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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 11:23:46 07/06/15

**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 47'W 75 44'S 180
a5653 46'W 63 25'S 180
a5754 2'W 75 36'S 180
a6116 28'W 72 21'S 180
a6345 12'W 76 22'S 180
a6460 56'W 69 26'S 180
b09b142 24'E 66 41'S 180
b09d5 29'E 70 4'S 180
b09f12 54'W 71 3'S 180
b09g44 10'E 67 23'S 180
b09h15 23'E 69 17'S 180
b15aa51 42'E 65 45'S 180
b15ab51 11'E 65 56'S 180
b15k59 29'W 65 59'S 180
b15r47 17'W 63 49'S 180
b15t17 26'W 72 5'S 180
b15x53 33'W 61 44'S 180
b15y56 14'W 63 15'S 180
b15z11 41'E 69 34'S 180
b1615 0'W 71 19'S 180
b17a36 38'W 54 21'S 180
b22a108 31'W 74 8'S 180
b28108 37'W 74 29'S 180
b29109 6'W 74 21'S 180
b30131 37'W 74 4'S 180
b31111 47'W 72 31'S 180
b32158 56'W 74 0'S 180
b34140 2'W 74 36'S 180
c15143 1'E 66 13'S 180
c18b114 3'E 65 28'S 180
c21b95 38'E 64 58'S 180
c2496 5'E 64 46'S 180
c28b6 4'W 70 6'S 180
d1581 29'E 66 22'S 180
d20a36 48'E 69 7'S 180
d20b36 22'E 68 58'S 180
d21a27 12'E 69 44'S 180
d21b82 10'E 66 15'S 180
d2286 53'E 65 59'S 180
uk323132 4'E 65 33'S 180
uk324169 22'E 69 17'S 180

*** 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