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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 19:47:30 05/27/17

**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 145
a57a59 2'W 65 18'S 145
a57b59 28'W 68 3'S 145
a6129 7'W 61 37'S 145
a6346 25'W 76 18'S 145
a6461 17'W 69 42'S 145
b09b142 38'E 66 37'S 145
b09d36 32'W 62 9'S 145
b09f50 38'W 64 25'S 145
b09g41 43'E 68 0'S 145
b09h43 58'E 64 4'S 145
b09i135 37'E 64 59'S 145
b15aa15 55'E 72 31'S 145
b15ab51 16'E 65 58'S 145
b15t52 33'W 64 56'S 145
b15z51 53'W 64 52'S 145
b1636 48'W 73 29'S 145
b22a108 52'W 74 8'S 145
b28108 39'W 74 50'S 145
b29109 4'W 74 38'S 145
b30159 12'W 73 42'S 145
b31115 23'W 70 37'S 145
b35112 41'W 71 25'S 145
b37108 36'W 74 23'S 145
b38155 16'W 77 4'S 145
b39134 35'E 65 7'S 145
b40132 25'E 65 39'S 145
b41117 50'W 72 56'S 145
c15143 9'E 66 10'S 145
c18b114 6'E 65 25'S 145
c21b96 5'E 64 51'S 145
c2496 1'E 64 54'S 145
c28b51 10'W 64 13'S 145
c29143 4'E 66 11'S 145
c3096 15'E 64 45'S 145
c3195 59'E 64 50'S 145
c32160 25'E 69 16'S 145
c33162 13'E 69 38'S 145
d15a81 27'E 66 35'S 145
d15b81 57'E 67 12'S 145
d20a36 14'E 68 56'S 145
d20b35 46'E 68 28'S 145
d21a46 52'W 65 19'S 145
d21b75 19'E 66 2'S 145
d2286 59'E 65 56'S 145
d2374 42'E 69 28'S 145
d2629 38'E 69 20'S 145
uk23513 14'E 69 47'S 145
uk324149 42'E 66 47'S 145
uk32516 21'E 69 52'S 145
uk32613 10'E 69 51'S 145

*** 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)