1. Australian Antarctic Data Centre
2. Discover and Manage Data
3. Records
4. 198586050

Description

This dataset contains bathymetry (water depth), ship's heading, ship's speed and position data collected during the Nella Dan Voyage 5 1985-86. This voyage visited Davis, Mawson, Casey and Edgeworth David, as well as carrying out marine science research in Prydz Bay. Data are available online via the Australian Antarctic Division Data Centre web page (see Related URL below). For further information, see the Marine Science Support Voyage Report at the Related URL below.

Voyage Goals

1) To depot the Bunger Hills field party at the Shackleton Ice Shelf and transport personnel and necessary supplies to Edgeworth-David or the inland edge of the ice shelf as required.

2) To transfer passengers to and from Casey, Davis, and Mawson stations in accordance with the passenger list.

3) To transfer cargo to Mawson as a major goal, and to Davis and Casey as may be necessary.

4) To recover RTA cargo from Mawson and other stations as may be available during their respective discharge operations; to recover German ecologist's cargo from Casey for onward shipment to European destinations on Nella Dan.

5) To transfer approximately 300,000 lts of SAB at Mawson.

6) To support a helicopter visit to Scullin Monolith preferably from Mawson, but alternatively from the Nella Dan for the purposes of bird marking, etc.

7) To recover and redeploy, as part of an oceanography program, tide and current meters from the Prydz Bay and Mawson areas.

8) To deploy Bureau of Meteorology Buoys enroute to the Shackleton Ice Shelf from Hobart.

9) To undertake brief beam and surface trawls at current meter mooring sites, time and weather conditions permitting.

10) If suitable opportunity permits, undertake mapping of fronts of Amery Ice Shelf, Shackleton Ice Shelf, and Denman Glacier.

Goals 1 to 9 were achieved, but due to lack of suitable opportunity and time, goal 10 was not. In addition, passengers and cargo were transferred from Icebord Voyage 6 for delivery to Mawson, and a field camp was established from the ship at Larsemann Hills, south of Davis, and retrieved.

Quality

See Marine Science Support Voyage Report at Related URL below.

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 Australian Antarctic Division Data Centre 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. The supplementary dataset also contains a scanned copy of the acoustics log from the voyage.

Temporal Coverages

• Start date: 1986-01-04 - Stop date: 1986-02-22

Spatial Coverages

60

150

-70

-40

+-

Leaflet

Latitude

Northernmost:

-40

Southernmost:

-70

Longitude

Westernmost:

60

Easternmost:

150

Science Keywords

• EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH

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=198586050 when using these data.