1. Australian Antarctic Data Centre
2. Discover and Manage Data
3. Records
4. 199697050

Description

This dataset contains the underway data from Voyage 5 1996-97 (BRAD) of the Aurora Australis. This was a manned marine science cruise. The main project was to conduct seismic, benthic and geological survey of Vincennes Bay, MacRobertson Shelf, Nilsen Basin, Iceberg Alley and Prydz Bay. Voyage Leader, Marine Science Support Data Quality, Tide Gauge and Engineer's Reports are available via the Related URL section.

CTD data were also obtained.

The voyage leader's report listed the following scientific objectives:

1) Transfer passengers and cargo at Casey, for programs including research, hydrography, AWS, and station fresh produce etc.
2) Conduct high resolution seismic and coring program in Vincennes Bay, approximately 340 nm as part of the principal voyage determining project "Shelf and slope sedimentary signatures of Late Cenozic icesheet variability on the East Antarctic continental margin".
3) Deploy field party by helicopter to Gaussberg.
4) Search for upward looking sonars of glaciology program at 68 degrees, 8.32 minutes S, 76 degrees 1.98 minutes E and 66 degrees 15.31 S, 77 degrees 2.74 minutes E.
5) Conduct part 2 of seismic/coring program in Prydz Bay (approximately 994 nm), especially the Trough Mouth Fan centred on 67 degrees S, 72 degrees E, including ODP site survey work.
6) Conduct benthic dredge program for the project, "Biodiversity and biogeography of benthic and benthopelagic invertebrates on the continental shelf in eastern Antarctica".
7) Conduct part 3 of the seismic/coring program, concentrating on the Nielsen Basic area of the Mac.Robertson Shelf.
8) Proceed to Heard Island for tide gauge retrieval and deployment, aerial photography and AWS program, and various other smaller projects. Subsidiary reconnaissance for illegal fishing vessels. Along the way, deploy two meteorological buoys.

Quality

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.

Access

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.

Temporal Coverages

• Start date: 1997-01-28 - Stop date: 1997-03-29

Spatial Coverages

Science Keywords

• EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
• EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY
• EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS
• EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION
• EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
• EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
• EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
• EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE

Use Constraints

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=199697050 when using these data.