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

* Last revised: 14:26:34 06/30/21

**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 47'W 75 34'S 179
a6356 49'W 66 21'S 179
a6461 3'W 67 31'S 179
a69a61 3'W 67 31'S 179
a69b60 18'W 67 12'S 179
a7060 42'W 68 18'S 179
a7426 37'W 75 15'S 179
a76a58 56'W 74 56'S 179
a76b57 55'W 74 5'S 179
a76c56 18'W 74 10'S 179
b09b143 25'E 66 16'S 179
b09g41 50'E 68 12'S 179
b09i45 10'W 64 51'S 179
b15ab50 59'E 66 4'S 179
b22a109 32'W 73 52'S 179
b28108 46'W 74 40'S 179
b29108 54'W 74 31'S 179
b37112 36'W 72 24'S 179
b38155 13'W 77 2'S 179
b3913 27'E 68 52'S 179
b40132 11'E 65 37'S 179
b42140 57'W 74 28'S 179
b45109 20'W 74 40'S 179
b46115 28'W 72 31'S 179
b47133 44'W 73 47'S 179
b50155 3'W 75 41'S 179
c15143 17'E 65 58'S 179
c18b89 33'E 66 33'S 179
c21b95 49'E 64 58'S 179
c2496 1'E 64 50'S 179
c29142 52'E 66 4'S 179
c3096 18'E 64 46'S 179
c3196 32'E 64 40'S 179
c32132 48'E 66 3'S 179
c33126 40'E 65 27'S 179
c35147 52'E 67 19'S 179
c36147 28'E 67 56'S 179
d15a81 54'E 66 38'S 179
d15b81 34'E 66 57'S 179
d20a36 11'E 68 26'S 179
d2374 39'E 69 25'S 179
d2629 19'E 69 24'S 179
d2750 21'E 66 2'S 179
d2814 25'E 69 7'S 179
d29a17 21'E 69 31'S 179
d29b18 5'E 69 37'S 179
d29c13 42'E 69 4'S 179
d30a12 30'E 69 3'S 179
d30b16 19'E 69 24'S 179
uk324149 1'E 66 33'S 179

*** 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)