In situ Lagrangian drifting buoy data off East Antarctica for the austral spring of 2012, deployed during the SIPEX II voyage of the Aurora Australis
Entry ID: SIPEX_II_Buoys

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Summary
Abstract: In situ Lagrangian drifter positions were collected from nine expendable sea-ice buoys. Positions were collected by GPS receivers aboard each buoy and relayed via the CLS Argos satellite data system.

The scientific proposal for this project was based on the deployment of two meso-scale buoy arrays over the continental shelf break in the SIPEX 2012 experimental region. Resolving of ice motion over the continental shelf and the shelf break is expected to provide crucial information on sea-ice deformation and ice strength. However, due to the unfavourable cruise track and also due to operational issues with helicopter support, it was not possible to deploy any of the meso-scale buoy arrays. Instead buoys were deployed to resolve ice deformation within the wider SIPEX 2012 region.

Position data are available hourly from most buoys. CLS Argos transmitted data suffer from a data transmission blackspot just prior to local none, when there will be no data available.

Data processing will be carried out as described in Heil et al. [2008]
The dataset contains ASCII files for each buoy with time stamps and observed latitude and longitude.

Related URL
Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 4072


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 4073


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Parent DIF
This data set description is a member of a collection. The collection is described in
SIPEX_II


Geographic Coverage
 N: -60.0 S: -66.0  E: 122.0  W: 117.0

Temporal Coverage
Start Date: 2012-09-01


Location Keywords
OCEAN > SOUTHERN OCEAN
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
OCEANS >OCEAN CIRCULATION >OCEAN CURRENTS    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
OCEANS


Platform
R/V AA >R/V Aurora Australis


Instrument
DRIFTING BUOYS    [Information]


Quality
Deployment opportunities were compromised due to poor flying conditions (weather) as well as, at some occasions, due to inefficient flight scheduling.

Scientific deployment plan was not fully reflected in Service Level Agreement.

Standard Operating Procedures for ice-floe work via helicopter makes the realisation of meso-scale ice-physics work difficult. Importantly both helicopters have to work together (within visibility of each other, which for meso-scale work means that each buoy deployment requires two helicopters to be present. Helicopters were only allowed to shut down once safely landed on an ice floe, if they were within 20nm of the support vessel. Having not only one but two helicopters under power sharing ones workspace on often confined ice floes impacts on communication and work efficiency for the deployment team.


Access Constraints
These data are not yet publicly available.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II... when using these data.


Keywords
SIPEX


Data Set Progress
IN WORK


Originating Center
Australian Antarctic Division


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


Personnel
PETRA HEIL
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6226 7646
Fax: +61 3 6226 7650
Email: petra.heil at utas.edu.au
Contact Address:
Antarctic CRC
GPO Box 252 - 80
University of Tasmania
City: Hobart
Province or State: Tasmania
Postal Code: 7001
Country: Australia


JENNIFER HUTCHINGS
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Email: jenny at iarc.uaf.edu
Contact Address:
University of Alaska, Fairbanks
International Arctic Research Center
P.O. Box 757340
City: Fairbanks
Province or State: AK
Postal Code: 99775-7340
Country: USA


ROGER STEVENS
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Phone: +61 3 6226 2838
Email: rogers2 at postoffice.utas.edu.au
Contact Address:
Inistitute for Marine and Antarctic Studies
City: Sandy Bay
Province or State: Tasmania
Postal Code: 7005
Country: Australia


OLIVER LECOMTE
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Email: Olivier.Lecomte at uclouvain.be
Contact Address:
University Catholique
City: Louvain-la-Neuve
Province or State: Wallonia
Country: Belgium


Publications/References
Heil, P., J.K. Hutchings, A.P. Worby, M. Johansson, J. Launiainen, C. Haas, and W.D. Hibler III (2008), Tidal forcing on sea-ice drift and deformation in the Western Weddell Sea during December 2004, Deep-Sea Research II, 58, 8-9, 943-962

Creation and Review Dates
DIF Creation Date: 2013-01-15
Last DIF Revision Date: 2014-09-12

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