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

* Last revised: 13:09:42 08/07/20

**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 42'W 75 41'S 216
a6345 4'W 74 33'S 216
a6461 4'W 69 44'S 216
a68a50 10'W 59 12'S 216
a68b56 55'W 59 57'S 214
a68c38 24'W 57 29'S 217
a69a60 44'W 68 49'S 218
a69b60 31'W 68 43'S 218
b09b143 7'E 66 6'S 216
b09g41 37'E 67 58'S 216
b09i3 45'E 70 8'S 216
b15ab51 2'E 66 1'S 216
b22a109 18'W 73 58'S 216
b28108 48'W 74 48'S 216
b29108 41'W 74 40'S 216
b37111 32'W 72 43'S 218
b38155 25'W 77 4'S 216
b3960 52'E 66 46'S 216
b40132 14'E 65 39'S 216
b41168 0'W 74 2'S 216
b42126 29'W 72 56'S 216
b43167 26'E 67 58'S 216
b45109 29'W 74 44'S 218
b46106 13'W 74 27'S 218
b47133 57'W 73 46'S 218
b49105 16'W 74 27'S 218
b50131 27'W 73 48'S 218
c15143 21'E 65 59'S 218
c18b101 37'E 64 47'S 218
c21b95 55'E 65 0'S 218
c2495 56'E 64 56'S 218
c29142 54'E 66 5'S 218
c3096 5'E 64 55'S 218
c3196 32'E 64 42'S 218
c32132 45'E 66 5'S 218
c33129 44'E 65 23'S 218
c3492 35'E 65 3'S 218
c35148 14'E 68 10'S 218
c36147 55'E 68 4'S 218
d15a81 49'E 66 36'S 218
d15b81 34'E 66 59'S 218
d20a36 16'E 68 38'S 218
d21b43 13'W 66 52'S 218
d2374 39'E 69 25'S 218
d2629 29'E 69 26'S 218
d2779 31'E 67 34'S 218
d2859 11'E 66 26'S 218
uk324148 56'E 66 33'S 218

*** 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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