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Current* Antarctic large iceberg positions derived from ASCAT and OSCAT-2**

* Last revised: 15:17:27 04/30/18

**Operational users please note: This list cannot possibly contain all potentially hazardous icebergs in Antarctic waters -- Scatterometers such as ASCAT and OSCAT-2 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 and OSCAT-2 data in tandem. 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****)
a23a41 4'W 75 49'S 059
a57a56 7'W 63 14'S 059
a57b58 55'W 65 5'S 059
a6114 59'W 55 15'S 059
a6346 38'W 76 18'S 059
a6460 1'W 69 1'S 059
a68a60 6'W 67 22'S 059
a68b59 49'W 66 41'S 059
b09b143 23'E 66 17'S 059
b09d20 23'W 54 8'S 059
b09f54 9'W 61 16'S 059
b09g40 15'E 67 58'S 059
b09i109 17'E 65 30'S 059
b15aa28 28'W 72 31'S 059
b15ab51 10'E 65 36'S 059
b15t52 15'W 60 22'S 059
b15z46 9'W 58 19'S 059
b1650 21'W 72 17'S 059
b22a108 36'W 74 3'S 341
b28108 24'W 74 22'S 059
b29109 2'W 74 18'S 059
b30154 53'W 68 1'S 059
b3187 14'W 66 17'S 059
b37108 20'W 74 24'S 059
b38155 15'W 77 3'S 059
b39132 30'E 65 39'S 059
b40132 23'E 65 28'S 059
b41126 44'W 72 14'S 059
b42109 14'W 72 41'S 059
b43108 41'W 72 49'S 059
c15143 15'E 66 9'S 059
c18b113 40'E 65 14'S 059
c21b95 35'E 64 29'S 059
c2496 2'E 64 25'S 059
c28b50 19'W 59 32'S 059
c29142 41'E 66 4'S 059
c3096 7'E 64 26'S 059
c3196 19'E 64 26'S 059
c32158 51'E 69 10'S 059
c33159 45'E 69 0'S 059
c34142 33'E 65 32'S 059
d15a83 43'E 65 22'S 341
d15b81 26'E 67 4'S 059
d20a36 12'E 68 37'S 059
d21a46 33'W 65 20'S 059
d21b77 5'E 66 9'S 059
d2286 36'E 65 33'S 059
d2374 16'E 69 28'S 059
d2629 11'E 69 15'S 059
d2781 29'E 67 9'S 059
uk23512 34'E 69 42'S 059
uk324149 21'E 66 38'S 059
uk32516 5'E 69 55'S 059
uk32613 12'E 69 39'S 059

*** 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
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