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4. au1402

Description

Oceanographic measurements were collected aboard Aurora Australis cruise au1402, voyage 2 2014/2015, from 5th December 2014 to 25th January 2015. The cruise commenced with a Casey resupply, followed by work around the Dalton Polynya/Moscow University Iceshelf/Totten Glacier system, and then around the Mertz Glacier region. A total of 141 CTD vertical profile stations were taken on the cruise, most to within 11 metres of the bottom. Over 1000 Niskin bottle water samples were collected for the measurement of salinity, dissolved oxygen, nutrients (phosphate, nitrate+nitrite and silicate), dissolved inorganic carbon (i.e. TCO2), alkalinity, helium, 18O, and biological parameters, using a 24 bottle rosette sampler. Full depth current profiles were collected by an LADCP attached to the CTD package, and bottom video footage was collected by a camera system (also mounted to the CTD package) for most casts. Upper water column current profile data were collected by a ship mounted ADCP. An underway CTD system (P.I. Alex Orsi, Texas A and M University) was used to collected measurements from the aft of the ship along several small transects around the Dalton Polynya. Meteorological and water property data were collected by the array of ship's underway sensors. 10 'Argo equivalent' floats were also deployed in both the Totten and Mertz regions, for an ice float pilot study.

Six oceanographic moorings were recovered from around the Dalton Polynya, three Australian and three US (for the US moorings: P.I.'s Alex Orsi, Texas A and M University, Amy Leventer, Colgate University, and Eugene Domack, University of South Florida). Three temporary acoustic sound source moorings were also deployed then recovered in the same area, in support of an autonomous glider deployment (P.I. Craig Lee, University of Washington). Three oceanographic moorings were recovered from the Mertz region, two Australian and one French (P.I. Marie-Noelle Houssais, Universite Pierre et Marie Curie, for the French mooring).

The data set here includes the CTD and Niskin bottle data, in both text and matlab format. The included README file gives full details on file formats.

Quality

A full data report, including data quality information, is included with the data set.

Access

These data are publicly available for download from the provided URL.

A previous version of this dataset was referenced by doi:10.4225/15/57DA1C27482AD

Temporal Coverages

• Start date: 2014-12-05 - Stop date: 2015-01-25

Spatial Coverages

Science Keywords

• EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
• EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
• EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
• EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
• EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE

Use Constraints

Please use the following citation:

Rosenberg, M. and Rintoul, S., unpublished. Aurora Australis marine science cruise AU1402 - Totten and Mertz CTDs and moorings - oceanographic field measurements and analysis. ACE Cooperative Research Centre, May 2016, unpublished report. 69 pp.

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=au1402 when using these data.