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

* Last revised: 17:49:08 04/02/21

**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 090
a6356 53'W 69 29'S 090
a6460 46'W 68 21'S 090
a68a34 3'W 54 38'S 086
a69a61 7'W 67 41'S 090
a69b61 0'W 67 20'S 090
a7059 53'W 70 24'S 090
a7160 8'W 70 32'S 090
a7425 46'W 75 12'S 090
a7560 23'W 73 59'S 090
b09b143 30'E 66 15'S 090
b09g41 51'E 68 12'S 090
b09i44 36'W 69 24'S 090
b15ab51 5'E 66 2'S 090
b22a109 25'W 73 54'S 090
b28108 46'W 74 40'S 090
b29108 54'W 74 31'S 090
b37111 56'W 72 35'S 090
b38155 4'W 77 1'S 090
b3941 32'E 67 33'S 089
b40132 14'E 65 39'S 090
b42130 56'W 73 31'S 090
b45109 21'W 74 42'S 090
b46112 27'W 72 27'S 090
b47133 52'W 73 46'S 090
b50145 58'W 74 6'S 090
c15143 17'E 65 58'S 090
c18b93 56'E 65 52'S 090
c21b95 50'E 65 2'S 090
c2496 1'E 64 50'S 090
c29142 54'E 66 6'S 090
c3096 18'E 64 46'S 090
c3196 32'E 64 40'S 090
c32132 48'E 66 3'S 090
c33126 39'E 65 26'S 090
c35148 19'E 67 41'S 090
c36147 26'E 67 55'S 090
d15a81 56'E 66 40'S 090
d15b81 34'E 66 57'S 090
d20a36 15'E 68 39'S 090
d21b29 0'W 59 17'S 088
d2374 39'E 69 25'S 090
d2629 24'E 69 21'S 090
d2774 55'E 68 2'S 090
d2843 36'E 67 16'S 090
uk324148 57'E 66 34'S 090

*** 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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