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Current* Antarctic large iceberg positions derived from ASCAT**

* Last revised: 16:50:42 05/02/16

**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****)
a23a40 51'W 74 18'S 122
a5628 59'W 51 31'S 122
a57a58 51'W 69 59'S 122
a57b60 2'W 69 12'S 122
a6133 31'W 72 50'S 122
a6345 46'W 76 22'S 122
a6460 42'W 69 16'S 122
a6653 36'W 61 33'S 122
a6734 34'W 76 49'S 122
b09b142 40'E 66 38'S 122
b09d35 37'W 74 2'S 122
b09f32 37'W 73 52'S 122
b09g41 47'E 68 3'S 122
b09h20 54'E 73 31'S 122
b09i135 28'E 65 1'S 122
b15aa48 49'E 65 45'S 122
b15ab51 15'E 65 59'S 122
b15k55 8'W 62 7'S 122
b15r9 30'W 55 41'S 122
b15t33 42'W 73 54'S 122
b15x36 0'W 55 18'S 122
b15y53 40'W 61 34'S 122
b15z33 12'W 74 8'S 122
b1633 6'W 76 40'S 122
b22a108 59'W 74 2'S 122
b28108 55'W 74 44'S 122
b29109 20'W 74 47'S 122
b30144 20'W 74 24'S 122
b31112 41'W 71 30'S 122
b34172 25'W 71 53'S 122
b35105 26'W 74 20'S 122
b37108 40'W 74 34'S 122
b38155 18'W 77 4'S 122
b39143 32'E 66 54'S 122
b40136 7'E 65 9'S 122
c15143 6'E 66 23'S 122
c18b114 1'E 65 24'S 122
c21b95 48'E 64 57'S 122
c2495 56'E 65 2'S 122
c28b33 23'W 74 18'S 122
c29143 0'E 66 8'S 122
c3096 16'E 64 47'S 122
c3196 31'E 64 46'S 122
c32162 35'E 70 1'S 122
c33165 47'E 74 41'S 122
d15a81 53'E 66 42'S 122
d15b81 34'E 67 0'S 122
d20a36 21'E 69 9'S 122
d20b36 18'E 68 46'S 122
d21a27 28'W 74 4'S 122
d21b81 43'E 65 55'S 122
d2287 3'E 65 56'S 122
d2374 37'E 69 25'S 122
d2535 46'E 67 43'S 122
d2629 26'E 69 21'S 122
uk23513 49'E 69 35'S 122
uk324148 47'E 65 45'S 122
uk32513 46'E 69 39'S 122
uk32613 55'E 69 31'S 122

*** 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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