Search Help
Seafloor image annotations from the Sabrina upper slope, East Antarctica
Entry ID: AAS_4333_IN2017_V01_seafloor_imagery_annotations


Summary
Abstract: 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 ... View entire text

Purpose: This dataset provides presence/absence data for taxa, % biological cover and substrate attributes determined from seafloor images from the Sabrina upper slope. These data provide an understanding of seabed habitats and diversity of taxa.
Related URL
Description: Download the dataset.
View entire list
Geographic Coverage
Spatial coordinates   
  N: -63.0   S: -66.0   E: 122.0   W: 113.0
Min Depth: 400 METRES Max Depth: 2000 METRES

Data Set Citation
Dataset Originator/Creator: Post, A., O'Brien, P.E., Armand, L.K.
Dataset Title: Seafloor image annotations from the Sabrina upper slope, East Antarctica
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2020-04-01
Dataset Publisher: Australian Antarctic Data Centre
Version: 1
Online Resource: https://data.aad.gov.au/metadata/records/AAS_4333_IN2017_V01_seaflo...
Temporal Coverage
Start Date: 2017-01-14
Stop Date: 2017-03-05
Platform
SHIPS Ancillary Description
Instrument
Cameras Ancillary Description
Quality Images that were too blurry, and those that were too far from or too close to the seafloor for analysis were not analysed. Distance to the seafloor was assessed based on the ratio of the distance between the laser pointers to the width of the computer screen, with the ratio for good images between 0.018:1 and 0.064:1 (D. Osterhage, pers. comm.). Unfortunately, altimeter data could not be used to determine distance from the seafloor due to timing offsets that were not able to be resolved. Quantitative counts were not attempted due to variable image quality and oblique image angles, which would have led to inconsistencies in abundance data.
Access Constraints These data are not yet publicly available.
Use Constraints This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4333... when using these data.
Data Set Progress
COMPLETE
Data Center
Australian Antarctic Data Centre, Australia Supplemental Info
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia
Distribution
Distribution Media: HTTP
Distribution Size: Excel
Distribution Format: 75 kb
Fees: Free
Personnel
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 2 6249 9023
Email: alix.post at ga.gov.au
Contact Address:
Geoscience Australia
Corner of Jerrabomberra Av. and Hindmarsh Drv.
GPO Box 378
City: Symonston
Province or State: Australian Capital Territory
Postal Code: 2609
Country: Australia
View entire list
Publications/References
Armand, L., O'Brien, P., Armbrecht, L., Baker, H., Caburlotto, A., Connell, T., Cotterle, D., Duffy, M., Edwards, S., Evangelinos, D., Fazey, J., Flint, A., Focardi, A., Gifford, S., Holder, L., Hughes, P., Lawler, K.A., Lieser, J., Leventer, A., Lewis, M., Martin, T., Morgan, N., Lopez Quiros, A., Malakoff, K., Noble, T., Opdyke, B., Palmer, R., Perera, R., Pirotta, V., Post, A., Romeo, R., Simmons, J., Thost, D., Tynan, S., Young, A. (2018), Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles (IN2017-V01): Post-survey report., Canberra, ACT: Research School of Earth Sciences, The Australian National University, p. 143. Post, A.L., O'Brien, P.E., Armand, L.K., Edwards, S., Carroll, A. et al., in prep. Upper slope processes and seafloor ecosyste
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2019-04-11
Last DIF Revision Date: 2019-04-11


-->