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

* Last revised: 19:26:57 12/29/20

**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****)
a23a41 22'W 75 54'S 362
a6353 26'W 71 45'S 361
a6460 46'W 69 30'S 361
a68a37 5'W 56 2'S 356
a68d37 3'W 55 19'S 356
a68e35 57'W 57 6'S 360
a68f36 33'W 56 57'S 360
a69a60 40'W 68 12'S 361
a69b61 18'W 67 48'S 361
b09b143 18'E 66 11'S 362
b09g41 42'E 67 58'S 362
b09i39 54'W 70 39'S 362
b15ab51 2'E 66 2'S 361
b22a109 31'W 73 56'S 361
b28108 51'W 74 42'S 361
b29108 54'W 74 31'S 361
b37111 47'W 72 40'S 361
b38155 23'W 77 4'S 362
b3954 44'E 65 27'S 361
b40132 19'E 65 35'S 362
b42126 37'W 72 57'S 361
b45109 29'W 74 44'S 361
b46108 35'W 72 38'S 361
b47133 46'W 73 47'S 361
b50137 40'W 74 0'S 361
c15143 21'E 65 59'S 361
c18b99 27'E 64 22'S 362
c21b95 55'E 65 0'S 362
c2496 1'E 64 54'S 362
c29143 0'E 65 58'S 362
c3096 21'E 64 45'S 362
c3196 32'E 64 42'S 362
c32132 48'E 66 3'S 360
c33129 2'E 65 10'S 362
c35148 3'E 68 13'S 362
c36147 55'E 68 4'S 362
d15a81 48'E 66 34'S 361
d15b81 30'E 66 54'S 362
d20a36 16'E 68 38'S 362
d21b34 36'W 61 32'S 360
d2374 39'E 69 25'S 362
d2629 28'E 69 26'S 362
d2778 36'E 67 45'S 362
d2854 18'E 65 18'S 361
uk324148 53'E 66 32'S 350

*** 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)