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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 13:44:59 02/20/15

**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 39'W 75 44'S 049
a5655 54'W 68 49'S 049
a5749 18'W 77 13'S 049
a6116 35'W 72 22'S 049
a6344 49'W 76 23'S 049
a6460 58'W 69 45'S 049
b09b142 41'E 66 39'S 049
b09c54 13'E 65 39'S 049
b09d29 41'E 69 2'S 049
b09f39 36'E 68 10'S 049
b09g45 57'E 67 1'S 049
b15aa51 35'E 65 48'S 049
b15ab51 16'E 65 57'S 049
b15k59 51'W 66 56'S 049
b15r50 18'W 68 42'S 049
b15t32 15'E 68 25'S 049
b15x56 57'W 66 4'S 049
b15y56 31'W 64 1'S 029
b15z45 19'E 67 2'S 049
b1624 24'E 69 34'S 049
b17a36 31'W 55 8'S 049
b22a108 54'W 74 6'S 049
b28108 58'W 74 45'S 049
b29109 3'W 74 39'S 049
b30130 15'W 73 56'S 049
b31111 5'W 72 43'S 049
b32145 51'W 75 10'S 049
c15143 28'E 66 21'S 049
c18b114 2'E 65 30'S 049
c21b95 55'E 64 55'S 049
c2496 2'E 64 48'S 049
c28a2124 7'E 66 5'S 049
c28b42 36'E 66 37'S 049
d1581 57'E 66 48'S 049
d20b36 15'E 68 59'S 049
d2036 33'E 69 8'S 049
d21a47 47'E 65 43'S 049
d21b85 19'E 66 6'S 049
d2286 54'E 65 58'S 049
uk09380 48'E 66 42'S 049
uk316138 30'E 65 24'S 043
uk32257 15'W 67 14'S 047

*** 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