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

* Last revised: 20:41:34 07/23/21

**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****)
a23a39 52'W 75 30'S 197
a6356 50'W 65 54'S 197
a6460 59'W 67 28'S 197
a69a60 46'W 67 25'S 197
a69b60 13'W 67 8'S 197
a7060 42'W 68 8'S 197
a7426 42'W 75 14'S 197
a76a58 42'W 74 43'S 197
a76b59 15'W 74 7'S 197
a76c57 6'W 74 5'S 197
b09b143 25'E 66 16'S 197
b09g41 50'E 68 12'S 197
b09i45 38'W 64 46'S 197
b15ab50 59'E 66 4'S 197
b22a109 32'W 73 52'S 197
b28108 46'W 74 40'S 197
b29108 54'W 74 29'S 197
b37113 36'W 72 13'S 197
b38155 13'W 77 2'S 197
b399 25'E 69 13'S 197
b40132 11'E 65 37'S 197
b42141 48'W 74 29'S 197
b45109 20'W 74 40'S 197
b46118 43'W 72 14'S 197
b47133 48'W 73 48'S 197
b50157 16'W 75 40'S 197
c15143 17'E 65 58'S 197
c18b89 33'E 66 33'S 197
c21b95 49'E 64 58'S 197
c2496 1'E 64 50'S 197
c29142 43'E 66 6'S 197
c3096 18'E 64 46'S 197
c3196 32'E 64 40'S 197
c32132 48'E 66 3'S 197
c33126 40'E 65 27'S 197
c35147 52'E 67 19'S 197
c36147 28'E 67 56'S 197
d15a81 54'E 66 38'S 197
d15b81 34'E 66 57'S 197
d20a36 11'E 68 24'S 197
d2374 39'E 69 25'S 197
d2629 24'E 69 21'S 197
d2749 24'E 66 21'S 197
d2811 20'E 69 17'S 197
d29a15 41'E 69 6'S 197
d29b13 40'E 69 6'S 197
d29c10 10'E 69 33'S 197
d30a10 12'E 69 33'S 197
d30b12 27'E 69 5'S 197
uk324149 1'E 66 33'S 197

*** 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)