All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
This dataset contains the underway data collected during the Aurora Australis Voyage 4 1999-2000. This voyage visited Macquarie Island, Davis, Sansom Island and Mawson, as well as carrying out a ship and helicopter based seal survey. Underway (meteorological, fluorometer, thermosalinograph and bathymetric) data are available online via the Australian Antarctic Division Data Centre web page (or via the Related URL section). For further information, see the Voyage Leader's Report and the Marine Science Support Data Quality Report at the Related URL section.
The Voyage Leader's report lists the following scientific objectives:
- Undertake helicopter and ship-based seal survey utilising up to 24 days of ship time. Initial 24 days achieved before arrival at Davis, then an additional day between Davis and Mawson plus a further 2 days after Mawson making a total of 27 days devoted to Seal survey program.
- Retrieve current mooring meters. Despite several hours spent at each mooring site with countless traverses across each site with dredging equipment, no sign of the moorings was found.
See the Marine Science Support Data Quality and Programmer's Reports at the Related URL section.
Where data for a particular sensor do not exist for a particular time, the last known value is used unless the sensor has been disabled or has encountered an error. For example, some sensors only record data every minute, but the resolution for the underway dataset is 10 seconds, so the same value will be used 6 times a minute. No averages are taken for sensors that capture data at a rate other than every 10 seconds. Instead, each record will be a snapshot of each sensor at that time.
Data are available online via the Australian Antarctic Division Data Centre web page.
Reports from the voyage are also available for download
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=199900040 when using these data.
2013-05-28 - record updated by Dave Connell to include a quality statement by Miles Jordan. 2014-05-20 - record updated by Dave Connell - basic updates. 2019-09-19 - record updated by Dave Connell - basic updates to URLs. 2023-11-27 - record updated by Dave Connell to alter URL Content Types. 2024-02-08 - record updated by Dave Connell to alter the citation. 2024-03-05 - record updated by Dave Connell to add a DOI, and to add a voyage track link at the request of Lewis Rockliffe. 2024-04-29 - record updated by Dave Connell to add more reports to the download. 2025-02-13 - record updated by Dave Connell - basic updates.