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

* Last revised: 16:22:35 07/10/17

**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 1'W 75 46'S 151
a57a59 6'W 65 19'S 151
a57b59 28'W 68 3'S 151
a6128 41'W 61 13'S 151
a6346 20'W 76 14'S 151
a6461 17'W 69 42'S 151
b09b142 38'E 66 37'S 151
b09d35 37'W 61 44'S 151
b09f51 6'W 63 46'S 151
b09g41 39'E 68 1'S 151
b09h42 43'E 62 46'S 151
b09i134 37'E 64 54'S 151
b15aa15 55'E 72 31'S 151
b15ab51 16'E 65 58'S 151
b15t51 34'W 64 14'S 151
b15z52 11'W 64 15'S 151
b1638 20'W 73 17'S 151
b22a108 52'W 74 8'S 151
b28108 39'W 74 50'S 151
b29109 4'W 74 38'S 151
b30160 1'W 73 22'S 151
b31115 50'W 70 42'S 151
b35113 3'W 71 23'S 151
b37108 36'W 74 23'S 151
b38155 16'W 77 4'S 151
b39134 35'E 65 7'S 151
b40132 25'E 65 39'S 151
b41118 16'W 73 1'S 151
c15143 9'E 66 10'S 151
c18b114 6'E 65 25'S 151
c21b96 5'E 64 51'S 151
c2496 1'E 64 54'S 151
c28b51 1'W 63 49'S 151
c29143 4'E 66 11'S 151
c3096 15'E 64 45'S 151
c3195 59'E 64 50'S 151
c32160 25'E 69 16'S 151
c33162 13'E 69 38'S 151
d15a81 27'E 66 35'S 151
d15b81 57'E 67 12'S 151
d20a36 14'E 68 56'S 151
d20b35 47'E 68 26'S 151
d21a46 52'W 65 19'S 151
d21b77 4'E 66 13'S 151
d2286 59'E 65 56'S 151
d2374 42'E 69 28'S 151
d2629 38'E 69 20'S 151
uk23513 14'E 69 47'S 151
uk324149 42'E 66 47'S 151
uk32516 25'E 69 52'S 151
uk32613 10'E 69 51'S 151

*** 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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