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

* Last revised: 17:08:30 11/16/17

**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 5'W 75 47'S 315
a57a56 16'W 64 13'S 315
a57b60 42'W 65 57'S 315
a6120 4'W 55 40'S 315
a6346 36'W 76 18'S 315
a6460 36'W 69 28'S 315
a68a60 22'W 67 40'S 315
a68b60 30'W 67 7'S 315
b09b142 44'E 66 37'S 315
b09d27 14'W 55 33'S 315
b09f54 20'W 61 47'S 315
b09g41 42'E 67 58'S 315
b09i119 7'E 65 34'S 315
b15aa26 21'E 74 17'S 315
b15ab51 11'E 65 58'S 315
b15t52 15'W 60 36'S 315
b15z47 30'W 58 32'S 315
b1649 1'W 73 1'S 315
b22a108 50'W 74 4'S 315
b28108 39'W 74 50'S 315
b29108 52'W 74 40'S 315
b30155 33'W 69 12'S 315
b3196 1'W 66 30'S 315
b37108 36'W 74 23'S 315
b38155 16'W 77 4'S 315
b39134 24'E 65 3'S 315
b40132 20'E 65 36'S 315
b41118 22'W 72 54'S 315
B42107 51'W 73 29'S 315
c15143 2'E 66 7'S 315
c18b114 1'E 65 26'S 315
c21b95 35'E 64 52'S 315
c2496 6'E 64 50'S 315
c28b54 25'W 61 45'S 315
c29142 39'E 66 34'S 315
c3096 19'E 64 51'S 315
c3196 27'E 64 48'S 315
c32159 32'E 69 34'S 315
c33162 6'E 69 39'S 315
C34143 7'E 65 52'S 315
d15a81 30'E 66 32'S 315
d15b81 46'E 67 4'S 315
d20a36 14'E 68 56'S 315
d21a46 47'W 65 1'S 315
d21b76 39'E 66 20'S 315
d2286 58'E 65 55'S 315
d2374 21'E 69 21'S 315
d2629 14'E 69 22'S 315
uk23513 14'E 69 47'S 315
uk324149 15'E 66 54'S 315
uk32516 25'E 69 52'S 315
uk32613 10'E 69 51'S 315

*** 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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