Marine controlled-source electromagnetic survey for deep imaging of submarine groundwater systems
Gallery
Porpoise deployment.
The locations of the GPS units used by the CSEM system.
Jake assembles a Porpoise frame.
The 1 km Porpoise array.
The harbor turtle came to check out our operation today.
Bathymetry data from the Kailua-Kona Bay.
Jake & Dallas assembling one of the Porpoise receivers.
Dolphins near the Huki Pono bow.
Eric & Jake begin the deployment of the CSEM array.
The Porpoise array winch.
Preparing for deployment of the Porpoise array.
An admiral chart of the survey region displayed over the captain’s screen, as Breden adds survey tracks to the HyPack navigation software.
Jason, Khaira, and Eric are discussing water column Multi-beam data, whereas Patrick is operating the G-882 magnetometer system.
Brenden & Eric deploying the G-882 Magnetometer.
Bathymetry data from the Kailua-Kona Bay.
Brenden Deploys the G-882 magnetometer, which follows the boat 30 m behind at a depth of about 6 m.
The terrestrial ends of lava tubes, as observed while surveying along the 30m depth contour line, south of Kailua-Kona.
Porpoise array alignment along crossline 1. Our chase boat is positioned at the end of this 1 km array.
Eric is giving a boat tour and explanation about the different data acquisition systems to Steve, Jason, and Emily, the chase boat team from UH Hilo marine operations.
disassembling Porpoises 2, named Pike.
Dallas adding the GPS mast to the CTD frame.
We all waiting for a green flash at sunset time, which came and wa
Dallas nearby the B150 CSEM transmitter.
The 1 km Porpoise array nicely aligned with our survey boat. At the end of the array you can see the chase boat.
Lowering the multi-beam transducer into the water for position adjustment.
Total survey coverage along the Hualalai groundwater system.
Multi-beam transducer in the water.
CSEM system recovery.
The view of the Hualalai volcano from the Huki Pono survey boat.
The Huki Pono marine survey boat. ‘Huki Pono’ means ‘pull correctly’.
Sunset at transit to back to Harbor.
Data loggers of the Porpoise CSEM receivers used in this survey and their associated fish.
Bathymetry data from the Kiholo Bay area.
Sometimes the view while surveying isn’t that bad. Note the proximity to the coastline as we tow the array along the 30m depth counter line.
Jason checking out the CSEM transmitter
Logging of multi-beam backscatter water column data.
A family of Dolphins accompanied us during our transit to Kiholo Bay.