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

* Last revised: 19:41:56 10/17/17

**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 6'W 75 44'S 289
a57a55 58'W 64 24'S 289
a57b59 46'W 66 29'S 289
a6119 20'W 55 38'S 289
a6346 38'W 76 17'S 289
a6460 45'W 69 35'S 289
a68a60 30'W 67 48'S 289
a68b60 35'W 67 6'S 289
b09b142 36'E 66 21'S 289
b09d28 27'W 56 20'S 289
b09f54 36'W 61 46'S 289
b09g41 42'E 67 58'S 289
b09h35 32'E 52 46'S 289
b09i120 14'E 65 34'S 289
b15aa23 0'E 73 27'S 289
b15ab51 14'E 65 59'S 289
b15t52 20'W 60 37'S 289
b15z49 6'W 59 36'S 289
b1648 32'W 73 31'S 289
b22a108 50'W 74 4'S 289
b28108 39'W 74 50'S 289
b29109 25'W 74 39'S 289
b30156 53'W 69 43'S 289
b31102 33'W 66 2'S 289
b37108 36'W 74 23'S 289
b38155 16'W 77 4'S 289
b39134 28'E 65 5'S 289
b40132 20'E 65 37'S 289
b41118 34'W 72 59'S 289
B42107 49'W 73 42'S 289
c15143 2'E 66 7'S 289
c18b114 1'E 65 26'S 289
c21b95 35'E 64 52'S 289
c2496 6'E 64 50'S 289
c28b54 2'W 61 51'S 289
c29142 39'E 66 34'S 289
c3096 19'E 64 51'S 289
c3196 27'E 64 48'S 289
c32159 32'E 69 34'S 289
c33162 6'E 69 39'S 289
C34143 7'E 65 52'S 289
d15a81 30'E 66 32'S 289
d15b81 46'E 67 4'S 289
d20a36 14'E 68 56'S 289
d21a46 43'W 65 30'S 289
d21b77 6'E 66 15'S 289
d2286 58'E 65 55'S 289
d2374 21'E 69 21'S 289
d2629 38'E 69 20'S 289
uk23513 14'E 69 47'S 289
uk324149 15'E 66 54'S 289
uk32516 25'E 69 52'S 289
uk32613 10'E 69 51'S 289

*** 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