Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica
Maintenance and Update Frequency: asNeeded Statement: Not supplied Six camera tow transects were completed during survey IN2017-V01 on the RV Investigator in January to March 2017. This survey focussed on the upper slope and outer continental shelf on the Sabrina Coast seafloor in East Antarctica. C...
Other Authors: | , , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Australian Ocean Data Network
|
Subjects: | |
Online Access: | https://researchdata.edu.au/seabed-imagery-in2017v01-east-antarctica/1881858 https://pid.geoscience.gov.au/dataset/ga/116582 https://doi.org/10.4225/25/5ab2dc0b1000b |
id |
ftands:oai:ands.org.au::1881858 |
---|---|
record_format |
openpolar |
spelling |
ftands:oai:ands.org.au::1881858 2024-09-15T17:44:24+00:00 Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica Armand, L. (hasPrincipalInvestigator) Commonwealth of Australia (Geoscience Australia) (hasAssociationWith) EGD (resourceProvider) Geoscience Australia (distributor) Manager Client Services (resourceProvider) Manager Client Services (custodian) Manager Client Services (pointOfContact) O'Brien, P.E. (hasPrincipalInvestigator) Post, A.L. (custodian) Post, A.L. (author) Post, A.L. (pointOfContact) Spatial: westlimit=113; southlimit=-66; eastlimit=122; northlimit=-63 Temporal: From 2018-01 to 2018-03 https://researchdata.edu.au/seabed-imagery-in2017v01-east-antarctica/1881858 https://pid.geoscience.gov.au/dataset/ga/116582 https://doi.org/10.4225/25/5ab2dc0b1000b unknown Australian Ocean Data Network https://researchdata.edu.au/seabed-imagery-in2017v01-east-antarctica/1881858 7d5aa8ef-864b-4b62-b501-2c2767aa02a5 https://pid.geoscience.gov.au/dataset/ga/116582 doi:10.4225/25/5ab2dc0b1000b Commonwealth of Australia (Geoscience Australia) EGD geoscientificInformation Landscape Ecology ENVIRONMENTAL SCIENCES ECOLOGICAL APPLICATIONS East Antarctica seafloor marine ecology EARTH SCIENCES Published_External dataset ftands https://doi.org/10.4225/25/5ab2dc0b1000b 2024-08-06T01:58:58Z Maintenance and Update Frequency: asNeeded Statement: Not supplied Six camera tow transects were completed during survey IN2017-V01 on the RV Investigator in January to March 2017. This survey focussed on the upper slope and outer continental shelf on the Sabrina Coast seafloor in East Antarctica. Camera tows targeted seafloor depths between 480 and 1680 m. Imagery was collected using the Marine National Facilities Deep Tow Camera. This system collects oblique downward facing still images with a Canon 1DX and high definition video with a Canon C300. Four DSP&L 3150 High Output SeaLite Sphere lights were used, with MicroSeaLasers providing a 10cm scale guide on the images. Several sensors are also attached to the towed body, including a SBE 37 for CTD measurements, a Kongsberg Mesotech – 1007D altimeter, a Druck PMP 5074 pressure sensor and two Sonardyne USBLs for locational accuracy of the towed body. The USBL failed for tow A008CAM02, with locations recorded as ship’s position instead and camera position based on layback calculations. Images failed to record on A004CAM01, with only 2 images saved. Due to a timing error between the images and the other sensors, there is an offset between the CTD, altimeter and pressure data and the images. This is currently being resolved by the MNF. Tows were designed to run down slope to reduce potential for colliding with the bottom. All tows were run with a ship speed over the ground of approximately 2 kt. All still images were saved in jpeg format with video footage recorded to HD1080i50 format. The video data is unclipped and includes descent and ascent in the water column. Following collection still images were colour corrected in Adobe Photoshop to remove the blue bias. Images are available on the NCI with the following file structure: MARINE IMAGERY COLLECTION └─ PLATFORM_NAME └─ CAMPAIGN_NAME └─ DEPLOYMENT_NAME ├─ images/ └─ metadata.csv Where - PLATFORM_NAME is the name of the platform (e.g. Towed still imagery, Towed video imagery) - CAMPAIGN_NAME is the name ... Dataset Antarc* Antarctica East Antarctica Research Data Australia (Australian National Data Service - ANDS) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
