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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 09:06:49 05/16/17

**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 56'W 75 51'S 131
a57a59 17'W 65 27'S 131
a57b59 28'W 68 3'S 131
a6131 32'W 62 37'S 131
a6346 25'W 76 18'S 131
a6461 17'W 69 42'S 131
b09b142 38'E 66 37'S 131
b09d39 8'W 62 58'S 131
b09f52 7'W 65 2'S 131
b09g41 46'E 68 2'S 131
b09h45 56'E 64 1'S 131
b09i135 23'E 65 4'S 131
b15aa16 5'E 72 31'S 131
b15ab51 16'E 65 58'S 131
b15t52 14'W 65 34'S 131
b15z52 27'W 65 29'S 131
b1635 5'W 73 37'S 131
b22a108 52'W 74 8'S 131
b28108 39'W 74 50'S 131
b29109 4'W 74 38'S 131
b30158 22'W 73 45'S 131
b31115 59'W 70 39'S 131
b35112 41'W 71 25'S 131
b37108 36'W 74 23'S 131
b38155 16'W 77 4'S 131
b39134 35'E 65 7'S 131
b40132 25'E 65 39'S 131
b41116 4'W 72 35'S 131
c15143 8'E 66 13'S 131
c18b114 1'E 65 27'S 131
c21b95 58'E 64 52'S 131
c2496 6'E 64 53'S 131
c28b52 23'W 64 46'S 131
c29143 4'E 66 2'S 131
c3096 15'E 64 45'S 131
c3195 59'E 64 52'S 131
c32160 27'E 69 18'S 131
c33162 12'E 69 41'S 131
d15a81 36'E 66 35'S 131
d15b81 57'E 67 12'S 131
d20a36 14'E 68 56'S 131
d20b35 46'E 68 28'S 131
d21a46 53'W 65 20'S 131
d21b75 19'E 65 25'S 131
d2286 58'E 65 55'S 131
d2374 43'E 69 28'S 131
d2629 41'E 69 20'S 131
uk23513 17'E 69 48'S 131
uk324149 44'E 66 46'S 131
uk32516 22'E 69 51'S 131
uk32613 12'E 69 51'S 131

*** 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)