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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 12:59:22 09/29/15

**Operational users please note: This list cannot possibly contain all potentially hazardous icebergs in Antarctic waters -- Scatterometers such as ASCAT 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 data. 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 29'W 75 38'S 271
a5653 42'W 60 4'S 271
a5757 22'W 72 7'S 271
a6116 35'W 72 25'S 271
a6345 20'W 76 22'S 271
a6461 5'W 69 25'S 271
b09b142 17'E 66 35'S 271
b09d26 0'W 73 52'S 271
b09f28 23'W 74 40'S 271
b09g44 15'E 67 24'S 271
b09h15 29'E 69 18'S 271
b15aa51 38'E 65 49'S 271
b15ab51 21'E 65 54'S 271
b15k58 21'W 65 22'S 271
b15r30 2'W 60 27'S 271
b15t27 24'W 74 40'S 271
b15x53 38'W 61 38'S 271
b15y56 27'W 63 3'S 271
b15z16 26'W 72 0'S 271
b1627 50'W 74 53'S 271
b22a108 34'W 74 2'S 271
b28108 36'W 74 37'S 271
b29109 12'W 74 20'S 271
b30131 34'W 73 58'S 271
b31106 21'W 71 4'S 271
b34150 39'W 75 35'S 271
b35104 41'W 74 28'S 271
b36104 15'W 74 41'S 271
c15143 7'E 66 8'S 271
c18b114 3'E 65 26'S 271
c21b95 48'E 64 57'S 271
c2496 46'E 64 41'S 271
c28b27 9'W 74 26'S 271
d1581 20'E 66 34'S 271
d20a36 16'E 69 6'S 271
d20b36 35'E 69 2'S 271
d21a6 56'E 69 55'S 271
d21b81 36'E 66 6'S 271
d2286 55'E 65 57'S 271
uk324158 51'E 67 37'S 271

*** 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