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

* Last revised: 15:59:38 09/16/21

**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 19'W 75 28'S 255
a6354 33'W 64 11'S 255
a6460 59'W 67 28'S 255
a69a60 27'W 67 13'S 255
a69b59 45'W 66 56'S 255
a7060 37'W 67 45'S 255
a7429 29'W 75 52'S 255
a76a59 13'W 73 57'S 255
a76b60 9'W 73 57'S 255
a76c58 35'W 72 38'S 255
a7717 53'W 72 2'S 255
a784 24'W 70 16'S 255
b09b143 28'E 66 16'S 255
b09g41 47'E 68 12'S 255
b09i38 46'W 62 16'S 255
b15ab50 49'E 65 52'S 255
b22a109 32'W 73 52'S 255
b28108 46'W 74 40'S 255
b29108 54'W 74 29'S 255
b37113 16'W 72 19'S 255
b38155 21'W 77 2'S 255
b3914 2'W 71 15'S 255
b40132 8'E 65 38'S 255
b42145 6'W 74 6'S 255
b45109 20'W 74 40'S 255
b46126 16'W 71 56'S 255
b47134 7'W 73 50'S 255
b50164 52'W 73 4'S 255
c15143 13'E 65 58'S 255
c18b89 33'E 66 33'S 255
c21b95 49'E 64 58'S 255
c2496 1'E 64 50'S 255
c29142 49'E 66 4'S 255
c3096 18'E 64 46'S 255
c3196 32'E 64 40'S 255
c32132 48'E 66 3'S 255
c33126 40'E 65 27'S 255
c35147 59'E 67 18'S 255
c36147 28'E 67 56'S 255
d15a81 54'E 66 38'S 255
d15b81 34'E 66 57'S 255
d20a35 52'E 68 19'S 255
d2374 39'E 69 25'S 255
d2629 24'E 69 21'S 255
d2743 27'E 67 24'S 255
d286 41'W 70 4'S 255
d29a5 28'W 69 48'S 255
d29b1 28'E 69 47'S 255
d29c6 34'W 70 17'S 255
d30a13 41'W 71 7'S 255
d30b7 22'W 70 27'S 255
uk324148 55'E 66 34'S 255

*** 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)