Researchers: Australian Centre for Field Robotics (ACFR), The University of Sydney (USYD) (Associated with) , Data Officer (Point of contact, Distributes) , Integrated Marine Observing System (IMOS) (Resource provider of, Associated with) , Williams, Stefan (principalInvestigator)
Full description Autonomous Underwater Vehicles (AUV) Sirius (IMOS Platform code: SIRIUS) was deployed in the Great Barrier Reef in February 2011.
In the Great Barrier Reef the program is focused on seagrass beds in the middle of the GBR lagoon to understand how their abundance is affected by upwelling coming through the Magnetic and Palm Passages and on deepwater coral reefs on the outer GBR. Although there is extensive monitoring of shallow water reefs along the extent of the GBR, there has been relatively little opportunity to monitor deeper reefs. Understanding the nature of these deepwater reefs may provide important insights into the resilience of the GBR to stresses such as changing temperatures, ocean acidification, cyclones and nutrient influx from the coast. Surveys of the seagrass beds in the lagoon, which were designed to revisit sites surveyed using towed video ten years ago, and at Myrmidon Reef on the outer GBR were completed during July 2011 to establish benthic reference sites in this area.
Lineage Maintenance and Update Frequency: asNeeded
Lineage Statement: The files in this folder form part of the data 'product' from the IMOS Autonomous Underwater Vehicles Facility Sirius AUV operated by the University of Sydney's Australian Centre for Field Robotics. The directory contains a number of different file types. These are listed below. The 'product' from each dive is contained in it's own named folder. *all_reports folder:- This folder contains the PDF short dive report files, one for each of the dives. These contain some summary graphs and sample images. *per_dive folder:- -> i*_gtif (contains geotif versions of all images). -> i*_subsampN (subsampled geotif images (one in N, and a csv of locations). -> hydro_netcdf (*.nc files, netcdf files containing CT and ecopuck data). -> track_files (dive track in csv, kml and arcgis shape file format). -> mesh (3D reconstuction of the dive, needs OSG viewer software). -> multibeam (a number of different versions of the multibeam product). *.gsf: Navigated and automatically cleaned swath bathymetry with raw intensity data. Format specification 121 (SAIC Generic Sensor Format) in mbsystem. *.grd: Gridded bathymetry. NetCDF format as used with GMT. Use grdinfo to determine resolution and projection. *.grd.pdf: Plotted gridded bathymetry (local northings and eastings) acrobat PDF format. Windows Viewers folder:- This folder contains a copy of gqview a windows image viewer that is able to view the geotiffs. These are standard tiff's but with jpg compression, and the regular windos viewer will not open. Other more capable windows programs including AcDsee (spelling???) also work. Ultimately there should be a copy of the windows viewer for the meshes but this is not yet here. Acknowledgement:- "Data was sourced from the Integrated Marine Observing System (IMOS). An initiative of the Australian Government being conducted as part of the National Collaborative Research Infrastructure Strategy". Distribution Statement:- "AUV data may be reused, provided that related metadata explaining the data has been reviewed by the user, and the data is appropriately acknowledged. Data products and services from IMOS are provided "as is" without any warranty as to fitness for a particular purpose".
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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.
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Australian Centre for Field Robotics (ACFR)
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National Geographic Society
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Woods Hole Marine Biological Laboratory
Data time period: 28 02 2011 to 03 2011
text: westlimit=146.955; southlimit=-18.895; eastlimit=147.025; northlimit=-18.815
(.PDF dive reports for each dive in the Whyalla campaign)
uri :
http://data.aodn.org.au/?prefix=IMOS/AUV/GBR201102/all_reports
A Terrain-aided Tracking Algorithm for Marine Systems, Stefan Williams,2003 (Williams2003-FSR.pdf)
DESIGN OF AN UNMANNED UNDERWATER VEHICLE FOR REEF SURVEYING, Stefan B. Williams - Ian Mahon,2004 (Williams2004-IFAC-ReefSurveying.pdf)
Heterogeneous Imaging Towards Three-Dimensional Sensor Correspondence and Registration for Visualization, Matthew Johnson-Roberson, Oscar Pizarro, Stefan Williams (IEEE_Sirius_paper.pdf)
global : fe81b24e-adee-4c77-a8e1-e8a77cfd3dff
- global : ae70eb18-b1f0-4012-8d62-b03daf99f7f2