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

* Last revised: 10:26:42 02/15/18

**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 043
a57a56 29'W 63 29'S 043
a57b59 8'W 65 5'S 043
a6114 59'W 55 15'S 043
a6346 29'W 76 16'S 043
a6460 18'W 69 19'S 043
a68a60 16'W 67 29'S 043
a68b59 34'W 66 40'S 043
b09b143 23'E 66 17'S 043
b09d23 11'W 54 33'S 043
b09f53 44'W 61 31'S 043
b09g41 26'E 67 30'S 043
b09i109 17'E 65 30'S 043
b15aa28 4'W 73 28'S 043
b15ab51 10'E 65 36'S 043
b15t52 15'W 60 22'S 043
b15z47 10'W 58 6'S 043
b1651 10'W 72 50'S 043
b22a108 36'W 74 3'S 341
b28108 32'W 74 14'S 043
b29109 2'W 74 18'S 043
b30155 10'W 68 9'S 043
b3187 14'W 66 17'S 043
b37108 20'W 74 24'S 043
b38155 6'W 77 3'S 043
b39133 4'E 64 26'S 043
b40132 12'E 65 18'S 043
b41125 19'W 72 37'S 043
b42109 8'W 72 30'S 043
b43109 10'W 72 29'S 043
c15143 13'E 66 9'S 043
c18b113 46'E 65 13'S 043
c21b95 36'E 64 26'S 043
c2496 2'E 64 33'S 043
c28b51 27'W 60 21'S 043
c29142 32'E 66 4'S 043
c3096 15'E 64 27'S 043
c3196 19'E 64 26'S 043
c32158 46'E 69 11'S 043
c33161 14'E 69 33'S 043
c34143 3'E 65 35'S 043
d15a83 43'E 65 22'S 341
d15b81 26'E 67 5'S 043
d20a36 11'E 68 37'S 043
d21a46 33'W 65 20'S 043
d21b77 5'E 66 9'S 043
d2286 36'E 65 33'S 043
d2374 25'E 69 14'S 043
d2629 12'E 69 15'S 043
uk23512 34'E 69 42'S 043
uk324149 32'E 66 49'S 043
uk32515 50'E 69 54'S 043
uk32612 50'E 69 38'S 043

*** 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