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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 17:02:16 04/06/17

**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****)
a23a40 55'W 75 48'S 095
a57a59 22'W 65 33'S 095
a57b59 54'W 68 10'S 095
a6130 54'W 63 15'S 095
a6346 10'W 76 18'S 095
a6461 17'W 69 42'S 095
b09b142 17'E 66 33'S 095
b09d41 51'W 63 40'S 095
b09f50 57'W 67 8'S 095
b09g41 45'E 68 0'S 095
b09h45 34'E 66 26'S 095
b09i135 22'E 65 0'S 095
b15aa9 14'E 70 1'S 095
b15ab51 16'E 65 58'S 095
b15t52 20'W 67 37'S 095
b15z51 43'W 67 28'S 095
b1632 24'W 74 31'S 095
b22a108 52'W 74 8'S 095
b28108 39'W 74 50'S 095
b29109 4'W 74 38'S 095
b30155 51'W 73 29'S 095
b31115 59'W 70 32'S 095
b35112 21'W 71 12'S 095
b37108 36'W 74 23'S 095
b38155 16'W 77 4'S 095
b39134 43'E 65 3'S 095
b40132 25'E 65 39'S 095
b41110 39'W 71 25'S 095
c15143 24'E 66 17'S 095
c18b114 1'E 65 26'S 095
c21b96 3'E 64 51'S 095
c2496 6'E 64 53'S 095
c28b50 50'W 67 9'S 095
c29143 6'E 66 9'S 095
c3096 15'E 64 45'S 095
c3195 59'E 64 52'S 095
c32162 14'E 70 16'S 095
c33161 55'E 69 40'S 095
d15a81 36'E 66 35'S 095
d15b81 57'E 67 12'S 095
d20a36 14'E 68 56'S 095
d20b35 46'E 68 28'S 095
d21a46 33'W 65 53'S 095
d21b76 58'E 66 38'S 095
d2287 11'E 65 53'S 095
d2374 43'E 69 28'S 095
d2629 41'E 69 20'S 095
uk23513 17'E 69 48'S 095
uk324149 35'E 66 44'S 095
uk32516 22'E 69 51'S 095
uk32613 12'E 69 51'S 095

*** 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)