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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 11:07:53 11/07/16

**Operational users please note: This list cannot possibly contain all potentially hazardous icebergs in Antarctic waters -- Scatterometers such as ASCAT 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 data. 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****)
a23a42 14'W 75 57'S 311
a57a58 39'W 67 26'S 311
a57b59 27'W 68 1'S 311
a6134 55'W 63 43'S 311
a6345 55'W 76 25'S 311
a6460 46'W 69 41'S 311
a6628 17'W 52 44'S 311
b09b142 39'E 66 37'S 311
b09d43 40'W 65 11'S 311
b09f44 17'W 68 29'S 311
b09g41 44'E 68 1'S 311
b09h38 53'E 70 21'S 311
b09i135 37'E 65 5'S 311
b15aa25 21'E 70 2'S 311
b15ab51 17'E 65 58'S 311
b15k42 27'W 50 0'S 311
b15t45 44'W 69 40'S 311
b15z46 5'W 69 48'S 311
b1637 21'W 75 43'S 311
b22a110 1'W 74 6'S 311
b28108 29'W 74 52'S 311
b29109 47'W 74 43'S 311
b30152 13'W 74 18'S 311
b31112 35'W 70 58'S 311
b34178 52'E 67 21'S 311
b35107 47'W 72 16'S 311
b37109 2'W 74 30'S 311
b38155 20'W 77 3'S 311
b39135 45'E 65 8'S 311
b40132 31'E 65 34'S 311
b41106 46'W 74 6'S 311
c15143 16'E 66 25'S 311
c18b114 17'E 65 23'S 311
c21b95 51'E 64 58'S 311
c2495 40'E 64 59'S 311
c28b44 22'W 68 35'S 311
c29142 50'E 66 4'S 311
c3096 52'E 64 42'S 311
c3196 51'E 64 42'S 311
c32162 33'E 70 3'S 311
c33169 48'E 73 30'S 311
d15a81 36'E 66 42'S 311
d15b82 19'E 67 38'S 311
d20a36 34'E 69 7'S 311
d20b35 49'E 68 34'S 311
d21a37 40'W 68 14'S 311
d21b81 42'E 65 58'S 311
d2287 6'E 65 54'S 311
d2374 21'E 69 24'S 311
d2629 14'E 69 27'S 311
uk23513 7'E 69 44'S 311
uk324149 28'E 66 6'S 311
uk32515 43'E 69 49'S 311
uk32613 16'E 69 50'S 311

*** 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)