GAIA Marine delivered a complex deep-water physical oceanography monitoring program in a remote Indonesian offshore setting, successfully deploying, servicing and recovering subsurface moorings to collect current, temperature, water-level and wave data for project planning and environmental assessment.
The program required oceanographic measurements across two offshore monitoring stations, including a shallow-water station and a deep-water station. The scope included current speed and direction, water temperature and relative water-level variability at both stations, with non-directional wave measurements also collected at the shallow station.
GAIA Marine developed a subsurface mooring approach using upward-looking Acoustic Doppler Current Profilers, pressure sensors, temperature sensors and wave instrumentation. The proposed method was selected to provide water-column current profiling, while also addressing the practical constraints of deployment depth, mooring complexity, remote logistics, vessel capability, equipment management and HSEQ execution.
The field program was delivered over two successive deployment phases, separated by planned recovery, servicing, data download and redeployment. This staged model was important for a remote monitoring program: it allowed equipment condition to be checked, data to be recovered during the campaign and the systems to be redeployed with confidence for the second phase.
The final reporting package brought together multiple data streams into a controlled technical dataset, including current profiles, temperature structure, pressure-derived water-level variability and accepted wave observations. QA/QC was applied separately for each measurement type, with results presented through summary statistics, time series, current roses, temperature curtains, water-level plots and wave outputs.
This project demonstrates GAIA Marine’s capability to deliver technically complex oceanographic monitoring in remote offshore environments. The value was not simply in deploying instruments offshore; it was in planning the system properly, managing the logistics, executing the work safely, recovering the data, resolving instrument-specific processing issues and delivering a clear technical record for client review.