Current Antarctic Iceberg Positions

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

* Last revised: 14:52:55 04/26/21

**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****)
a23a	39 50'W	75 41'S	111
a63	57 11'W	69 13'S	111
a64	60 45'W	68 17'S	111
a68a	33 0'W	52 39'S	111
a69a	60 59'W	67 31'S	111
a69b	60 46'W	67 26'S	111
a70	60 12'W	70 10'S	111
a71	60 33'W	70 21'S	111
a74	25 54'W	75 11'S	111
a75	59 53'W	73 13'S	111
b09b	143 30'E	66 15'S	111
b09g	41 51'E	68 12'S	111
b09i	45 38'W	68 39'S	111
b15ab	51 5'E	66 2'S	111
b22a	109 25'W	73 54'S	111
b28	108 46'W	74 40'S	111
b29	108 54'W	74 31'S	111
b37	112 12'W	72 33'S	111
b38	155 11'W	77 2'S	111
b39	36 22'E	68 14'S	111
b40	132 14'E	65 39'S	111
b42	133 25'W	73 15'S	111
b45	109 21'W	74 42'S	111
b46	112 50'W	72 21'S	111
b47	133 52'W	73 46'S	111
b50	145 34'W	73 43'S	111
c15	143 17'E	65 58'S	111
c18b	89 30'E	66 32'S	111
c21b	95 50'E	65 2'S	111
c24	96 1'E	64 50'S	111
c29	142 53'E	66 4'S	111
c30	96 18'E	64 46'S	111
c31	96 32'E	64 40'S	111
c32	132 48'E	66 3'S	111
c33	126 39'E	65 26'S	111
c35	148 13'E	67 39'S	111
c36	147 26'E	67 55'S	111
d15a	81 56'E	66 40'S	111
d15b	81 34'E	66 57'S	111
d20a	36 21'E	68 30'S	111
d21b	27 12'W	58 45'S	107
d23	74 39'E	69 25'S	111
d26	29 24'E	69 21'S	111
d27	70 0'E	66 50'S	111
d28	39 32'E	68 9'S	111
uk324	148 57'E	66 34'S	111

*** 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)