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

* Last revised: 16:57:55 06/06/26

**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****)
a76c32 38'W 55 40'S 155
a8153 21'W 63 24'S 155
a8353 58'W 64 30'S 155
a84108 13'W 72 31'S 155
a8555 41'W 66 33'S 155
b09b143 14'E 66 5'S 155
b09g41 38'E 68 11'S 155
b22a176 41'E 69 41'S 155
b22f177 52'E 67 26'S 155
b22g159 51'W 66 47'S 127
b22h165 35'E 69 54'S 155
b22i179 15'W 68 9'S 122
b29110 42'W 73 39'S 155
b51131 36'W 74 13'S 155
c15143 5'E 65 49'S 155
c18b47 21'E 67 4'S 155
c18c38 57'E 68 31'S 155
c21b95 53'E 64 58'S 155
c2496 1'E 64 50'S 155
c3096 16'E 64 46'S 155
c3196 30'E 64 43'S 155
c33101 12'E 65 12'S 155
c35142 59'E 66 13'S 155
c36146 30'E 67 30'S 155
c3974 58'E 69 9'S 112
d15a81 47'E 66 40'S 155
d15b81 28'E 67 1'S 155
d15c79 27'E 67 15'S 155
d15d79 11'E 67 20'S 155
d2374 33'E 69 29'S 155
d30b45 43'W 60 35'S 155
d3246 8'W 63 50'S 155
d33a57 20'W 64 42'S 155
d33b54 4'W 64 8'S 155
d33c55 57'W 64 31'S 155
d3481 55'E 67 6'S 155
d3549 1'W 62 30'S 155
d3686 44'E 66 16'S 155
d3736 20'E 69 12'S 155
uk324148 52'E 66 58'S 155
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)