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

* Last revised: 18:15:14 06/05/20

**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****)
a23a40 55'W 75 48'S 154
a6346 54'W 76 17'S 154
a6461 4'W 69 44'S 154
a68a49 0'W 60 6'S 152
a68b58 27'W 62 33'S 152
b09b143 11'E 66 8'S 152
b09g41 37'E 67 58'S 152
b09i3 44'E 70 5'S 152
b15ab51 1'E 66 2'S 152
b22a109 18'W 73 58'S 152
b28108 48'W 74 48'S 152
b29108 41'W 74 40'S 152
b37111 4'W 72 47'S 154
b38155 22'W 77 4'S 152
b3973 24'E 67 5'S 154
b40132 18'E 65 37'S 154
b41159 38'W 76 0'S 154
b42126 30'W 72 56'S 154
b43173 21'E 69 1'S 154
b45109 29'W 74 44'S 154
b46105 43'W 74 26'S 154
b47133 50'W 73 47'S 154
b48117 19'W 73 47'S 149
b49105 15'W 74 23'S 154
c15143 21'E 65 59'S 154
c18b113 44'E 65 28'S 154
c21b95 55'E 65 0'S 154
c2496 6'E 64 54'S 154
c29142 54'E 66 5'S 154
c3096 10'E 64 54'S 154
c3196 31'E 64 44'S 154
c32132 45'E 66 5'S 154
c33132 2'E 65 24'S 152
c3499 41'E 64 47'S 154
c35148 14'E 68 10'S 154
c36148 5'E 68 6'S 154
d15a81 49'E 66 36'S 154
d15b81 34'E 66 59'S 154
d20a36 16'E 68 38'S 154
d21b43 32'W 69 33'S 154
d2374 39'E 69 25'S 154
d2629 29'E 69 26'S 154
d2781 48'E 67 17'S 154
d2866 37'E 66 46'S 154
uk324148 51'E 66 37'S 083

*** 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)