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

* Last revised: 10:17:09 12/15/20

**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 38'W 75 48'S 347
a6351 40'W 71 51'S 347
a6461 0'W 69 45'S 347
a68a38 51'W 55 4'S 346
a68c27 47'W 52 51'S 347
a69a60 21'W 68 22'S 347
a69b61 18'W 67 54'S 347
b09b142 52'E 66 13'S 347
b09g41 42'E 67 58'S 347
b09i39 55'W 70 42'S 347
b15ab51 2'E 66 2'S 347
b22a109 31'W 73 59'S 347
b28108 51'W 74 42'S 347
b29108 54'W 74 31'S 347
b37110 54'W 72 47'S 347
b38155 23'W 77 4'S 347
b3955 34'E 65 34'S 347
b40132 19'E 65 35'S 347
b41179 47'E 68 56'S 347
b42126 36'W 72 56'S 347
b45109 29'W 74 44'S 345
b46107 55'W 72 47'S 347
b47134 9'W 73 32'S 347
b50134 4'W 73 31'S 347
c15143 21'E 65 59'S 347
c18b99 48'E 64 43'S 347
c21b95 55'E 65 0'S 347
c2495 50'E 65 0'S 347
c29143 8'E 66 15'S 347
c3096 20'E 64 47'S 347
c3196 32'E 64 42'S 347
c32132 48'E 66 3'S 347
c33129 44'E 65 24'S 347
c3484 3'E 65 50'S 271
c35148 3'E 68 13'S 347
c36147 55'E 68 4'S 347
d15a81 48'E 66 34'S 347
d15b81 47'E 66 43'S 347
d20a36 16'E 68 38'S 347
d21b38 26'W 62 6'S 344
d2374 39'E 69 25'S 347
d2629 29'E 69 26'S 347
d2778 55'E 67 39'S 347
d2855 4'E 65 26'S 347
uk324148 53'E 66 32'S 347

*** 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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