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

* Last revised: 14:34:41 09/28/20

**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****)
a23a40 19'W 75 35'S 268
a6343 49'W 73 37'S 268
a6461 0'W 69 45'S 268
a68a49 6'W 59 0'S 266
a68c32 38'W 55 59'S 268
a69a60 44'W 68 49'S 268
a69b60 36'W 68 36'S 268
b09b143 12'E 66 6'S 267
b09g41 41'E 67 57'S 268
b09i32 28'W 71 44'S 268
b15ab51 1'E 66 0'S 267
b22a109 18'W 73 58'S 268
b28108 48'W 74 48'S 268
b29109 10'W 74 34'S 268
b37111 32'W 72 43'S 268
b38155 24'W 77 2'S 268
b3958 54'E 66 31'S 268
b40132 8'E 65 37'S 267
b41177 2'W 72 7'S 268
b42126 29'W 72 52'S 268
b45109 29'W 74 44'S 268
b46107 7'W 74 0'S 268
b47133 32'W 73 44'S 268
b50133 19'W 73 46'S 268
c15143 21'E 65 59'S 267
c18b100 25'E 65 2'S 267
c21b95 55'E 65 0'S 268
c2495 55'E 65 0'S 268
c29142 54'E 66 7'S 267
c3096 20'E 64 47'S 268
c3196 32'E 64 42'S 268
c32132 45'E 66 4'S 267
c33129 45'E 65 22'S 267
c3484 3'E 65 50'S 268
c35148 6'E 68 12'S 268
c36147 55'E 68 4'S 268
d15a81 49'E 66 36'S 268
d15b81 34'E 66 57'S 268
d20a36 16'E 68 38'S 268
d21b43 47'W 65 34'S 268
d2374 39'E 69 25'S 268
d2629 29'E 69 26'S 268
d2779 31'E 67 34'S 268
d2857 50'E 65 56'S 268
uk324149 5'E 66 31'S 268

*** 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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