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

* Last revised: 13:07:44 05/07/21

**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 1'W 75 41'S 124
a6357 25'W 68 12'S 124
a6461 7'W 67 52'S 124
a69a61 7'W 67 36'S 124
a69b60 40'W 67 17'S 124
a7060 31'W 69 29'S 124
a7160 41'W 70 12'S 117
a7426 1'W 75 13'S 124
a7560 1'W 72 7'S 124
b09b143 30'E 66 15'S 124
b09g41 51'E 68 12'S 124
b09i45 28'W 67 50'S 124
b15ab51 5'E 66 2'S 124
b22a109 25'W 73 54'S 124
b28108 46'W 74 40'S 124
b29108 54'W 74 31'S 124
b37112 16'W 72 31'S 124
b38155 11'W 77 2'S 124
b3933 23'E 68 22'S 124
b40132 11'E 65 37'S 124
b42134 22'W 73 37'S 124
b45109 21'W 74 42'S 124
b46113 10'W 72 18'S 124
b47133 52'W 73 46'S 124
b50145 43'W 74 23'S 124
c15143 17'E 65 58'S 124
c18b89 33'E 66 33'S 124
c21b95 50'E 65 2'S 124
c2496 1'E 64 50'S 124
c29142 52'E 66 4'S 124
c3096 18'E 64 46'S 124
c3196 32'E 64 40'S 124
c32132 48'E 66 3'S 124
c33126 47'E 65 25'S 124
c35148 0'E 67 33'S 124
c36147 26'E 67 55'S 124
d15a81 56'E 66 40'S 124
d15b81 34'E 66 57'S 124
d20a36 10'E 68 26'S 124
d21b27 12'W 58 45'S 107
d2374 39'E 69 25'S 124
d2629 24'E 69 21'S 124
d2764 32'E 66 46'S 124
d2835 40'E 68 6'S 124
uk324148 57'E 66 34'S 124

*** 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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