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

* Last revised: 14:40:57 01/19/18

**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 018
a57a56 20'W 63 27'S 018
a57b59 8'W 65 5'S 018
a6115 20'W 55 8'S 018
a6346 40'W 76 17'S 018
a6460 36'W 69 28'S 018
a68a60 16'W 67 29'S 018
a68b59 28'W 67 3'S 018
b09b143 15'E 66 13'S 018
b09d23 30'W 55 13'S 018
b09f53 20'W 61 35'S 018
b09g41 26'E 67 36'S 018
b09i110 32'E 65 9'S 018
b15aa26 12'W 74 10'S 018
b15ab51 10'E 65 36'S 018
b15t52 15'W 60 22'S 018
b15z48 32'W 59 1'S 018
b1650 29'W 72 35'S 018
b22a108 36'W 74 3'S 341
b28108 33'W 74 27'S 018
b29108 53'W 74 26'S 018
b30155 10'W 68 22'S 018
b3191 32'W 67 2'S 018
b37108 28'W 74 19'S 018
b38155 11'W 77 4'S 018
b39134 28'E 65 6'S 018
b40132 12'E 65 18'S 018
b41120 13'W 72 30'S 018
b42108 12'W 72 35'S 018
b43108 43'W 72 49'S 018
c15143 14'E 66 8'S 018
c18b113 21'E 65 21'S 018
c21b94 33'E 64 46'S 018
c2496 2'E 64 33'S 018
c28b53 21'W 61 10'S 018
c29142 46'E 66 6'S 018
c3096 18'E 64 44'S 018
c3196 17'E 64 30'S 018
c32159 49'E 69 17'S 018
c33161 19'E 69 22'S 018
c34141 26'E 66 6'S 018
d15a83 43'E 65 22'S 341
d15b79 20'E 67 38'S 018
d20a30 41'E 68 25'S 018
d21a46 16'W 65 35'S 018
d21b77 5'E 66 9'S 018
d2286 36'E 65 33'S 018
d2374 40'E 69 18'S 018
d2629 12'E 69 18'S 018
uk23512 51'E 69 41'S 018
uk324149 1'E 66 34'S 018
uk32515 32'E 70 12'S 018
uk32612 51'E 69 49'S 018

*** 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