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

* Last revised: 14:16:02 06/30/26

**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   Latitude Most recent observation  
(day of year****)
a76c31 45'W 52 53'S 179
a8154 8'W 62 14'S 179
a8352 0'W 63 39'S 179
a84108 18'W 72 25'S 179
a8555 28'W 66 20'S 179
b09b143 14'E 66 5'S 179
b09g41 26'E 68 12'S 179
b22a174 47'E 69 17'S 179
b22f179 8'E 66 40'S 179
b22h164 15'E 70 13'S 179
b29110 42'W 73 39'S 179
b51131 44'W 74 12'S 179
c15143 5'E 65 50'S 179
c18b47 22'E 67 4'S 179
c18c38 48'E 68 34'S 179
c21b95 53'E 64 58'S 179
c2496 1'E 64 50'S 179
c3096 16'E 64 46'S 179
c3196 30'E 64 43'S 179
c33101 12'E 65 13'S 179
c35142 56'E 66 12'S 179
c36146 30'E 67 30'S 179
c3964 16'E 66 48'S 179
d15a81 47'E 66 40'S 179
d15b81 28'E 67 1'S 179
d15c79 19'E 67 17'S 179
d15d79 22'E 67 16'S 179
d2374 37'E 69 28'S 179
d30b45 43'W 60 34'S 179
d3242 19'W 62 16'S 179
d33a55 1'W 64 19'S 179
d33b52 47'W 62 55'S 179
d33c53 57'W 63 34'S 179
d3481 55'E 67 6'S 179
d3546 18'W 62 31'S 179
d3686 49'E 66 16'S 172
d3736 20'E 69 12'S 179
uk324148 48'E 66 59'S 179
uk328149 3'E 66 6'S 139

*** 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)