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

* Last revised: 17:45:07 08/28/20

**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 29'W 75 39'S 240
a6345 30'W 74 3'S 240
a6461 0'W 69 45'S 240
a68a48 47'W 59 16'S 240
a68c34 24'W 57 18'S 240
a69a60 44'W 68 49'S 240
a69b60 30'W 68 38'S 240
b09b143 24'E 66 13'S 240
b09g41 37'E 67 58'S 240
b09i33 29'W 72 19'S 240
b15ab51 1'E 66 1'S 240
b22a109 18'W 73 58'S 240
b28108 48'W 74 48'S 240
b29109 6'W 74 34'S 240
b37111 32'W 72 43'S 240
b38155 13'W 77 4'S 240
b3960 15'E 66 40'S 240
b40132 12'E 65 37'S 240
b41172 3'W 72 26'S 240
b42126 39'W 72 53'S 240
b43165 9'E 67 35'S 240
b45109 29'W 74 44'S 240
b46106 13'W 74 27'S 240
b47133 47'W 73 45'S 240
b49105 16'W 74 27'S 240
b50133 13'W 73 43'S 240
c15143 21'E 65 59'S 240
c18b101 2'E 64 57'S 240
c21b95 55'E 65 0'S 240
c2495 57'E 64 57'S 240
c29142 54'E 66 5'S 240
c3096 20'E 64 47'S 240
c3196 32'E 64 42'S 240
c32132 45'E 66 5'S 240
c33129 44'E 65 23'S 240
c3488 42'E 65 36'S 240
c35148 6'E 68 12'S 240
c36147 55'E 68 4'S 240
d15a81 49'E 66 36'S 240
d15b81 34'E 66 59'S 240
d20a36 16'E 68 38'S 240
d21b44 27'W 66 34'S 240
d2374 39'E 69 25'S 240
d2629 29'E 69 26'S 240
d2779 31'E 67 34'S 240
d2859 5'E 66 22'S 240
uk324148 56'E 66 33'S 240

*** 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)