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

* Last revised: 14:42:00 11/02/20

**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 0'W 75 36'S 305
a6347 54'W 72 37'S 305
a6461 0'W 69 45'S 305
a68a43 49'W 56 30'S 305
a68c32 7'W 53 25'S 299
a69a60 21'W 68 54'S 305
a69b60 11'W 68 45'S 305
b09b143 1'E 66 9'S 305
b09g41 42'E 67 58'S 305
b09i37 16'W 71 42'S 305
b15ab51 10'E 66 3'S 305
b22a109 31'W 73 59'S 305
b28108 49'W 74 48'S 305
b29108 58'W 74 34'S 305
b37110 54'W 72 47'S 305
b38155 24'W 77 3'S 305
b3957 4'E 65 50'S 305
b40132 12'E 65 40'S 305
b41177 48'W 72 7'S 271
b42126 37'W 72 52'S 305
b45109 29'W 74 44'S 305
b46107 4'W 73 47'S 305
b47133 54'W 73 48'S 305
b50133 4'W 73 41'S 305
c15143 21'E 65 59'S 305
c18b100 31'E 64 39'S 305
c21b95 55'E 65 0'S 305
c2496 6'E 64 54'S 305
c29142 54'E 66 7'S 305
c3096 20'E 64 47'S 305
c3196 32'E 64 42'S 305
c32132 45'E 66 4'S 271
c33129 39'E 65 22'S 305
c3484 3'E 65 50'S 271
c35148 6'E 68 12'S 305
c36147 55'E 68 4'S 305
d15a81 48'E 66 34'S 305
d15b81 47'E 66 43'S 305
d20a36 16'E 68 38'S 305
d21b41 37'W 64 16'S 305
d2374 39'E 69 25'S 305
d2629 29'E 69 26'S 305
d2779 31'E 67 34'S 305
d2856 1'E 65 35'S 305
uk324149 5'E 66 31'S 271

*** 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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