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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 10:50:26 05/22/17

**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 139
a57a59 17'W 65 27'S 139
a57b59 28'W 68 3'S 139
a6129 46'W 61 49'S 139
a6346 25'W 76 18'S 139
a6461 17'W 69 42'S 139
b09b142 38'E 66 37'S 139
b09d37 47'W 62 28'S 139
b09f51 19'W 64 46'S 139
b09g41 46'E 68 2'S 139
b09h44 15'E 64 8'S 139
b09i135 37'E 64 59'S 139
b15aa15 55'E 72 31'S 139
b15ab51 16'E 65 58'S 139
b15t52 41'W 65 13'S 139
b15z52 13'W 65 27'S 139
b1635 44'W 73 19'S 139
b22a108 52'W 74 8'S 139
b28108 39'W 74 50'S 139
b29109 4'W 74 38'S 139
b30158 20'W 73 38'S 139
b31115 24'W 70 49'S 139
b35112 41'W 71 25'S 139
b37108 36'W 74 23'S 139
b38155 16'W 77 4'S 139
b39134 35'E 65 7'S 139
b40132 25'E 65 39'S 139
b41116 18'W 73 0'S 139
c15143 8'E 66 13'S 139
c18b114 7'E 65 25'S 139
c21b95 58'E 64 52'S 139
c2496 6'E 64 53'S 139
c28b51 28'W 64 39'S 139
c29143 3'E 66 14'S 139
c3096 15'E 64 45'S 139
c3195 59'E 64 52'S 139
c32160 19'E 69 17'S 139
c33162 8'E 69 40'S 139
d15a81 36'E 66 35'S 139
d15b81 57'E 67 12'S 139
d20a36 14'E 68 56'S 139
d20b35 46'E 68 28'S 139
d21a46 53'W 65 20'S 139
d21b74 15'E 65 23'S 139
d2286 58'E 65 55'S 139
d2374 43'E 69 28'S 139
d2629 41'E 69 20'S 139
uk23513 17'E 69 48'S 139
uk324149 44'E 66 46'S 139
uk32516 22'E 69 51'S 139
uk32613 12'E 69 51'S 139

*** 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)