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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 10:28:19 11/21/16

**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 12'W 75 56'S 325
a57a58 2'W 66 41'S 325
a57b59 51'W 68 11'S 325
a6134 48'W 63 43'S 325
a6345 41'W 76 27'S 325
a6460 17'W 69 27'S 325
a6625 31'W 51 57'S 325
b09b142 31'E 66 36'S 325
b09d43 45'W 64 59'S 325
b09f44 55'W 68 28'S 325
b09g41 48'E 68 2'S 325
b09h37 5'E 69 7'S 325
b09i135 38'E 65 8'S 325
b15aa22 22'E 70 6'S 325
b15ab51 25'E 66 1'S 325
b15k32 2'W 47 58'S 325
b15t47 26'W 69 51'S 325
b15z47 18'W 70 6'S 325
b1637 32'W 75 41'S 325
b22a109 31'W 73 53'S 325
b28108 55'W 74 44'S 325
b29109 23'W 74 19'S 325
b30152 19'W 73 52'S 325
b31113 4'W 70 52'S 325
b34178 22'E 67 33'S 325
b35109 19'W 72 18'S 325
b37108 1'W 74 18'S 325
b38155 19'W 77 5'S 325
b39135 43'E 65 8'S 325
b40132 59'E 65 36'S 325
b41107 19'W 73 50'S 325
c15143 7'E 66 23'S 325
c18b114 14'E 65 24'S 325
c21b95 46'E 65 1'S 325
c2495 45'E 65 12'S 325
c28b45 13'W 68 42'S 325
c29143 4'E 66 6'S 325
c3096 34'E 64 39'S 325
c3196 28'E 64 40'S 325
c32162 32'E 70 1'S 325
c33169 52'E 73 29'S 325
d15a82 3'E 66 36'S 325
d15b82 3'E 67 9'S 325
d20a36 18'E 68 52'S 325
d20b35 51'E 68 32'S 325
d21a38 57'W 68 24'S 325
d21b81 42'E 65 58'S 325
d2286 52'E 65 55'S 325
d2374 39'E 69 28'S 325
d2629 12'E 69 26'S 325
uk23513 2'E 69 45'S 325
uk324149 12'E 66 10'S 325
uk32515 34'E 69 46'S 325
uk32613 2'E 69 49'S 325

*** 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)