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

* Last revised: 12:37:17 12/10/20

**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****)
a23a41 38'W 75 48'S 343
a6351 36'W 71 58'S 343
a6461 0'W 69 45'S 343
a68a39 39'W 55 0'S 343
a68c27 47'W 52 51'S 340
a69a60 38'W 68 26'S 343
a69b61 18'W 67 54'S 343
b09b142 50'E 66 9'S 343
b09g41 42'E 67 58'S 343
b09i39 48'W 70 56'S 343
b15ab51 2'E 66 2'S 343
b22a109 31'W 73 59'S 343
b28108 51'W 74 42'S 343
b29108 54'W 74 31'S 343
b37110 54'W 72 47'S 343
b38155 23'W 77 4'S 343
b3955 34'E 65 38'S 343
b40132 19'E 65 35'S 343
b41179 45'E 68 56'S 343
b42126 36'W 72 56'S 343
b45109 29'W 74 44'S 343
b46107 58'W 72 56'S 343
b47134 3'W 73 35'S 343
b50133 58'W 73 38'S 343
c15143 21'E 65 59'S 343
c18b99 48'E 64 43'S 343
c21b95 55'E 65 0'S 343
c2495 50'E 65 0'S 343
c29143 8'E 66 15'S 343
c3096 20'E 64 47'S 343
c3196 32'E 64 42'S 343
c32132 48'E 66 3'S 343
c33129 44'E 65 24'S 343
c3484 3'E 65 50'S 271
c35148 3'E 68 13'S 343
c36147 55'E 68 4'S 343
d15a81 48'E 66 34'S 343
d15b81 47'E 66 43'S 343
d20a36 16'E 68 38'S 343
d21b38 37'W 62 25'S 341
d2374 39'E 69 25'S 343
d2629 29'E 69 26'S 343
d2778 55'E 67 39'S 343
d2855 4'E 65 26'S 343
uk324148 53'E 66 32'S 343

*** 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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