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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 09:02:08 11/30/16

**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 16'W 75 56'S 334
a57a58 19'W 66 30'S 334
a57b60 10'W 68 18'S 334
a6134 43'W 63 37'S 334
a6345 50'W 76 26'S 334
a6460 25'W 69 24'S 334
a6628 29'W 54 43'S 334
b09b142 36'E 66 36'S 334
b09d43 57'W 64 53'S 334
b09f45 34'W 68 21'S 334
b09g41 45'E 68 2'S 334
b09h36 24'E 68 53'S 334
b09i135 41'E 65 7'S 334
b15aa21 17'E 69 43'S 334
b15ab51 21'E 65 58'S 334
b15k32 1'W 47 58'S 334
b15t47 49'W 69 46'S 334
b15z47 24'W 70 5'S 334
b1637 11'W 75 48'S 334
b22a109 35'W 73 53'S 334
b28108 59'W 74 45'S 334
b29109 7'W 74 20'S 334
b30152 29'W 73 47'S 334
b31112 57'W 70 48'S 334
b34177 57'E 67 29'S 334
b35109 24'W 72 13'S 334
b37107 46'W 74 19'S 334
b38155 18'W 77 6'S 334
b39135 47'E 65 8'S 334
b40132 35'E 65 41'S 334
b41107 57'W 73 26'S 334
c15143 16'E 66 23'S 334
c18b114 6'E 65 25'S 334
c21b95 57'E 64 57'S 334
c2495 35'E 65 18'S 334
c28b45 59'W 68 37'S 334
c29143 5'E 66 7'S 334
c3096 24'E 64 41'S 334
c3196 34'E 64 41'S 334
c32162 26'E 70 3'S 334
c33169 51'E 73 29'S 334
d15a82 5'E 66 27'S 334
d15b82 1'E 67 9'S 334
d20a36 14'E 68 54'S 334
d20b35 45'E 68 32'S 334
d21a39 46'W 68 23'S 334
d21b81 36'E 65 57'S 334
d2286 51'E 65 56'S 334
d2374 38'E 69 29'S 334
d2629 16'E 69 28'S 334
uk23513 5'E 69 50'S 334
uk324149 40'E 66 7'S 334
uk32515 32'E 69 47'S 334
uk32613 4'E 69 51'S 334

*** 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)