Research Project
Researchers: Williams, Stefan (Principal investigator) , Williams, Stefan (Principal investigator) , AODN Data Manager (Point of contact, Distributes) , Data Officer (Point of contact, Distributes) , Data Officer (Point of contact, Distributes)
Brief description The IMOS AUV Facility has an Autonomous Underwater Vehicle called Iver (IMOS platform code:IVER), capable of undertaking high resolution geo-referenced survey work. This platform is a modified Ocean Server Iver2 AUV that is hand deployable off RHIBs and other small vessels in addition to being deployable off larger vessels. This AUV has been modified for benthic imaging, including the addition of USBL and DVL for more accurate navigation and the addition of high resolution stereo cameras and strobes. The submersible is equipped with a suite of oceanographic sensors including high resolution stereo cameras (6MP each), depth sensor, Doppler Velocity Log (DVL), Compass and Ultra Short Baseline (USBL). The vehicle is controlled by an on-board PC stack which is used to log sensor information and run the vehicle's control algorithms. The vehicle has demonstrated its capacity to collect high resolution, near bottom imagery on trajectories over smooth terrain that has been used to generate 3D meshes and ortho-mosaics.
Lineage Maintenance and Update Frequency: asNeeded
Lineage Statement: Current Vehicle Specifications (2020) - Depth Rating: 100m; Size: 2.4m(L) x 0.m8(H) x 0.18m(W); Mass 47kg ; Maximum Speed: 2m/s; Batteries: 880 Wh Li-ion pack; Propulsion 180W Ocean Server Iver tail Navigation - Attitude/Heading: Tilt (+/-0.5o), Compass (+/-2o); Depth: Keller pressure sensor (0.01%); Velocity: 2x RDI Explorer PA ADCP (1-2mm/s); USBL: Evologics S2C (0.01m range, 0.1o); GPS: uBlox M9N. Optical Sensing - Camera: AVT Manta G-504 12bit 2452x2056 CCD; Lighting: 2x 900 W LED Strobes; Separation ~1.0m between camera and light. Obstacle avoidance: Impact Subsea ISA500 Communications - Radio Frequency: Freewave 900 MHz radio; Acoustic Modem: Evologics S2C 18/34
Notes
Credit
Australia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent.
Notes
Purpose
To undertake high resolution surveys of benthic habitats in support of IMOS goals
text: westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00
global : af5d0ff9-bb9c-4b7c-a63c-854a630b6984
- global : 0f65b7ae-1f6f-4a55-b804-1c991f791e1a