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

* Last revised: 22:57:26 01/13/21

**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 44'W 75 47'S 012
a6354 40'W 71 32'S 012
a6460 52'W 69 36'S 012
a68a36 10'W 56 33'S 012
a68d36 43'W 55 14'S 012
a68e34 4'W 54 36'S 010
a68f34 11'W 56 47'S 364
a69a60 58'W 68 7'S 012
a69b61 3'W 67 43'S 010
b09b143 14'E 66 14'S 012
b09g41 42'E 67 58'S 012
b09i39 51'W 70 46'S 012
b15ab51 3'E 66 1'S 012
b22a109 31'W 73 56'S 012
b28108 51'W 74 42'S 012
b29108 54'W 74 31'S 012
b37111 30'W 72 42'S 012
b38155 18'W 77 3'S 012
b3953 36'E 65 4'S 010
b40132 13'E 65 33'S 012
b42126 35'W 72 50'S 012
b45109 29'W 74 44'S 012
b46109 53'W 72 36'S 012
b47133 46'W 73 47'S 012
b50137 59'W 73 40'S 012
c15143 12'E 65 58'S 012
c18b98 44'E 64 26'S 010
c21b95 53'E 64 57'S 012
c2496 3'E 64 52'S 012
c29143 8'E 66 9'S 011
c3096 23'E 64 43'S 011
c3196 28'E 64 41'S 012
c32132 48'E 66 3'S 012
c33128 42'E 65 7'S 012
c35147 55'E 68 6'S 012
c36147 38'E 68 1'S 012
d15a81 56'E 66 39'S 012
d15b81 30'E 66 54'S 012
d20a36 16'E 68 38'S 012
d21b33 35'W 61 15'S 012
d2374 39'E 69 25'S 012
d2629 28'E 69 26'S 012
d2778 49'E 67 35'S 012
d2853 49'E 65 22'S 012
uk324148 50'E 66 39'S 012

*** 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)