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

* Last revised: 18:57:11 12/01/20

**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 46'W 75 49'S 334
a6349 43'W 72 5'S 334
a6461 0'W 69 45'S 334
a68a41 36'W 55 23'S 334
a68c31 9'W 52 25'S 311
a69a60 23'W 68 32'S 334
a69b60 59'W 68 18'S 334
b09b142 50'E 66 9'S 334
b09g41 42'E 67 58'S 334
b09i38 36'W 70 55'S 334
b15ab51 2'E 66 2'S 334
b22a109 31'W 73 59'S 334
b28108 51'W 74 42'S 334
b29108 54'W 74 31'S 334
b37110 54'W 72 47'S 323
b38155 23'W 77 4'S 334
b3955 50'E 65 38'S 334
b40132 13'E 65 38'S 334
b41179 49'W 69 6'S 334
b42126 38'W 72 54'S 329
b45109 29'W 74 44'S 334
b46107 32'W 73 11'S 334
b47133 54'W 73 48'S 334
b50133 28'W 73 41'S 334
c15143 21'E 65 59'S 334
c18b100 5'E 64 58'S 334
c21b95 55'E 65 0'S 334
c2496 2'E 64 54'S 334
c29142 54'E 66 7'S 334
c3096 20'E 64 47'S 334
c3196 32'E 64 42'S 334
c32132 48'E 66 3'S 334
c33129 39'E 65 22'S 334
c3484 3'E 65 50'S 271
c35148 3'E 68 13'S 334
c36147 55'E 68 4'S 334
d15a81 48'E 66 34'S 334
d15b81 47'E 66 43'S 334
d20a36 16'E 68 38'S 334
d21b38 32'W 62 53'S 327
d2374 39'E 69 25'S 334
d2629 29'E 69 26'S 334
d2778 54'E 67 37'S 334
d2855 4'E 65 26'S 334
uk324148 53'E 66 32'S 334

*** 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)