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

* Last revised: 10:17:43 02/23/21

**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 0'W 75 45'S 051
a6355 2'W 71 36'S 051
a6460 34'W 69 7'S 051
a68a34 3'W 56 50'S 048
a68e38 35'W 53 22'S 051
a68g36 9'W 56 13'S 043
a68h34 59'W 54 25'S 050
a68i35 49'W 52 40'S 050
a68j35 21'W 56 5'S 051
a68k35 59'W 56 28'S 043
a68l 0'E 0'N
a68m36 12'W 56 26'S 043
a68n35 51'W 56 0'S 051
a68o35 34'W 56 3'S 046
a68p35 25'W 56 6'S 051
a69a60 46'W 67 55'S 051
a69b61 2'W 67 28'S 051
a7059 38'W 72 9'S 051
a7159 59'W 72 15'S 051
a7260 49'W 69 30'S 051
a7360 24'W 69 22'S 051
b09b143 23'E 66 15'S 051
b09g41 35'E 67 57'S 051
b09i42 19'W 70 2'S 051
b15ab51 3'E 66 2'S 051
b22a109 31'W 73 56'S 051
b28108 46'W 74 40'S 051
b29108 54'W 74 31'S 051
b37111 34'W 72 40'S 051
b38155 22'W 77 3'S 051
b3947 22'E 66 36'S 050
b40132 18'E 65 39'S 051
b42126 14'W 72 44'S 051
b45109 21'W 74 42'S 051
b46111 33'W 72 32'S 050
b47133 49'W 73 46'S 051
b50140 32'W 73 54'S 051
c15143 14'E 65 59'S 051
c18b98 7'E 64 17'S 051
c21b95 50'E 65 2'S 051
c2496 1'E 64 50'S 051
c29142 51'E 66 6'S 051
c3096 18'E 64 46'S 051
c3196 32'E 64 38'S 051
c32132 48'E 66 3'S 051
c33126 39'E 65 25'S 051
c35147 47'E 68 4'S 051
c36147 35'E 67 55'S 051
d15a81 56'E 66 39'S 051
d15b81 34'E 66 57'S 051
d20a36 18'E 68 39'S 051
d21b31 45'W 60 46'S 044
d2374 39'E 69 25'S 051
d2629 26'E 69 24'S 051
d2778 11'E 67 47'S 051
d2848 44'E 66 14'S 051
uk324148 55'E 66 37'S 051

*** 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)