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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 11:39:15 08/20/15

**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 20'W 75 38'S 228
a5653 58'W 60 47'S 228
a5757 16'W 74 15'S 228
a6116 26'W 72 23'S 228
a6345 15'W 76 23'S 228
a6461 5'W 69 25'S 228
b09b142 20'E 66 33'S 228
b09d16 47'W 72 11'S 228
b09f26 39'W 74 7'S 228
b09g44 10'E 67 24'S 228
b09h15 42'E 69 16'S 228
b15aa51 38'E 65 50'S 228
b15ab51 11'E 65 57'S 228
b15k59 3'W 65 44'S 228
b15r36 50'W 62 20'S 228
b15t26 4'W 74 26'S 228
b15x53 50'W 61 38'S 228
b15y56 27'W 63 3'S 228
b15z6 47'W 70 3'S 228
b1626 51'W 74 22'S 228
b22a108 34'W 74 2'S 228
b28108 31'W 74 29'S 228
b29109 3'W 74 18'S 228
b30131 31'W 74 3'S 228
b31112 4'W 71 34'S 228
b34146 3'W 74 28'S 228
b35104 31'W 74 32'S 228
c15143 7'E 66 8'S 228
c18b114 11'E 65 22'S 228
c21b95 44'E 64 55'S 228
c2496 16'E 64 45'S 228
c28b20 17'W 72 53'S 228
d1581 19'E 66 33'S 228
d20a36 19'E 69 8'S 228
d20b36 34'E 68 59'S 228
d21a26 38'E 69 58'S 228
d21b81 47'E 66 1'S 228
d2286 55'E 65 57'S 228
uk324162 47'E 68 26'S 228

*** 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