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

* Last revised: 12:31:11 03/15/21

**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****)
a23a39 59'W 75 43'S 072
a6356 50'W 69 59'S 072
a6460 40'W 68 22'S 072
a68a32 22'W 56 8'S 072
a68g36 0'W 55 28'S 071
a68h36 24'W 52 58'S 072
a68j36 0'W 53 43'S 072
a68m36 3'W 56 36'S 071
a69a61 12'W 67 44'S 072
a69b61 1'W 67 18'S 072
a7059 51'W 70 57'S 072
a7160 8'W 71 9'S 071
a7425 46'W 75 13'S 072
b09b143 26'E 66 17'S 072
b09g41 45'E 68 10'S 072
b09i43 23'W 69 48'S 072
b15ab51 5'E 66 1'S 072
b22a109 25'W 73 56'S 072
b28108 46'W 74 40'S 072
b29108 54'W 74 31'S 072
b37111 54'W 72 36'S 072
b38155 20'W 77 5'S 072
b3944 38'E 67 14'S 072
b40132 14'E 65 39'S 072
b42127 55'W 72 51'S 072
b45109 21'W 74 42'S 072
b46112 15'W 72 31'S 072
b47133 49'W 73 46'S 072
b50144 37'W 74 1'S 072
c15143 14'E 65 59'S 072
c18b93 51'E 64 58'S 072
c21b95 50'E 65 2'S 072
c2496 1'E 64 50'S 072
c29142 54'E 66 3'S 072
c3096 18'E 64 46'S 072
c3196 32'E 64 40'S 072
c32132 48'E 66 3'S 072
c33126 45'E 65 27'S 072
c35147 54'E 67 59'S 072
c36147 26'E 67 55'S 072
d15a81 56'E 66 39'S 072
d15b81 34'E 66 57'S 072
d20a36 15'E 68 39'S 072
d21b30 45'W 60 29'S 058
d2374 39'E 69 25'S 072
d2629 28'E 69 22'S 072
d2775 29'E 68 20'S 072
d2846 20'E 66 38'S 072
uk324148 57'E 66 34'S 072

*** 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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