Data

Montara offshore banks substrata mapping

University of Tasmania, Australia
Heyward, Andrew
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/324cbb7f-740a-452d-a372-639bfa0ca9ff&rft.title=Montara offshore banks substrata mapping&rft.identifier=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/324cbb7f-740a-452d-a372-639bfa0ca9ff&rft.description=In 2009, reefs and shoals near the Montara oil field were exposed to an uncontrolled release of oil and gas that lasted for 74 days. In response, PTTEP commissioned extensive studies into the marine life and ecosystems of the Timor Sea. This record describes the high resolution multibeam data collected by the Australian Institute of Marine Science during PTTEP-funded field surveys to predict the types and distribution of substrate that make up each shoal. The shoal maps are supplied in vector Shapefile format, resampled to 4m, and at native resolution (~2m) in Geotiff format, with the following substratum classes: 1 = Limestone (high relief), 2 = Limestone (low relief), 3 = Rubble, 4 = Mixed substrate, 5 = Sand and rubble, 6 = SandStatement: Nine banks and shoals were surveyed in 2011 with high resolution multibeam swath bathymetry, ranging in distance from within three kilometres to around 150 km from the Montara well. With the exception of Vulcan and Barracouta shoals, all were poorly described, with limited bathymetric data. Multibeam swath mapping was undertaken using a Reson Seabat 7101 and post-processed to 2m pixel size. At each bank and shoal, video transects and sediment samples were conducted to assess biotic communities and substratum, and investigate exposure to hydrocarbons. A total of 16,000 still images from towed video were used for substratum and habitat analysis. Extensive biological and ecological surveying was carried as part of this survey, see https://www.dcceew.gov.au/sites/default/files/env/pages/bcefac9b-ebc5-4013-9c88-a356280c202c/files/2011-offshore-banks-assessment-survey.pdf&rft.creator=Heyward, Andrew &rft.date=2020&rft.coverage=westlimit=123.47; southlimit=-13.97; eastlimit=124.64; northlimit=-12.48&rft.coverage=westlimit=123.47; southlimit=-13.97; eastlimit=124.64; northlimit=-12.48&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=http://i.creativecommons.org/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=Cite data as: Heyward A, Jones R, Meeuwig J, Burns K, Radford B, Colquhoun R, Cappo M, Case M, O'Leary R, Fisher R, Meekan M, Stowar M (2011). Montara offshore banks substrata mapping. Australian Institute of Marine Science for for PTTEP Australasia (Ashmore Cartier) Pty. Ltd. Data accessed from [access URL] on [access date]&rft_rights=This data is hosted by the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, on behalf of PTTEP Australasia for the purposes of the Seamap Australia collaborative project.&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=environment&rft_subject=oceans&rft_subject=MARINE HABITAT&rft_subject=EARTH SCIENCE&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=Montara banks&rft_subject=Environmental Sciences not elsewhere classified&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=OTHER ENVIRONMENTAL SCIENCES&rft_subject=Environmental Management&rft_subject=ENVIRONMENTAL SCIENCE AND MANAGEMENT&rft_subject=Marine and Estuarine Ecology (incl. Marine Ichthyology)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=ECOLOGY&rft_subject=Benthic habitat&rft_subject=oil spill&rft_subject=environmental impact assessment&rft.type=dataset&rft.language=English Access the data
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Cite data as: Heyward A, Jones R, Meeuwig J, Burns K, Radford B, Colquhoun R, Cappo M, Case M, O'Leary R, Fisher R, Meekan M, Stowar M (2011). Montara offshore banks substrata mapping. Australian Institute of Marine Science for for PTTEP Australasia (Ashmore Cartier) Pty. Ltd. Data accessed from [access URL] on [access date]

This data is hosted by the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, on behalf of PTTEP Australasia for the purposes of the Seamap Australia collaborative project.

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Brief description

In 2009, reefs and shoals near the Montara oil field were exposed to an uncontrolled release of oil and gas that lasted for 74 days. In response, PTTEP commissioned extensive studies into the marine life and ecosystems of the Timor Sea. This record describes the high resolution multibeam data collected by the Australian Institute of Marine Science during PTTEP-funded field surveys to predict the types and distribution of substrate that make up each shoal. The shoal maps are supplied in vector Shapefile format, resampled to 4m, and at native resolution (~2m) in Geotiff format, with the following substratum classes: 1 = Limestone (high relief), 2 = Limestone (low relief), 3 = Rubble, 4 = Mixed substrate, 5 = Sand and rubble, 6 = Sand

Lineage

Statement: Nine banks and shoals were surveyed in 2011 with high resolution multibeam swath bathymetry, ranging in distance from within three kilometres to around 150 km from the Montara well. With the exception of Vulcan and Barracouta shoals, all were poorly described, with limited bathymetric data. Multibeam swath mapping was undertaken using a Reson Seabat 7101 and post-processed to 2m pixel size. At each bank and shoal, video transects and sediment samples were conducted to assess biotic communities and substratum, and investigate exposure to hydrocarbons. A total of 16,000 still images from towed video were used for substratum and habitat analysis. Extensive biological and ecological surveying was carried as part of this survey, see https://www.dcceew.gov.au/sites/default/files/env/pages/bcefac9b-ebc5-4013-9c88-a356280c202c/files/2011-offshore-banks-assessment-survey.pdf

Data time period: 2010-01-01 to 2010-12-31

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124.64,-12.48 124.64,-13.97 123.47,-13.97 123.47,-12.48 124.64,-12.48

124.055,-13.225

text: westlimit=123.47; southlimit=-13.97; eastlimit=124.64; northlimit=-12.48

Subjects
AQUATIC ECOSYSTEMS | Biological Sciences | BIOSPHERE | Benthic habitat | EARTH SCIENCE | Ecology | Environmental Science and Management | Environmental Sciences | Environmental Management | Environmental Sciences Not Elsewhere Classified | MARINE HABITAT | Marine and Estuarine Ecology (Incl. Marine Ichthyology) | Montara banks | Other Environmental Sciences | environment | environmental impact assessment | oceans | oil spill |

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Other Information
(DATA ACCESS - Download the data in native resolution (2m) in Geotiff format)

uri : https://data.imas.utas.edu.au/attachments/324cbb7f-740a-452d-a372-639bfa0ca9ff/Montara_offshore_banks.tif

(View survey report)

uri : https://www.dcceew.gov.au/sites/default/files/env/pages/bcefac9b-ebc5-4013-9c88-a356280c202c/files/2011-offshore-banks-assessment-survey.pdf

global : 4739e4b0-4dba-4ec5-b658-02c09f27ab9a

Identifiers
  • global : 324cbb7f-740a-452d-a372-639bfa0ca9ff
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