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

* Last revised: 11:40:40 07/09/18

**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 7'W 75 46'S 183
a57a55 57'W 62 30'S 183
a57b56 17'W 63 55'S 183
a6346 41'W 76 15'S 183
a6460 55'W 69 46'S 183
a68a60 12'W 67 20'S 183
a68b59 35'W 66 29'S 183
b09b143 30'E 66 15'S 183
b09f54 7'W 61 14'S 183
b09g41 42'E 68 1'S 183
b09i106 9'E 65 17'S 183
b15aa37 52'W 70 45'S 183
b15ab51 22'E 65 56'S 183
b15t36 21'W 59 45'S 183
b1653 57'W 68 16'S 183
b22a108 36'W 74 3'S 341
b28108 26'W 74 22'S 183
b29109 2'W 74 18'S 183
b30150 35'W 65 44'S 183
b37108 23'W 74 24'S 183
b38155 17'W 77 3'S 183
b39123 16'E 65 39'S 183
b40132 25'E 65 38'S 183
b41134 42'W 73 47'S 183
b42112 30'W 72 24'S 183
b43112 40'W 72 22'S 183
c15143 5'E 66 12'S 183
c18b114 3'E 65 25'S 183
c21b95 50'E 64 57'S 183
c2496 8'E 64 50'S 183
c28b44 58'W 58 20'S 183
c29142 53'E 66 6'S 183
c3096 21'E 64 42'S 183
c3196 26'E 64 51'S 183
c32151 31'E 67 31'S 183
c33155 31'E 68 38'S 183
c34142 59'E 65 53'S 183
d15a83 43'E 65 22'S 341
d15b81 34'E 67 10'S 183
d20a36 17'E 68 54'S 183
d21b77 1'E 66 18'S 183
d2286 57'E 65 55'S 183
d2374 41'E 69 26'S 183
d2629 21'E 69 24'S 183
d2781 57'E 67 15'S 183
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
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