Data Trawler - Survey Details

SS2013_V02    - is a Marine National Facility voyage

Period: 2013-02-08 00:00 to 2013-02-24 21:00 UTC

Duration: 16.88 days

From: Brisbane To: Sydney

Region: Nothern Tasman Sea, south of Lord Howe Island and Lord Howe Island Marine Park.

Ship: Southern Surveyor [details]

Description: MNF Southern Surveyor research voyage SS2013_v02.Carbonate sedimentation at the southern margin of reef growth in the Tasman Sea. Scientific Objectives This research aims to determine the extent and composition of carbonate environments on and around volcanic edifices in the northern Tasman Sea. We plan to undertake the following investigations, listed in order of priority: 1. Examine the bathymetry and sedimentary environments across the shelf around Balls Pyramid, the remnant of a volcanic island just south of Lord Howe Island, from which such data are presently lacking; this will provide a basis for a more complete mapping of benthic habitats in the Lord Howe Marine Park. 2. Establish, using underwater towed video, whether a relict reef exists on the Balls Pyramid platform; this will confirm preliminary evidence that there may be a feature similar to the fossil reef on the shelf around Lord Howe, and would make it the southernmost known reef in the Pacific. Extend towed video to map major habitats of the Lord Howe Island Marine Park. 3. Extract rock cores from the Lord Howe relict reef (and that on the Balls platform, if found) providing material for component, age and geochemical determinations that will yield further insights into sea-level and climate (including palaeotemperature) history. 4. Collect vibrocores from the inner shelf on the Lord Howe shelf (and on the Balls platform if suitable areas are identified), in the lee of the relict reef, to determine the stratigraphy, source and depositional history of sequences of sediment revealed on Topas sub-bottom profiles and which appear to contain generations of 'lagoonal' sediment perhaps indicating that earlier reef features predated, and may underlie, the relict reef. 5. Undertake preliminary bathymetry transects and Topas sub-bottom profiles across the margin of Middleton and Elizabeth Reefs on the transit voyage to Lord Howe Island as a pilot study to better plan further data collection around these reefs in 2014. 6. Determine whether terraces identified on the shelf edge contain evidence of earlier episodes of reef development or are cut into basalt; this will provide evidence of sea level, clarifying the nature of the shoreline when the sea was at these heights (60-70m water depth), and would extend known distribution of pre-Holocene reef if shown to be biogenic features. 7. Examine slump features around both volcanic edifices to clarify their extent, and the nature and composition of sediment that covers them; this will clarify the post-eruptive history of the volcanic islands, and show the degree to which carbonate sediment from the shelf or hemipelagic sediment veneers their margins. 8. Resolve the morphology of the toe of the volcanoes, and collect mulitbeam sonar data on one or more of the small seamounts that have been detected adjacent to the Lord Howe volcano; this will clarify the nature of sediments and sedimentary deposits at the toe, and provide insights into the origin and benthic habitats of previously unknown seamounts. 9. Deploy sea-surface drifters to track ocean currents along the eastern margin of Australia. Drifters are expendable (not recovered) and can be deployed while underway.

Leader: C. Woodroffe (U Woollongong)

Project: National Facility External Users: C. Woodroffe (University of Wollongong) [details]

Voyage extents: 33° 55.0' S to 26° 43.8' S    151° 11.1' E to 159° 21.9' E Get voyage track shapefile Get CSV

Marlin Metadata:-

Metadata from OBIS Australia datasets:- biological data is published via the OBIS-AU IPT server and delivered to one or more of OBIS, ALA and GBIF

Participants - on ship:-

This list includes those that may have only been on part of the voyage. See voyage reports on 'Reports and Maps' tab for details.

Marine National Facility Reports - plans, summaries and data processing

• SS2013_V02 Voyage Plan - includes objectives, investigator details, proposed data collection, voyage track and equipment to be used.

• SS2013_V02 Underway Data Processing Report - details of data processing steps, calibration information, instruments used and any issues with the data.

• SS2013_V02 Voyage Summary - includes preliminary results, voyage narrative, types of data collected with C77/ROSCOP codes.

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Publications, reports and datasets from this voyage.

Data publishing

This is a list of online datasets hosted by CSIRO. Other processed datasets hosted by collaborating organisations may be found on the 'Metadata' or "Reports, Publications and Maps' tab.
Use the Get data link on the right to extract data using the NCMI Data Trawler.

Deployments by start time:- Click on column header to sort. Use link on 'Deployment' to see full details. Use the CSV button at the bottom to export data (tab delimited).

Search for deployments from this voyage and others

Deployment	Operation	Station	Cast	Gear	Project	Start and end times		Start Location		End Location		Depth range	Max Depth	Description
Underway System [details]				Air Temperature Sensor-HMT333,Barometer,Doppler speed log,Fluorometer WS3S-443P,Gill Ultrasonic Wind Sensor,Gill Ultrasonic Wind Sensor,Humidity Sensor-HMT333,IMOS Port Pyranometer-SN 35122F3,IMOS Port Radiometer-SN 35111F3,IMOS Stbd Pyranometer-SN 35123F3,IMOS Stbd Radiometer-SN 35093F3,IMOS rain gauge,IMOS rain gauge,Licor - LI-190SL Q46072,RM Young 05106 wind monitor-75621,RM Young 05106 wind monitor-75621,RM Young 05106 wind monitor-75621,RM Young Rain Gauge,Remote Temperature (T)-SN 2621,Seapath 200,Seapath 200,Seapath 200,Simrad EK60 echosounder,ThermoSalinoGraph (TSG)-SS-SN 1777	109	2013-02-08 00:09	2013-02-24 22:55	-27.4469	153.0784	-33.8620	151.1856
Multibeam echosounder [details]				EM300 Multibeam Echosounder		2013-02-08 05:44	2013-02-24 20:04	-26.7463	153.1882	-33.8886	151.4340		5536.4
ADCP Data [details]				RDI Ocean Surveyor Acoustic Doppler current profiler	109	2013-02-08 06:58	2013-02-24 17:49	-26.8280	153.3624	-33.7611	151.6078		653.5

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