Evaluating Performance of Acoustic Current Profiler Sensor on Small, Dynamic Surface Buoy
Autor: | Robert Heitsenrether, David W. Velasco, Laura Fiorentino, W. Douglas Wilson |
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Rok vydání: | 2018 |
Předmět: |
System development
Motion compensation 010504 meteorology & atmospheric sciences Buoy 010505 oceanography Attitude and heading reference system Storm 01 natural sciences Current (stream) symbols.namesake Acoustic Doppler current profiler symbols Environmental science Doppler effect 0105 earth and related environmental sciences Marine engineering |
Zdroj: | OCEANS 2018 MTS/IEEE Charleston. |
DOI: | 10.1109/oceans.2018.8604697 |
Popis: | A sea surface following buoy equipped with a wave sensor and acoustic Doppler current profiler (ADCP) may be a useful system design option for many different coastal ocean measurement applications. However, previous work has shown that surface buoy-mounted ADCP current profile data can be negatively impacted by buoy motion in dynamic coastal environments. Between 2014 and 2018, a series of three field experiments were conducted at a site in the south Chesapeake Bay to evaluate the performance of acoustic Doppler current profilers installed on small, dynamic surface buoy platforms (< 2 m). The focus of this paper is on results from the third, most recent field experiment conducted during December 2017 – January 2018. This third experiment evaluates potential improvements offered by a new Acoustic Doppler Current Profiler (ADCP) with an integrated Attitude and Heading Reference Sensor (AHRS) and a real-time motion compensation capability. The improved ADCP with ARHS was installed on a small surface buoy in a downward looking configuration. The test buoy system was deployed at the Chesapeake Bay field site alongside a second, nearby ADCP system in a bottom mount serving as a stable reference. Results comparing current profile measurements from buoy and bottom mount sensors indicate significant improvement in the buoy mounted ADCPs performance as compared to the previous two field tests. A summary of the new ADCP instrument employed, measurement methods, field observations, and initial performance evaluation will be presented, along with plans for continuing system development and testing. |
Databáze: | OpenAIRE |
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