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

* Last revised: 17:16:59 03/04/20

**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 061
a6346 54'W 76 17'S 061
a6461 35'W 69 54'S 061
a68a57 9'W 64 53'S 312
a68b56 37'W 63 25'S 039
b09b143 15'E 66 10'S 061
b09g41 39'E 67 58'S 061
b09i32 14'E 68 26'S 061
b15aa31 22'W 53 10'S 061
b15ab51 3'E 66 1'S 061
b1624 15'W 56 8'S 051
b22a109 18'W 73 58'S 061
b28108 48'W 74 48'S 061
b29108 56'W 74 31'S 061
b37111 15'W 72 37'S 061
b38155 23'W 77 3'S 061
b3976 54'E 68 26'S 061
b40132 15'E 65 40'S 061
b41156 55'W 76 40'S 061
b42125 41'W 72 59'S 060
b43176 59'W 70 30'S 061
b45109 29'W 74 44'S 061
b46105 38'W 74 25'S 061
b47133 19'W 73 58'S 056
c15143 11'E 66 10'S 061
c18b114 8'E 65 28'S 061
c21b95 55'E 65 0'S 061
c2496 6'E 64 54'S 047
c29142 48'E 66 7'S 061
c3096 10'E 64 54'S 047
c3196 34'E 64 45'S 061
c32132 39'E 66 0'S 290
c33141 45'E 65 49'S 061
c34108 46'E 65 35'S 061
c35148 16'E 68 7'S 061
c36147 51'E 68 4'S 061
d15a81 58'E 66 33'S 061
d15b81 34'E 66 59'S 061
d20a36 13'E 68 41'S 061
d21b34 59'W 74 53'S 061
d2266 45'E 67 19'S 016
d2374 39'E 69 25'S 061
d2629 29'E 69 26'S 061
d2781 48'E 67 17'S 061
d2872 22'E 67 17'S 061
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)