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 from Voyage 1 1994-95 of the Aurora Australis. This was a resupply cruise, with limited marine science being carried out. NoQalms data types were logged at 20-second intervals. The observations were taken between August and October 1995 en route from Hobart to Macquarie Island to Davis and back to Hobart. See the Marine Science Support Data Quality Report via the Related URL section.
From the voyage leader's report:
The aims of the voyage were as follows:
1) Conduct iceberg observations in accordance with instructions provided by the Glaciology Section.
2) Meet any obligations for inspection of the vessel by other Treaty parties.
3) Support the following marine science activities.
- Study the East Antarctic Sea Ice Zone: Characteristics and Ocean - Ice - Atmosphere Interaction (Dr Ian Allison).
- Antarctic Pack Ice Seals (Dr Bill de la Mare).
- Sulphur Gas Production in the Southern Ocean (Dr Graham Jones).
- Collection of live Antarctic Krill, "Euphausia superba" (Dr Steve Nicol, collection by John Kitchener) - Not completed.
4) Transfer personnel and cargo by helicopter between the ship and shore at Macquarie Island including helipad components, RTA essential cargo and non-essential cargo weighing more than 700kg.
5) Conduct the Macquarie Island hut resupply, subject to weather conditions, helicopter availability and schedule limitations.
6) Transfer personnel and cargo by helicopter, or over ice transport if ice conditions are suitable, between the ship and shore at Davis.
7) Evaluate and report on the performance and suitability of S76 helicopters for Antarctic Division operations, within the scope of their use on the voyage.
Please see the Marine Science Support Data Quality Report via 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 AADC web page. A "supplementary" dataset is also available for download from the provided URL. It contains raw data collected directly from the ship, which has not been quality checked.
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=199495010 when using these data.
2013-02-26 - record updated by Dave Connell with a quality statement provided by Miles Jordan. 2014-05-14 - record updated by Dave Connell - basic updates. 2019-09-19 - record updated by Dave Connell - basic updates to URLs. 2021-08-27 - record updated by Dave Connell after supplementary data were added. 2023-08-10 - record updated by Dave Connell to add instrument keywords. 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. 2024-02-28 - record updated by Dave Connell to add a DOI, and to add a voyage track link at the request of Lewis Rockliffe. 2024-04-09 - record updated by Dave Connell to add more reports to the download. 2024-05-30 - record updated by Dave Connell - basic updates.