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 7 1994-95 of the Aurora Australis. This was a resupply voyage, and NoQalms data types were logged at 20-second intervals. The observations were taken between April and May 1995 on route from Hobart to Macquarie Island to Casey and back to Hobart. The Voyage Lader's report and the Marine Science Support Data Quality Report is available via the Related URL section.
From the Voyage Leader's Report:
The scientific aims of the voyage were:
1) Provide shipboard support for the conduct of the scientific and operational projects.
2) Deploy Met Bureau buoys.
3) Conduct iceberg observations.
4) Attempt to catch and maintain at least 300 krill.
5) Deploy Glaciology buoys.
6) Attempt to recover a sea ice sonar mooring located at 65 degrees 7.35 minutes S, 107 degrees, 46.13 minutes E.
7) Undertake a bathymetric survey to and from Macquarie Island.
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 on-line 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.
Reprts from the voyage are also available to 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=199495070 when using these data.
2013-03-12 - record updated by Dave Connell to include a quality statement provided by Miles Jordan. 2014-05-15 - 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. 2023-11-27 - record updated by Dave Connell to alter URL Content Types. 2024-02-08 - record updated by Dave Connell to alter the citation. 2024-02-29 - record updated by Dave Connell to add a DOI, and to add a voyage track link at the request of Lewis Rockliffe. 2024-04-10 - record updated by Dave Connell to add more reports to the download. 2024-01-30 - record updated by Dave Connell - basic updates.