Current Antarctic Iceberg Positions

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

* Last revised: 17:27:51 02/12/21

**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	40 0'W	75 45'S	040
a63	54 47'W	71 41'S	040
a64	60 38'W	69 23'S	040
a68a	34 6'W	56 58'S	038
a68e	38 5'W	52 55'S	040
a68g	34 59'W	56 37'S	038
a68h	35 35'W	55 53'S	037
a68i	35 10'W	55 43'S	038
a68j	35 50'W	56 54'S	031
a68k	35 0'W	56 27'S	038
a68l	34 43'W	56 58'S	037
a68m	35 8'W	56 40'S	038
a69a	61 2'W	67 55'S	040
a69b	61 7'W	67 29'S	040
a70	59 37'W	72 33'S	039
a71	59 36'W	72 39'S	040
a72	60 41'W	69 35'S	039
a73	60 22'W	69 38'S	039
b09b	143 22'E	66 14'S	040
b09g	41 47'E	68 0'S	040
b09i	42 14'W	70 30'S	040
b15ab	51 0'E	66 0'S	040
b22a	109 31'W	73 56'S	040
b28	108 46'W	74 40'S	040
b29	108 54'W	74 31'S	040
b37	111 38'W	72 41'S	040
b38	155 22'W	77 3'S	040
b39	50 8'E	65 56'S	037
b40	132 13'E	65 37'S	040
b42	126 32'W	72 48'S	040
b45	109 24'W	74 43'S	040
b46	110 48'W	72 37'S	040
b47	133 49'W	73 46'S	040
b50	140 30'W	74 4'S	040
c15	143 13'E	66 0'S	040
c18b	98 8'E	64 29'S	036
c21b	95 52'E	65 1'S	038
c24	96 1'E	64 50'S	039
c29	143 6'E	66 5'S	040
c30	96 18'E	64 46'S	037
c31	96 32'E	64 38'S	040
c32	132 48'E	66 3'S	040
c33	126 48'E	65 23'S	037
c35	147 43'E	68 6'S	040
c36	147 35'E	67 55'S	040
d15a	81 56'E	66 39'S	040
d15b	81 34'E	66 57'S	040
d20a	36 18'E	68 39'S	040
d21b	32 36'W	60 49'S	039
d23	74 39'E	69 25'S	040
d26	29 26'E	69 24'S	040
d27	78 22'E	67 43'S	040
d28	50 46'E	65 43'S	040
uk324	148 50'E	66 39'S	021

*** 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)