Krill Camera Footage and Traps from the SIPEX II Voyage of the Aurora AustralisEntry ID: SIPEX_II_Krill_Camera
Abstract: The intention of the Deep Krill Camera and Trap System was to monitor and capture krill found during deep CTD operations.
Two traps were installed on the CTD in place of Niskin Bottles. At pre-determined depths an internal light was illuminated and the traps were opened. After a set period of time a second trigger signal was sent to the traps, closing the entry point, encapsulating any Krill ... that were inside.
The Krill Camera system was installed onto the CTD rosette. It consisted of a high-definition video camera (a GoPro Hero 2) within a pressure housing, flanked by two LED light sources. The power for this system was supplied via a rechargeable battery pack also mounted to the CTD.
The camera system was remotely controlled from the surface via the CTD communications link. At specific depths the lights and camera were activated, recording the water column and ocean floor by adjusting focus length for fixed durations in an attempt to document Krill at lower depths.
An additional camera was introduced into the system, mounted to allow video capture of the Krill Trap Operation. This camera was set to record at the beginning of the operations and left running for the duration of the deployment.
Video data from the Krill camera is in MTS format, which can be opened with VLC Media Player.
Trap footage is recorded in MP4 format, which can be opened with Quicktime or VLC Media Player.
Trap triggering and camera operation data was recorded manually by Rob King.
Data Set Citation
Dataset Originator/Creator: Meiners, K., King, R., Reeve, J., Jordan, M. and Williams, J.
Dataset Title: Krill Camera Footage and Traps from the SIPEX II Voyage of the Aurora Australis
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2017-09-07
Dataset Publisher: Australian Antarctic Data Centre
Dataset DOI: doi:10.4225/15/59b09f793366cOnline Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
This description is a member of a collection. The collection is described in
Start Date: 2012-09-29Stop Date: 2012-10-14
Quality The Deep Krill camera system had no absolute feedback, so it could never be certainly known if the recording was occurring properly until the data were reviewed at the surface.
There appeared to be some interference between the CTD bottle firing and camera commands being transmitted to the CTD rosette. This was worked around by monitoring the feedback from the camera system, then transmitting the bottle firing trigger in between updates.
Access Constraints These data are publicly available for download at the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 220 GB
Distribution Format: mp4, MTS
Phone: + 61 3 6226 7201
Email: klaus.meiners at acecrc.org.au
Sea-ice Ecologist Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC) Private Bag 80
Province or State: Tasmania
Postal Code: 7001
Phone: +61 3 6232 3527
Email: Rob.King at aad.gov.au
Australian Antarctic Division Channel Highway
Province or State: Tasmania
Postal Code: 7050
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-01-14
Last DIF Revision Date: 2017-09-11