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)
View all 6 related researchers
Brief description AUV Sirius (IMOS Platform code: SIRIUS) was deployed in tScott Reef in July 2009. Scott Reef, WA (Heyward, Cooper, Radford, Colquhoun ‐ AIMS): The primary objective of work completed in July/August 2009 was to describe biological assemblages associated with deep coral reef systems at Scott Reef in WA. A significant proportion of South Scott Reef and the adjacent lagoon lies in waters between 30 m to 70 m deep that support a range of habitats similar to many of the submerged shoal systems strung along the edge of the continental shelf in the Timor Sea. The South Scott Reef lagoon covers 300 km^2 and is the largest area of this type observed on a single reef system in the NW region. Understanding the nature and dynamics of these deeper water areas will not only better describe the true extent of Australia’s tropical reef resources, but will contribute to a broader understanding of the overall resilience of coral reefs in the NW region. In order to produce an accurate, high resolution habitat map of the deeper reef waters and to establish viable deep water monitoring sites, high resolution acoustic mapping using digital mulitbeam from Geoscience Australia was completed in parallel with collecting georeferenced seabed images using the AUV Sirius and the existing AIMS towed video with high resolution stills systems. AUV deployments consisted of 19 dives over 12 days of operation onboard the R/V Solander using a mix of survey designs and illustrated the vehicle's reliability and versatility as a complementary habitat characterisation tool. On several occasions the vehicle operated beyond tracking range of the supporting vessel for extended periods facilitating the execution of other scientific objectives, particularly swath bathymetric mapping of the Scott Reef lagoon.
Lineage Maintenance and Update Frequency: asNeeded
Lineage Statement: The files in this folder form part of the data 'product' from the IMOS AUV 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".
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
Credit
Australian Centre for Field Robotics (ACFR)
Notes
Credit
National Geographic Society
Notes
Credit
Woods Hole Marine Biological Laboratory
Notes
Purpose
abstract for netcdf
Data time period: 26 07 2009 to 05 08 2009
text: westlimit=121.7871; southlimit=-14.14998; eastlimit=121.906; northlimit=-14.0826
(.PDF dive reports for each dive in the Whyalla campaign)
uri :
http://data.aodn.org.au/?prefix=IMOS/AUV/ScottReef200907/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)
(dataset to download for this campaign)
uri :
http://data.aodn.org.au/?prefix=IMOS/AUV/ScottReef200907/
- global : 783f9b8d-4ce2-417b-aeb1-234799dc4696