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

* Last revised: 12:29:43 02/08/21

**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 0'W 75 45'S 037
a6355 9'W 71 33'S 037
a6460 38'W 69 23'S 037
a68a35 6'W 57 22'S 034
a68e37 42'W 52 19'S 037
a68g35 17'W 56 48'S 033
a68h35 35'W 55 53'S 037
a68i35 8'W 55 44'S 037
a68j35 50'W 56 54'S 031
a68k35 38'W 56 56'S 031
a68l35 49'W 57 20'S 032
a68m35 3'W 56 45'S 033
a69a61 6'W 67 56'S 037
a69b61 5'W 67 31'S 037
a7059 36'W 72 31'S 037
a7159 34'W 72 37'S 037
a7260 41'W 69 35'S 037
a7360 22'W 69 38'S 037
b09b143 22'E 66 14'S 037
b09g41 47'E 68 0'S 037
b09i42 11'W 70 33'S 037
b15ab51 0'E 66 0'S 037
b22a109 31'W 73 56'S 037
b28108 46'W 74 40'S 037
b29108 54'W 74 31'S 037
b37111 39'W 72 42'S 037
b38155 19'W 77 4'S 037
b3950 8'E 65 57'S 035
b40132 13'E 65 37'S 037
b42126 32'W 72 48'S 037
b45109 24'W 74 43'S 037
b46110 48'W 72 37'S 037
b47133 49'W 73 46'S 037
b50140 48'W 73 58'S 037
c15143 13'E 66 0'S 037
c18b98 8'E 64 29'S 036
c21b95 52'E 65 1'S 038
c2496 1'E 64 50'S 037
c29143 11'E 66 7'S 037
c3096 18'E 64 46'S 037
c3196 32'E 64 38'S 037
c32132 48'E 66 3'S 037
c33127 17'E 65 18'S 032
c35147 43'E 68 6'S 037
c36147 35'E 67 55'S 037
d15a81 56'E 66 39'S 037
d15b81 34'E 66 57'S 037
d20a36 18'E 68 39'S 037
d21b33 4'W 60 38'S 032
d2374 39'E 69 25'S 037
d2629 26'E 69 24'S 037
d2778 22'E 67 43'S 037
d2851 23'E 65 34'S 037
uk324148 50'E 66 39'S 021

*** 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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