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Current* Antarctic large iceberg positions derived from ASCAT and OSCAT-2**

* Last revised: 12:23:48 02/24/20

**Operational users please note: This list cannot possibly contain all potentially hazardous icebergs in Antarctic waters -- Scatterometers such as ASCAT and OSCAT-2 were designed for measuring ocean winds, not icebergs. Scatterometer data is useful for tracking icebergs, but is limited. During the Austral summer contrast between ocean and melting icebergs is reduced, which can result in gaps in visibility. Futher, as the SCP team is not an operational agency, errors are expected and we cannot be held responsible for omissions or errors in this database. Also note that the large icebergs tracked here tend to shed smaller iceberg fragments which are serious navigation hazards in nearby areas. Fragments (large and small) can drift substantial distances from their origins.

This information supplements the Antarctic Iceberg dataset maintained by the U.S. National Ice Center (NIC). If an inconsistency is observed, we recommend that NIC be considered authoritative.

This page is typically updated once or twice a week, typically on Mondays and possibly Fridays. Positions reported here are extracted from near real-time ASCAT and OSCAT-2 data in tandem. Positions reported in the full iceberg database are generated from science data and have been more accurately tracked. The full database is updated only a few times per year

 
Iceberg***   Longitude   Lattitude Most recent observation  
(day of year****)
a23a41 6'W 75 47'S 053
a6347 0'W 76 18'S 053
a6461 35'W 69 54'S 053
a68a57 9'W 64 53'S 312
a68b58 34'W 64 38'S 328
b09b143 15'E 66 10'S 053
b09g41 39'E 67 58'S 053
b09i33 10'E 68 15'S 053
b15aa30 34'W 53 29'S 051
b15ab51 3'E 66 1'S 053
b1624 15'W 56 8'S 051
b22a109 18'W 73 58'S 053
b28108 48'W 74 48'S 364
b29108 56'W 74 31'S 364
b37110 22'W 72 51'S 341
b38155 23'W 77 3'S 053
b3977 13'E 68 21'S 053
b40132 15'E 65 40'S 053
b41156 20'W 76 32'S 053
b42125 41'W 73 1'S 364
b43176 16'W 70 48'S 053
b45109 20'W 74 45'S 328
b46105 38'W 74 25'S 053
b47133 0'W 73 48'S 364
c15143 11'E 66 10'S 053
c18b113 53'E 65 28'S 364
c21b95 57'E 64 56'S 328
c2496 0'E 64 50'S 328
c29142 53'E 66 6'S 364
c3096 17'E 64 46'S 328
c3196 32'E 64 38'S 328
c32132 39'E 66 0'S 290
c33144 27'E 66 23'S 364
c34108 28'E 65 34'S 053
c35148 19'E 68 10'S 007
c36147 51'E 68 4'S 053
d15a81 58'E 66 33'S 357
d15b81 34'E 66 59'S 053
d20a36 20'E 68 45'S 053
d21b35 59'W 75 17'S 053
d2266 58'E 67 2'S 349
d2374 40'E 69 20'S 343
d2629 29'E 69 20'S 360
d2781 48'E 67 16'S 360
d2871 4'E 68 8'S 364
uk324148 51'E 66 37'S 279

*** National Ice Center (NIC) iceberg designations are used where possible. Additional fragments are numbered. Icebergs not designated by NIC are denoted as "uk". Fragments not separately tracked by NIC may have additional numbers following their designation.

**** UTC day-of-year. Day of year chart


BYU Antarctic Iceberg Database - Comprehensive historic database of Antarctic iceberg positions derived from enhanced resolution scatterometer image time series spanning from 1978 through the present.

Selected papers on scatterometer iceberg tracking:
Paper (2.1MB pdf) K.M. Stuart and D.G. Long, "Tracking large tabular icebergs using the SeaWinds Ku-band microwave scatterometer", Deep-Sea Research Part II, doi:10.1016/j.dsr2.2010.11.004, Vol. 59, pp. 1285-1300, 2011.
Paper (620 kB pdf) D.G. Long, Jarom Ballantyne, and C. Bertoia, "Is the Number of Icebergs Really Increasing?" EOS, Transactions of the American Geophysical Union, Vol. 83, No. 42, pp 469 & 474, 15 Oct. 2002
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