SA Agulhas II Winter 2017 Cruise: ice edge drifters

• Other Authors: AADC (originator), AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; ICE FLOES; EARTH SCIENCE; CRYOSPHERE; SEA ICE; SEA ICE MOTION; GPS > Global Positioning System; SHIPS; AMD/AU; CEOS; AMD; OCEAN > SOUTHERN OCEAN; GEOGRAPHIC REGION > POLAR; Antarctic; Southern Ocean; Trident; Antarc*; Sea ice
• Online Access: https://researchdata.ands.org.au/sa-agulhas-ii-edge-drifters/1408978; https://data.aad.gov.au/metadata/records/AAS_4434_AGULHAS_TRACKERS_2017; https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4434_AGULHAS_TRACKERS_2017; https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4434; http://data.aad.gov.au/eds/4882/download; https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=4434

Three Trident Sensors Helix beacons (Unit 1,2,3) were deployed about on ice floes close to latitude 62.8 S and longitude 29.8 E on 4th July 2017 to measure sea ice drift. The region where the instruments were deployed (Antarctic Marginal Ice Zone) consisted of first-year ice on average ~50 cm thick. The instruments were deployed by hand by three people, lowered by crane from the ship to the ice on a basket cradle on floes ~5 m in diameter. The temporal resolution is 4 hours. The survival of the sensors depended on staying fixed to the floe and the battery life. Unit 1 provided GPS location from the 5th July 2017 to 1st December 2017, started at 62.84 S and 30.20 E and finished at 61.55 S and 55.99 E. Unit 2 provided GPS location from the 5th July 2017 to 3rd August 2017, started at 62.83 S and 30.20 E and finished at 62.36 S and 31.57 E. Unit 3 provided GPS location from the 5th July 2017 to 15st August December 2017, started at 62.59 S and 29.98 E and finished at 61.16 S and 35.60 E. In the .xlsx submission sheet 1 refers to Unit 1, sheet 2 to Unit 2, and sheet 3 to Unit 3. First column is the Unit Identifier (1,2,3) Second column is the date in the format day/month/year Third column is the UTC time in the format hh:mm:ss Fourth column is the latitude in degrees and decimals, the negative refers to South Fifth column is the longitude in degrees and decimals, the positive refers to East