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

* Last revised: 20:29:08 09/21/20

**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 19'W 75 35'S 263
a6344 16'W 73 36'S 263
a6461 0'W 69 45'S 263
a68a49 18'W 59 13'S 261
a68c32 45'W 56 48'S 254
a69a60 44'W 68 49'S 263
a69b60 36'W 68 36'S 263
b09b143 12'E 66 6'S 263
b09g41 41'E 67 57'S 263
b09i32 59'W 71 47'S 263
b15ab51 1'E 66 0'S 263
b22a109 18'W 73 58'S 263
b28108 48'W 74 48'S 263
b29109 6'W 74 34'S 263
b37111 32'W 72 43'S 263
b38155 30'W 77 3'S 263
b3959 29'E 66 35'S 263
b40132 13'E 65 40'S 263
b41176 24'W 72 21'S 263
b42126 29'W 72 52'S 263
b43165 5'E 67 35'S 247
b45109 29'W 74 44'S 263
b46106 39'W 74 6'S 263
b47133 32'W 73 44'S 263
b49106 18'W 74 8'S 263
b50133 1'W 73 43'S 263
c15143 21'E 65 59'S 263
c18b100 39'E 65 1'S 263
c21b95 55'E 65 0'S 263
c2495 55'E 65 0'S 263
c29142 54'E 66 7'S 263
c3096 20'E 64 47'S 263
c3196 32'E 64 42'S 263
c32132 45'E 66 5'S 263
c33129 44'E 65 20'S 263
c3484 36'E 65 50'S 263
c35148 6'E 68 12'S 263
c36147 55'E 68 4'S 263
d15a81 49'E 66 36'S 263
d15b81 34'E 66 57'S 263
d20a36 16'E 68 38'S 263
d21b43 41'W 65 25'S 263
d2374 39'E 69 25'S 263
d2629 29'E 69 26'S 263
d2779 31'E 67 34'S 263
d2858 35'E 66 5'S 263
uk324148 56'E 66 33'S 263

*** 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
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