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

* Last revised: 15:31:21 04/13/21

**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 50'W 75 41'S 102
a6356 59'W 69 22'S 102
a6460 44'W 68 19'S 102
a68a33 49'W 52 59'S 102
a69a60 58'W 67 42'S 102
a69b60 54'W 67 23'S 102
a7060 11'W 70 14'S 102
a7160 28'W 70 22'S 102
a7426 5'W 75 14'S 102
a7560 15'W 73 31'S 102
b09b143 30'E 66 15'S 102
b09g41 51'E 68 12'S 102
b09i44 51'W 69 7'S 102
b15ab51 5'E 66 2'S 102
b22a109 25'W 73 54'S 102
b28108 46'W 74 40'S 102
b29108 54'W 74 31'S 102
b37112 1'W 72 35'S 102
b38155 4'W 77 1'S 102
b3940 35'E 68 1'S 102
b40132 14'E 65 39'S 102
b42132 32'W 73 21'S 102
b45109 21'W 74 42'S 102
b46112 33'W 72 27'S 102
b47133 52'W 73 46'S 102
b50145 20'W 74 0'S 102
c15143 17'E 65 58'S 102
c18b90 18'E 66 25'S 102
c21b95 50'E 65 2'S 102
c2496 1'E 64 50'S 102
c29142 53'E 66 4'S 102
c3096 18'E 64 46'S 102
c3196 32'E 64 40'S 102
c32132 48'E 66 3'S 102
c33126 39'E 65 26'S 102
c35148 10'E 67 40'S 102
c36147 26'E 67 55'S 102
d15a81 56'E 66 40'S 102
d15b81 34'E 66 57'S 102
d20a36 15'E 68 39'S 102
d21b27 54'W 59 0'S 102
d2374 39'E 69 25'S 102
d2629 24'E 69 21'S 102
d2772 42'E 67 45'S 102
d2841 42'E 67 34'S 102
uk324148 57'E 66 34'S 102

*** 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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