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

* Last revised: 15:09:20 03/03/21

**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 0'W 75 45'S 060
a6355 57'W 70 57'S 060
a6460 38'W 69 1'S 060
a68a33 14'W 56 55'S 052
a68g34 53'W 56 55'S 051
a68h35 8'W 54 11'S 051
a68j35 14'W 56 2'S 052
a68m35 29'W 56 40'S 051
a69a61 3'W 67 50'S 061
a69b61 6'W 67 18'S 061
a7059 46'W 71 41'S 061
a7159 52'W 71 43'S 061
a7360 3'W 68 58'S 061
a7425 40'W 74 12'S 060
b09b143 11'E 66 19'S 061
b09g41 43'E 68 4'S 061
b09i42 53'W 69 52'S 061
b15ab51 8'E 66 1'S 061
b22a109 25'W 73 56'S 061
b28108 46'W 74 40'S 061
b29108 54'W 74 31'S 061
b37111 56'W 72 37'S 061
b38155 20'W 77 5'S 061
b3945 53'E 66 55'S 061
b40132 12'E 65 40'S 061
b42126 37'W 72 44'S 061
b45109 21'W 74 42'S 061
b46112 4'W 72 30'S 061
b47133 49'W 73 46'S 061
b50141 34'W 74 11'S 061
c15143 20'E 65 57'S 061
c18b95 35'E 64 30'S 059
c21b95 50'E 65 2'S 061
c2496 1'E 64 50'S 061
c29142 58'E 66 8'S 061
c3096 18'E 64 46'S 061
c3196 32'E 64 38'S 061
c32132 48'E 66 3'S 061
c33126 46'E 65 27'S 061
c35147 48'E 68 3'S 061
c36147 34'E 67 53'S 061
d15a81 56'E 66 39'S 061
d15b81 34'E 66 57'S 061
d20a36 18'E 68 39'S 061
d21b30 45'W 60 29'S 057
d2374 39'E 69 25'S 061
d2629 26'E 69 24'S 061
d2776 19'E 68 16'S 061
d2847 33'E 66 20'S 061
uk324148 57'E 66 34'S 061

*** 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)