geoscientificInformation Landscape Ecology ENVIRONMENTAL SCIENCES ECOLOGICAL APPLICATIONS East Antarctica seafloor marine ecology EARTH SCIENCES Published_External |
spellingShingle |
geoscientificInformation Landscape Ecology ENVIRONMENTAL SCIENCES ECOLOGICAL APPLICATIONS East Antarctica seafloor marine ecology EARTH SCIENCES Published_External Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
topic_facet |
geoscientificInformation Landscape Ecology ENVIRONMENTAL SCIENCES ECOLOGICAL APPLICATIONS East Antarctica seafloor marine ecology EARTH SCIENCES Published_External |
description |
Maintenance and Update Frequency: asNeeded Statement: Not supplied Six camera tow transects were completed during survey IN2017-V01 on the RV Investigator in January to March 2017. This survey focussed on the upper slope and outer continental shelf on the Sabrina Coast seafloor in East Antarctica. Camera tows targeted seafloor depths between 480 and 1680 m. Imagery was collected using the Marine National Facilities Deep Tow Camera. This system collects oblique downward facing still images with a Canon 1DX and high definition video with a Canon C300. Four DSP&L 3150 High Output SeaLite Sphere lights were used, with MicroSeaLasers providing a 10cm scale guide on the images. Several sensors are also attached to the towed body, including a SBE 37 for CTD measurements, a Kongsberg Mesotech – 1007D altimeter, a Druck PMP 5074 pressure sensor and two Sonardyne USBLs for locational accuracy of the towed body. The USBL failed for tow A008CAM02, with locations recorded as ship’s position instead and camera position based on layback calculations. Images failed to record on A004CAM01, with only 2 images saved. Due to a timing error between the images and the other sensors, there is an offset between the CTD, altimeter and pressure data and the images. This is currently being resolved by the MNF. Tows were designed to run down slope to reduce potential for colliding with the bottom. All tows were run with a ship speed over the ground of approximately 2 kt. All still images were saved in jpeg format with video footage recorded to HD1080i50 format. The video data is unclipped and includes descent and ascent in the water column. Following collection still images were colour corrected in Adobe Photoshop to remove the blue bias. Images are available on the NCI with the following file structure: MARINE IMAGERY COLLECTION └─ PLATFORM_NAME └─ CAMPAIGN_NAME └─ DEPLOYMENT_NAME ├─ images/ └─ metadata.csv Where - PLATFORM_NAME is the name of the platform (e.g. Towed still imagery, Towed video imagery) - CAMPAIGN_NAME is the name ... |
author2 |
Armand, L. (hasPrincipalInvestigator) Commonwealth of Australia (Geoscience Australia) (hasAssociationWith) EGD (resourceProvider) Geoscience Australia (distributor) Manager Client Services (resourceProvider) Manager Client Services (custodian) Manager Client Services (pointOfContact) O'Brien, P.E. (hasPrincipalInvestigator) Post, A.L. (custodian) Post, A.L. (author) Post, A.L. (pointOfContact) |
format |
Dataset |
title |
Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
title_short |
Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
title_full |
Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
title_fullStr |
Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
title_full_unstemmed |
Seabed imagery from IN2017_V01, Sabrina Seafloor survey, East Antarctica |
title_sort |
seabed imagery from in2017_v01, sabrina seafloor survey, east antarctica |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/seabed-imagery-in2017v01-east-antarctica/1881858 https://pid.geoscience.gov.au/dataset/ga/116582 https://doi.org/10.4225/25/5ab2dc0b1000b |
op_coverage |
Spatial: westlimit=113; southlimit=-66; eastlimit=122; northlimit=-63 Temporal: From 2018-01 to 2018-03 |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_source |
Commonwealth of Australia (Geoscience Australia) EGD |
op_relation |
https://researchdata.edu.au/seabed-imagery-in2017v01-east-antarctica/1881858 7d5aa8ef-864b-4b62-b501-2c2767aa02a5 https://pid.geoscience.gov.au/dataset/ga/116582 doi:10.4225/25/5ab2dc0b1000b |
op_doi |
https://doi.org/10.4225/25/5ab2dc0b1000b |
_version_ |
1810491953875255296 |