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

* Last revised: 10:27:50 01/07/19

**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 0'W 75 45'S 281
a57a56 0'W 62 29'S 281
a6346 44'W 76 17'S 281
a6460 39'W 69 27'S 281
a68a58 28'W 67 6'S 281
a68b58 20'W 65 53'S 281
b09b143 12'E 66 14'S 281
b09f54 7'W 61 14'S 281
b09g41 43'E 68 2'S 281
b09i105 54'E 65 12'S 281
b15aa38 29'W 65 46'S 321
b15ab51 6'E 65 35'S 321
b15t32 36'W 54 33'S 321
b1646 34'W 62 34'S 321
b22a109 6'W 74 1'S 321
b28108 27'W 74 26'S 321
b29108 33'W 74 23'S 321
b30141 11'W 62 51'S 321
b37108 38'W 74 25'S 321
b38155 5'W 77 3'S 321
b39122 15'E 65 39'S 321
b40132 23'E 65 38'S 321
b41136 53'W 73 44'S 321
b42116 38'W 73 14'S 321
b43127 50'W 72 57'S 321
b46101 9'W 75 1'S 321
c15143 7'E 66 12'S 321
c18b114 8'E 65 25'S 321
c21b95 31'E 64 32'S 321
c2496 0'E 64 30'S 321
c29142 30'E 66 3'S 321
c3096 10'E 64 28'S 321
c3196 19'E 64 24'S 321
c32133 42'E 64 43'S 316
c33155 13'E 68 23'S 316
c34142 30'E 65 31'S 316
d15a83 43'E 65 22'S 341
d15b81 34'E 67 10'S 274
d20a36 17'E 68 54'S 274
d21b77 1'E 66 18'S 183
d2286 57'E 65 55'S 274
d2374 41'E 69 26'S 274
d2629 21'E 69 24'S 274
d2781 57'E 67 15'S 274
uk23512 24'E 69 43'S 183
uk324148 55'E 66 45'S 183
uk32516 5'E 69 55'S 183
uk32613 15'E 69 38'S 183

*** 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