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

* Last revised: 21:24:21 07/06/20

**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****)
a23a40 55'W 75 48'S 180
a6346 35'W 76 3'S 180
a6461 4'W 69 44'S 180
a68a49 26'W 59 32'S 178
a68b57 15'W 61 33'S 180
a68c45 59'W 58 39'S 179
a6960 48'W 68 59'S 187
b09b143 11'E 66 8'S 180
b09g41 37'E 67 58'S 180
b09i3 45'E 70 8'S 180
b15ab51 1'E 66 2'S 180
b22a109 18'W 73 58'S 180
b28108 48'W 74 48'S 180
b29108 41'W 74 40'S 180
b37111 32'W 72 43'S 174
b38155 22'W 77 4'S 180
b3968 41'E 66 53'S 180
b40132 14'E 65 39'S 180
b41163 54'W 75 0'S 180
b42126 25'W 72 57'S 180
b43170 14'E 68 35'S 180
b45109 29'W 74 44'S 180
b46106 15'W 74 25'S 180
b47133 50'W 73 47'S 176
b49105 15'W 74 23'S 180
b50130 32'W 73 50'S 180
c15143 21'E 65 59'S 180
c18b111 6'E 65 19'S 180
c21b95 55'E 65 0'S 180
c2496 6'E 64 54'S 180
c29142 54'E 66 5'S 180
c3096 10'E 64 54'S 180
c3196 41'E 64 42'S 180
c32132 45'E 66 5'S 180
c33130 10'E 65 29'S 179
c3498 43'E 64 24'S 180
c35148 14'E 68 10'S 180
c36148 5'E 68 6'S 180
d15a81 49'E 66 36'S 180
d15b81 34'E 66 59'S 180
d20a36 16'E 68 38'S 180
d21b44 17'W 68 44'S 180
d2374 39'E 69 25'S 180
d2629 29'E 69 26'S 180
d2779 30'E 67 33'S 180
d2862 11'E 66 34'S 180
uk324148 52'E 66 35'S 162

*** 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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