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

* Last revised: 19:21:13 10/07/21

**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 33'W 75 29'S 279
a6353 53'W 63 58'S 278
a6460 55'W 67 27'S 279
a69a60 24'W 67 11'S 279
a69b59 48'W 66 57'S 279
a7060 33'W 67 38'S 279
a7432 18'W 76 30'S 279
a76a59 20'W 73 14'S 279
a76b60 12'W 73 57'S 279
a76c59 28'W 71 29'S 279
a7724 35'W 73 23'S 279
a784 22'W 70 15'S 279
b09b143 28'E 66 16'S 279
b09g41 47'E 68 12'S 279
b09i34 59'W 60 40'S 279
b15ab50 55'E 65 59'S 279
b22a109 32'W 73 52'S 279
b28108 46'W 74 40'S 279
b29108 54'W 74 29'S 279
b37113 16'W 72 19'S 279
b38155 19'W 77 5'S 279
b3920 55'W 72 56'S 279
b40132 8'E 65 38'S 279
b42148 58'W 73 56'S 279
b45109 20'W 74 40'S 279
b46130 16'W 72 29'S 279
b47134 4'W 73 51'S 279
b50166 9'W 71 40'S 279
c15143 13'E 65 58'S 279
c18b89 33'E 66 33'S 279
c21b95 49'E 64 58'S 279
c2496 1'E 64 50'S 279
c29142 49'E 66 4'S 279
c3096 18'E 64 46'S 279
c3196 32'E 64 40'S 279
c32132 48'E 66 3'S 279
c33126 40'E 65 27'S 279
c35147 59'E 67 16'S 279
c36147 28'E 67 56'S 279
d15a81 54'E 66 38'S 279
d15b81 34'E 66 57'S 279
d20a33 21'E 68 10'S 279
d2374 39'E 69 25'S 279
d2629 24'E 69 21'S 279
d2740 9'E 68 7'S 279
d2811 28'W 70 43'S 279
d29a13 6'W 70 55'S 279
d29b4 25'W 70 6'S 279
d29c11 17'W 70 38'S 279
d30a19 42'W 72 29'S 279
d30b11 16'W 70 39'S 279
uk324148 55'E 66 34'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)