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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 13:16:51 04/13/15

**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****)
a23a42 8'W 75 55'S 099
a5655 22'W 66 41'S 099
a5750 54'W 76 53'S 099
a6116 34'W 72 24'S 099
a6345 0'W 76 24'S 099
a6460 53'W 69 42'S 099
b09b142 43'E 66 37'S 099
b09c54 10'E 65 38'S 099
b09d29 42'E 69 3'S 099
b09f24 0'E 70 0'S 099
b09g44 16'E 67 27'S 099
b15aa51 37'E 65 49'S 099
b15ab51 19'E 65 54'S 099
b15k59 8'W 66 54'S 099
b15r49 50'W 66 6'S 099
b15t16 29'E 69 21'S 099
b15x55 55'W 64 56'S 099
b15y56 4'W 64 2'S 099
b15z41 52'E 67 40'S 099
b1612 54'E 69 25'S 099
b17a35 1'W 55 27'S 099
b22a108 49'W 74 6'S 099
b28108 58'W 74 45'S 099
b29109 3'W 74 39'S 099
b30131 38'W 74 2'S 099
b31111 1'W 72 44'S 099
b32150 29'W 74 32'S 099
b33104 22'W 74 59'S 099
b34131 17'W 73 50'S 099
c15143 9'E 66 15'S 099
c18b114 5'E 65 28'S 099
c21b95 55'E 64 55'S 099
c2496 2'E 64 48'S 099
c28a2124 12'E 66 8'S 099
c28b39 46'E 68 2'S 099
d1581 57'E 66 48'S 099
d20b36 15'E 68 59'S 099
d2036 33'E 69 8'S 099
d21a41 47'E 67 41'S 099
d21b83 58'E 66 29'S 099
d2286 51'E 65 58'S 099
uk09380 39'E 66 33'S 099
uk316139 59'E 65 54'S 099
uk32257 0'W 67 6'S 060

*** 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