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

* Last revised: 16:10:35 03/12/21

**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****)
a23a39 59'W 75 43'S 069
a6356 24'W 70 19'S 069
a6460 37'W 68 54'S 069
a68a33 9'W 56 20'S 063
a68g36 21'W 55 59'S 058
a68h36 36'W 53 29'S 067
a68j34 31'W 55 33'S 058
a68m35 7'W 56 42'S 058
a69a61 1'W 67 45'S 069
a69b60 57'W 67 18'S 069
a7059 51'W 71 13'S 069
a7160 8'W 71 24'S 069
a7360 6'W 68 45'S 069
a7425 41'W 75 12'S 068
b09b143 26'E 66 17'S 069
b09g41 47'E 68 6'S 069
b09i43 16'W 69 49'S 069
b15ab51 2'E 66 0'S 069
b22a109 25'W 73 56'S 069
b28108 46'W 74 40'S 069
b29108 54'W 74 31'S 069
b37111 52'W 72 36'S 069
b38155 20'W 77 5'S 069
b3944 48'E 67 10'S 069
b40132 14'E 65 39'S 069
b42126 37'W 72 44'S 069
b45109 21'W 74 42'S 069
b46112 6'W 72 31'S 069
b47133 49'W 73 46'S 069
b50143 57'W 74 14'S 069
c15143 14'E 65 59'S 069
c18b93 46'E 64 59'S 069
c21b95 50'E 65 2'S 069
c2496 1'E 64 50'S 069
c29143 0'E 66 4'S 069
c3096 18'E 64 46'S 069
c3196 32'E 64 40'S 069
c32132 48'E 66 3'S 069
c33126 42'E 65 26'S 069
c35147 53'E 67 57'S 069
c36147 26'E 67 55'S 069
d15a81 56'E 66 39'S 069
d15b81 34'E 66 57'S 069
d20a36 18'E 68 39'S 069
d21b30 45'W 60 29'S 058
d2374 39'E 69 25'S 069
d2629 28'E 69 22'S 069
d2775 31'E 68 21'S 069
d2846 38'E 66 28'S 069
uk324148 57'E 66 34'S 069

*** 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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