Seafloor image annotations from the Sabrina upper slope, East Antarctica
Four camera tow transects were completed on the upper slope during survey IN2017_V01 using the Marine National Facility’s Deep Tow Camera. This system collected oblique facing still images with a Canon – 1DX camera and high definition video with a Canon – C300 system. Four SeaLite Sphere lights prov...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/seafloor-image-annotations-east-antarctica/1385779 https://doi.org/10.26179/5caed60a7b076 https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_AAS_4333_IN2017_V01_seafloor_imagery_annotations http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::1385779 2023-05-15T13:52:00+02:00 Seafloor image annotations from the Sabrina upper slope, East Antarctica POST, ALIX (hasPrincipalInvestigator) POST, ALIX (processor) O'BRIEN, PHILIP EDWARD (hasPrincipalInvestigator) ARMAND, LEANNE KAY (hasPrincipalInvestigator) CARROLL, ANDREW (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-63; southlimit=-66; westlimit=113; eastLimit=122; projection=WGS84 Temporal: From 2017-01-14 to 2017-03-05 https://researchdata.ands.org.au/seafloor-image-annotations-east-antarctica/1385779 https://doi.org/10.26179/5caed60a7b076 https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_AAS_4333_IN2017_V01_seafloor_imagery_annotations http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/seafloor-image-annotations-east-antarctica/1385779 0da207ac-8faf-446f-a75c-cd139192e6d3 doi:10.26179/5caed60a7b076 AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_AAS_4333_IN2017_V01_seafloor_imagery_annotations http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC CAMERAS SHIPS GEOGRAPHIC REGION > POLAR CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN dataset ftands https://doi.org/10.26179/5caed60a7b076 2020-04-06T22:22:25Z Four camera tow transects were completed on the upper slope during survey IN2017_V01 using the Marine National Facility’s Deep Tow Camera. This system collected oblique facing still images with a Canon – 1DX camera and high definition video with a Canon – C300 system. Four SeaLite Sphere lights provided illumination and two parallel laser beams 10 cm apart provided a reference scale for the images. This dataset presents results from the analysis of the still imagery. All camera tows were run at a ship speed over the ground of approximately 2 knots. Several sensors were attached to the towed body, including a SBE 37 CTD for collection of salinity, temperature and pressure data, a Kongsberg Mesotech altimeter and a Sonardynne beacon to record the location of the towed body. Transects were run downslope from the continental shelf break, with images analysed over a depth range of ~495 m to 670-725 m. Biota and substrates were characterised for every fifth image according to the CATAMI image classification scheme (Collaborative and Automated Tools for Analysis of Marine Imagery, Althaus et al., 2015). Images were loaded into the online platform SQUIDLE+ for analysis. Biota were counted as presence/absence of all visible biota for each image. Percent biological cover and substrate type for the whole image was calculated based on analysis of 30 random points across each image. Percent cover calculations were standardised according to the proportion of scored points on each image, excluding those that were too dark to classify. A total of 203 images were analysed. Images are available from: http://dap.nci.org.au/thredds/remoteCatalogService?catalog=http://dapds00.nci.org.au/thredds/catalog/fk1/IN2017_V01_Sabrina_Seafloor/catalog.xml Dataset Antarc* Antarctica East Antarctica Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean East Antarctica Kongsberg ENVELOPE(19.082,19.082,69.123,69.123) ENVELOPE(113,122,-63,-66) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC CAMERAS SHIPS GEOGRAPHIC REGION > POLAR CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN |
spellingShingle |
oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC CAMERAS SHIPS GEOGRAPHIC REGION > POLAR CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN Seafloor image annotations from the Sabrina upper slope, East Antarctica |
topic_facet |
oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC CAMERAS SHIPS GEOGRAPHIC REGION > POLAR CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN |
description |
Four camera tow transects were completed on the upper slope during survey IN2017_V01 using the Marine National Facility’s Deep Tow Camera. This system collected oblique facing still images with a Canon – 1DX camera and high definition video with a Canon – C300 system. Four SeaLite Sphere lights provided illumination and two parallel laser beams 10 cm apart provided a reference scale for the images. This dataset presents results from the analysis of the still imagery. All camera tows were run at a ship speed over the ground of approximately 2 knots. Several sensors were attached to the towed body, including a SBE 37 CTD for collection of salinity, temperature and pressure data, a Kongsberg Mesotech altimeter and a Sonardynne beacon to record the location of the towed body. Transects were run downslope from the continental shelf break, with images analysed over a depth range of ~495 m to 670-725 m. Biota and substrates were characterised for every fifth image according to the CATAMI image classification scheme (Collaborative and Automated Tools for Analysis of Marine Imagery, Althaus et al., 2015). Images were loaded into the online platform SQUIDLE+ for analysis. Biota were counted as presence/absence of all visible biota for each image. Percent biological cover and substrate type for the whole image was calculated based on analysis of 30 random points across each image. Percent cover calculations were standardised according to the proportion of scored points on each image, excluding those that were too dark to classify. A total of 203 images were analysed. Images are available from: http://dap.nci.org.au/thredds/remoteCatalogService?catalog=http://dapds00.nci.org.au/thredds/catalog/fk1/IN2017_V01_Sabrina_Seafloor/catalog.xml |
author2 |
POST, ALIX (hasPrincipalInvestigator) POST, ALIX (processor) O'BRIEN, PHILIP EDWARD (hasPrincipalInvestigator) ARMAND, LEANNE KAY (hasPrincipalInvestigator) CARROLL, ANDREW (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Seafloor image annotations from the Sabrina upper slope, East Antarctica |
title_short |
Seafloor image annotations from the Sabrina upper slope, East Antarctica |
title_full |
Seafloor image annotations from the Sabrina upper slope, East Antarctica |
title_fullStr |
Seafloor image annotations from the Sabrina upper slope, East Antarctica |
title_full_unstemmed |
Seafloor image annotations from the Sabrina upper slope, East Antarctica |
title_sort |
seafloor image annotations from the sabrina upper slope, east antarctica |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/seafloor-image-annotations-east-antarctica/1385779 https://doi.org/10.26179/5caed60a7b076 https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_AAS_4333_IN2017_V01_seafloor_imagery_annotations http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-63; southlimit=-66; westlimit=113; eastLimit=122; projection=WGS84 Temporal: From 2017-01-14 to 2017-03-05 |
long_lat |
ENVELOPE(19.082,19.082,69.123,69.123) ENVELOPE(113,122,-63,-66) |
geographic |
Southern Ocean East Antarctica Kongsberg |
geographic_facet |
Southern Ocean East Antarctica Kongsberg |
genre |
Antarc* Antarctica East Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica East Antarctica Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/seafloor-image-annotations-east-antarctica/1385779 0da207ac-8faf-446f-a75c-cd139192e6d3 doi:10.26179/5caed60a7b076 AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seafloor_imagery_annotations https://data.aad.gov.au/metadata/records/AAS_4333_AAS_4333_IN2017_V01_seafloor_imagery_annotations http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.26179/5caed60a7b076 |
_version_ |
1766256151534501888 |