Ross Sea Icebergs (B15A, C16, B15J, B15K, C25 and Nascent): Drift, weather and seismic data.
Entry ID:
macayeal_0229546
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Summary
Abstract:
During 2001-2006, 6 giant icebergs (B15A, B15J, B15K, C16 and C25) adrift in the southwestern Ross Sea, Antarctica, were instrumented with global positioning system (GPS) receivers, magnetic compasses, automatic weather stations (AWS), firn temperature profile sensors, seismometers, and automated cameras to monitor their behavior in the near-coastal environment and to record their exit into the ... Southern Ocean. An additional package of instruments was deployed on a part of the Ross Ice Shelf (approximately 180° of longitude and about 25 km from the ice front) near the detachment rift responsible for detaching iceberg B15A and anticipated to be the site of the next major calving from the Ross Ice Shelf The data so far provide a phenomenological characterization of collision processes that influence iceberg drift behavior and break-up in the near coastal environment.
The GPS, AWS and firn temperature data were collected on a 20-minute interval, and seismic data (available here and elsewhere) and camera data were collected with a 100 Hz sample rate or a 6-hour sample rate, respectively. Many of the station data time series are continuous for periods of up to 7 years, with icebergs C16 and B15J having the longest records (and are still collecting data at the time of submission).
The data is considered useful for examining the processes of iceberg drift (and other behaviors) on time scales that are shorter than what is possible through satellite image iceberg tracking. The data contained here, particularly the GPS data, is considered complementary to the iceberg drift trajectory observations provided by satellites. In addition to GPS data from the icebergs, geodetic GPS data from the front of the Ross Ice Shelf was collected in 2005 to study tidal influences on ice-shelf flow. 
Related URL
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Description:
This site mirrors the NSIDC website archive.
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Multimedia Sample
View full image
Description:
February 8, 2007 NOAA-15 image showing B-15J. The new iceberg can be seen. Image shows AWS temperature in degrees Celsius.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: -78.0
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S: -78.0
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E: -178.0
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W: -178.0
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Data Set Citation
Dataset Originator/Creator:
Douglas R. MacAyeal
Dataset Title:
Iceberg Data
Dataset Series Name:
Series A
Dataset Release Date:
August 15, 2008
Dataset Release Place:
Chicago, IL
Dataset Publisher:
University of Chicago
Version:
1.0
Data Presentation Form:
asci text files and Matlab files
Temporal Coverage
Start Date:
2001-01-25
Stop Date:
2008-06-31
Data Resolution
Latitude Resolution:
10 m
Longitude Resolution:
10 m
Horizontal Resolution Range:
1 meter - < 30 meters
Vertical Resolution:
0.1 m
Vertical Resolution Range:
< 1 meter
Temporal Resolution:
1/100 sec
Temporal Resolution Range:
< 1 second
Quality
Refer to notes provided on the NSIDC website where data is archived.
Personnel
Role:
DIF AUTHOR
Phone:
(301) 713-0575
Fax:
(301) 713-1249
Email:
peter.l.grimm at noaa.gov
Contact Address:
NOAA Environmental Information Services
1315 East-West Highway, SSMC3, Station 15441
City:
Silver Spring
Province or State:
MD
Postal Code:
20910
Country:
USA
Creation and Review Dates
Last DIF Revision Date:
2012-02-23
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