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

* Last revised: 23:04:30 06/09/21

**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 4'W 75 40'S 157
a6357 8'W 66 53'S 157
a6461 12'W 67 42'S 157
a69a60 55'W 67 29'S 157
a69b60 30'W 67 10'S 157
a7060 41'W 68 29'S 157
a7160 17'W 68 53'S 157
a7426 25'W 75 14'S 157
a7559 59'W 70 52'S 157
a76a59 8'W 75 8'S 157
a76b57 22'W 74 57'S 157
a76c56 18'W 75 4'S 157
b09b143 25'E 66 16'S 157
b09g41 47'E 68 11'S 157
b09i45 12'W 66 5'S 157
b15ab50 59'E 66 4'S 157
b22a109 25'W 73 54'S 157
b28108 46'W 74 40'S 159
b29108 54'W 74 31'S 159
b37112 0'W 72 28'S 159
b38155 14'W 77 1'S 159
b3920 44'E 69 38'S 157
b40132 11'E 65 37'S 159
b42136 23'W 73 58'S 159
b45109 20'W 74 40'S 159
b46112 43'W 72 15'S 159
b47133 52'W 73 46'S 159
b50149 31'W 75 16'S 159
c15143 17'E 65 58'S 159
c18b89 33'E 66 33'S 159
c21b95 49'E 64 58'S 159
c2496 1'E 64 50'S 159
c29142 51'E 66 4'S 159
c3096 18'E 64 46'S 159
c3196 32'E 64 40'S 159
c32132 48'E 66 3'S 159
c33126 40'E 65 27'S 159
c35147 55'E 67 21'S 159
c36147 28'E 67 56'S 159
d15a81 54'E 66 38'S 159
d15b81 34'E 66 57'S 159
d20a36 11'E 68 26'S 159
d2374 39'E 69 25'S 159
d2629 19'E 69 24'S 159
d2756 17'E 65 41'S 159
d2821 48'E 69 48'S 159
uk324148 57'E 66 34'S 159

*** 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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