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Global Change Master Directory (GCMD)
Sea Ice Mass Balance in the Antarctic - Ice Buoys
Entry ID: SIMBA_Ice_Buoys


Summary
Abstract: Three ice mass-balance buoys (IMBs) were deployed on 2, 4 and 12 October 2007 at sites Brussels and Liège at locations close to the clean sampling sites during a 27 day occupation of an ice station floe (Ice Station Belgica(ISB)) in the Bellingshausen Sea. IMBs were designed and constructed by the Cold Regions Research and Engineering Laboratory and equipped with data acquisition systems mounted on steel framed tables anchored to the sea ice. Instrumentation on each buoy consisted of a common suite of sensors including thermistors in the upper ocean, sea ice, snow and air at 0.05 or 0.10 m interval; acoustic range-finder sounders to record the ice bottom and snow surface elevation. Additional sensors included an underwater radiometer (1 buoy) and Seabird conductivity?temperature?depth (CTD) sensors (2 buoys). The buoys were equipped with global positioning system (GPS) receivers and communications equipment that utilized System ARGOS satellite uplink to transmit data. The Seabird 1 buoy installed at Liège was recovered prior to departure from ISB due to problems with its CTD sensor, while the other two IMBs operated for 55 and 73 days. During ISB the IMBs drifted eastward with the floe, changing directions midway to a westward track. After departing ISB, the surviving IMBs (radiometer and Seabird 2) drifted primarily in a northeast direction, extending northward beyond Peter I Island until 23 November, at which time, the GPS position records diverged and the IMB trajectories separated near 69.001°S, 91.453°W. The buoy sensors provided two-hourly data for the duration of the drift. However, premature loss of thermistors, snow pinger and air temperature sensors occurred on the radiometer buoy on 1 November and the radiometer stopped operating around 26 November. The Seabird 2 IMB maintained thermistor data transmissions until 6 December, at which time the buoy ceased to operate at approximately 67.717°S, 89.244°W. On 14 December (67.295°S, 85.665°W), the radiometer buoy ceased transmission of barometric pressure and GPS location.

Purpose: The data set helped develop a time series of sea and ice properties in a remote way. Additionally, this testing was done to understand the ice representations in respect to seasonal changes. Through the understanding of ice thickness and property variations, better models can be developed to understand future ice measurements.

Related URL
Link: View Related Information

Parent DIF
This description is a member of a collection. The collection is described in
Project ID: SIMBA Drift Station


Geographic Coverage
 N: -61.85 S: -70.683  E: -64.05  W: -94.85

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 2007-09-01
Stop Date: 2007-10-31


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


Science Keywords
CRYOSPHERE >SEA ICE >ICE FLOES    [Definition]
CRYOSPHERE >SNOW/ICE >ICE GROWTH/MELT    [Definition]
OCEANS >OCEAN PRESSURE >WATER PRESSURE    [Definition]
CRYOSPHERE >SEA ICE >SNOW DEPTH    [Definition]


Platform
SV >Snow Vehicle    [Information]
BUOYS    [Information]
GPS >Global Positioning System Satellites    [Information]
R/V NBP >R/V Nathaniel B. Palmer    [Information]


Instrument
DRIFTING BUOYS    [Information]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]
IPY >INTERNATIONAL POLAR YEAR    [Information]
ANTARCTIC SEA ICE >Antarctic Sea Ice in International Polar Year    [Information]
SIMBA >Sea Ice Mass Balance in the Antarctic    [Information]
SIMBA DRIFT STATION >Sea Ice Mass Balance in the Antarctic-SIMBA Drift Station    [Information]


Access Constraints
None


Keywords
Ice Mass Balance Buoys


Data Set Progress
COMPLETE


Data Center
National Snow and Ice Data Center    [Information]
Data Center URL: http://nsidc.org

Data Center Personnel
Name: STEPHEN ACKLEY
Phone: +1 1 210 341 6556
Email: sackley at pol.net, Stephen.ackley at utsa.edu
Contact Address:
118 W Castle Ln
City: San Antonio
Province or State: Texas
Postal Code: 78213
Country: USA



Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Personnel
STEPHEN ACKLEY
Role: INVESTIGATOR
Phone: +1 1 210 341 6556
Email: sackley at pol.net, Stephen.ackley at utsa.edu
Contact Address:
118 W Castle Ln
City: San Antonio
Province or State: Texas
Postal Code: 78213
Country: USA


JESSICA JIMENEZ
Role: METADATA AUTHOR
Phone: 956-451-9288
Email: Jessica.jimenez_eng at yahoo.com
Contact Address:
3407 Ivy Ave
City: Hidalgo
Province or State: Texas
Postal Code: 78557
Country: USA


Publications/References
M.J. Lewis, J.L. Tison, B. Weissling, B. Delille, S.F. Ackley, F. Brabant and H.Xie (2011-01-01T00:00:00.000Z), Sea-Ice and snow cover characteristics during the winter-spring transition in the Bellingshausen SEa: An overview of SIMBA 2007, Deep-Sea Research Part II, 58, 9-10, 1019-1038, doi:10.1016/j.drs2.2010.10.027, http://www.sciencedirect.com/science/article/pii/S096706451000305X
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2012-02-16
Last DIF Revision Date: 2018-08-29



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