National/Naval Ice Center - Antarctic Iceberg

CURRENT POSITIONS

*Iceberg*	*Date Updated*	*Image Source for Update*	*Latitude*	*Longitude*	*Size (NM)*	*Archived Image*	*Date of Archived Image*
A-23A	2009041	ENVISAT	76.02 S	41.31 W	40 X 32	A23A	2009029
A-27	2009039	ENVISAT	75.07 S	41.30 W	10 X 08	A27	2009029
A-43D	2009042	ENVISAT	71.18 S	58.28 W	21 X 15	A43D	2008154
A-43K	2009035	MODIS	52.52 S	16.57 W	23 X 06	A43K	2008316
A-55	2009041	ENVISAT	65.16 S	59.58 W	14 X 04	A55	2008155
A-56	2009041	ENVISAT	77.04 S	50.19 W	14 X 07	A56	2009029
A-57	2009041	ENVISAT	77.36 S	48.42 W	19 X 05	A57	2009029
A-58	2009041	ENVISAT	72.29 S	70.41 W	11 X 01	A58	2008352
A-59	2009041	ENVISAT	70.15 S	72.56 W	13 X 04	A59	2008352
A-60	2009041	ENVISAT	70.21 S	72.50 W	11 X 02	A60	2008352
B-09B	2009041	ENVISAT	67.16 S	148.21 E	51 X 20	B09B	2009028
B-15A	2009036	MODIS	53.38 S	150.58 W	40 X 07	B15A	2008352
B-15B	2009042	ENVISAT	67.44 S	77.13 E	38 X 16	B15B	2008352
B-15F	2009041	ENVISAT	65.28 S	51.20 E	20 X 07	B15F	2009028
B-15G	2009041	ENVISAT	66.26 S	48.09 E	26 X 12	B15G	2009028
B-15I	2009041	ENVISAT	66.55 S	150.04 E	11 X 02	B15I	2009028
B-15J	2009039	ENVISAT	68.49 S	156.27 E	27 X 15	B15J	2008351
B-15K	2009041	ENVISAT	65.41 S	50.58 E	29 X 04	B15K	2009028
B-15L	2009043	ENVISAT	65.24 S	38.55 W	16 X 07	B15L	2008156
B-15N	2009042	ENVISAT	65.13 S	73.19 E	30 X 07	B15N	2008313
B-15Q	2009035	ENVISAT	63.33 S	97.14 E	11 X 01	B15Q	2009028
B-15R	2009042	ENVISAT	67.31 S	77.43 E	23 X 04	B15R	2008352
B-15S	2009041	ENVISAT	66.32 S	149.52 E	10 X 04	B15S	2009028
B-15T	2009042	ENVISAT	65.09 S	78.52 E	11 X 02	B15T	2008352
B-16	2009041	ENVISAT	66.53 S	149.53 E	16 X 07	B16	2009028
B-17A	2009042	ENVISAT	65.30 S	120.05 E	19 X 08	B17A	2009028
B-17B	2009035	MODIS	57.22 S	83.55 E	26 X 11	B17B	2008314
B-21A	2009039	ENVISAT	75.30 S	105.40 W	12 X 07	B21A	2009026
B-22A	2009039	ENVISAT	74.23 S	108.10 W	44 X 26	B22A	2009026
B-27	2009039	ENVISAT	72.32 S	111.28 W	14 X 07	B27	2009026
C-08	2009043	ENVISAT	60.49 S	48.04 W	15 X 08	C08	2009029
C-15	2009041	ENVISAT	67.38 S	146.40 E	12 X 15	C15	2009028
C-16	2009043	ENVISAT	65.38 S	116.32 E	26 X 10	C16	2008068
C-18A	2009042	ENVISAT	62.57 S	50.51 W	17 X 03	C18A	2009029
C-18B	2009043	ENVISAT	65.56 S	116.48 E	20 X 05	C18B	2008068
C-19A	2009036	MODIS	59.46 S	111.06 W	67 X 05	C19A	2008170
C-19C	2009041	ENVISAT	65.58 S	50.30 E	19 X 13	C19C	2009028
C-19D	2009042	ENVISAT	69.38 S	51.14 W	17 X 08	C19D	2008352
C-21B	2009040	ENVISAT	65.03 S	95.55 E	13 X 12	C21B	2009028
C-24	2009040	ENVISAT	65.52 S	96.00 E	20 X 03	C24	2009028
D-14	2009042	ENVISAT	69.26 S	75.00 E	14 X 09	D14	2008352
D-15	2009043	ENVISAT	66.47 S	81.55 E	53 X 30	D15	2008352
D-18	2008326	ENVISAT	56.47 S	29.40 W	11 X 04	D18	2008064

Antarctic icebergs are identified and named by the National Ice Center (NIC), when they meet two basic requirements. The first requirement is that the iceberg must measure at least 10 nm along the long axis. The second requirement is the iceberg be south of 60S latitude. The NIC will continue to track all icebergs that meet these requirements. Exceptions to the requirements above are made for operational purposes and are subject to change with future advances in satellite imagery. Reduction in size below 10 nm will result in removal from database. Loss of visual sighting for 30 consecutive days of a iceberg north of 60S latitude will also result in removal from database as well as warnings dissemenated to vessels in the region. Iceberg names are derived from the Antarctic quadrant in which they were originally sighted. An archive of all icebergs tracked by NIC since 1976 is available in HTML and Excel Formats below.

Antarctic Icebergs calve from numerous ice shelves in Antarctica. When an iceberg is first sighted and meets the above requirements, the NIC documents its point of origin. The letter of the quadrant, along with a sequential number is assigned to the iceberg. For example, A-38 (pictured below) is sequentially the 38th iceberg found by the NIC in Antarctica between 0-90W (Quadrant A). When a currently identified and named iceberg breaks apart, the new division(s) are also named. These "new" icebergs include the "host" iceberg's original name and an alpha suffix to identify it as a product of the original iceberg. Therefore, if A-38 breaks into three pieces, the three new icebergs would be designated as A-38A (the host iceberg with a revised alpha suffix), A-38B, and A-38C.