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

* Last revised: 16:27:26 04/07/20

**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 7'W 75 51'S 096
a6346 57'W 76 17'S 096
a6461 4'W 69 44'S 096
a68a49 46'W 61 25'S 095
a68b53 38'W 63 23'S 095
b09b143 15'E 66 10'S 096
b09g41 42'E 67 58'S 096
b09i15 55'E 69 15'S 096
b15aa30 32'W 53 16'S 071
b15ab51 3'E 66 1'S 096
b1622 56'W 58 29'S 060
b22a109 18'W 73 58'S 094
b28108 48'W 74 48'S 094
b29108 56'W 74 31'S 094
b37112 29'W 72 24'S 094
b38155 21'W 77 4'S 094
b3975 5'E 68 6'S 094
b40132 13'E 65 37'S 094
b41156 58'W 76 31'S 094
b42125 32'W 73 1'S 094
b43179 28'W 69 45'S 094
b45109 29'W 74 44'S 094
b46105 38'W 74 25'S 094
b47133 48'W 73 48'S 094
b48115 58'W 73 54'S 094
b49105 7'W 74 22'S 096
c15143 21'E 65 59'S 096
c18b113 49'E 65 24'S 096
c21b95 55'E 65 0'S 096
c2496 6'E 64 54'S 096
c29142 54'E 66 5'S 096
c3096 10'E 64 54'S 096
c3196 34'E 64 45'S 096
c32132 42'E 66 1'S 096
c33138 21'E 65 34'S 096
c34107 19'E 65 33'S 096
c35148 14'E 68 10'S 096
c36147 51'E 68 4'S 096
d15a81 49'E 66 36'S 096
d15b81 34'E 66 59'S 096
d20a36 13'E 68 41'S 096
d21b40 35'W 73 18'S 096
d2266 45'E 67 19'S 016
d2374 39'E 69 25'S 096
d2629 29'E 69 26'S 096
d2781 48'E 67 17'S 096
d2874 2'E 66 57'S 096
uk324148 51'E 66 37'S 288

*** 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)