short pulse lengths. Large vertical and error velocities in the Georges Bank data set accounted for some, but not all, of the degradations. Spatial structures in the near-future flow field and degradation of the (paddle-wheel) Aanderaa rate measurement also contributed to the discrepancies.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Velocity errors associated with using short pulse lengths in a 150-kHz acoustic Doppler current profiler


    Additional title:

    Geschwindigkeitsfehler bei Messungen mit kurzen Impulslängen in einem 150-kHz-Dopplerströmungsmeßgerät


    Contributors:


    Publication date :

    1990


    Size :

    13 Seiten, 14 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Connecting device of acoustic Doppler flow velocity profiler

    LI RUNKUN / FU CHAOHUI / LIU HAO et al. | European Patent Office | 2024

    Free access

    Observation bracket for acoustic Doppler current profiler

    ZHANG XIAOFEI / ZHANG GANG / DU ZHENCHANG et al. | European Patent Office | 2015

    Free access

    Performance of a broadband acoustic Doppler current profiler

    Brumley, B.H. / Cabrera, R.G. / Deines, K.L. et al. | Tema Archive | 1990


    Development of a shipboard acoustic Doppler current profiler

    Kuroda, Y. / Kai, G. / Okuno, K. | Tema Archive | 1988