Antarctic Icebergs

CURRENT POSITIONS


Iceberg
Date Updated
Image Source for Update
Latitude
Longitude
Size (NM)
Archived Image
Date of Archived Image
A-23A
2008184
ENVISAT
76.07 S
41.29 W
40 X 32
2008156
A-27
2008184
ENVISAT
75.07 S
41.31 W
10 X 08
2008156
A-43D
2008182
ENVISAT
71.17 S
58.27 W
21 X 15
2008154
A-43F
2008170
ENVISAT
53.21 S
36.13 W
27 X 09
2008154
A-43K
2008182
ENVISAT
57.51 S
42.43 W
25 X 08
2008156
A-55
2008184
ENVISAT
65.34 S
61.22 W
14 X 04
2008155
A-56
2008184
ENVISAT
77.04 S
50.21 W
14 X 07
2008152
A-57
2008184
ENVISAT
77.37 S
48.45 W
19 X 05
2008152
B-09B
2008184
ENVISAT
67.12 S
148.33 E
51 X 20
2008070
B-15A
2008184
ENVISAT
62.21 S
177.24 E
61 X 11
2008070
B-15B
2008184
ENVISAT
67.28 S
77.23 E
38 X 16
2008071
B-15D
2008182
ENVISAT
55.01 S
42.24 W
25 X 05
2008156
B-15F
2008182
ENVISAT
66.06 S
58.54 E
20 X 07
2008071
B-15G
2008184
ENVISAT
66.27 S
48.11 E
26 X 12
2008069
B-15I
2008184
ENVISAT
66.56 S
150.04 E
11 X 02
2008070
B-15J
2008184
ENVISAT
70.18 S
168.23 E
27 X 15
2008156
B-15K
2008184
ENVISAT
66.43 S
75.01 E
31 X 04
2008157
B-15L
2008184
ENVISAT
70.25 S
38.02 W
16 X 07
2008156
B-15N
2008184
ENVISAT
65.41 S
81.11 E
30 X 07
2007365
B-15Q
2008184
ENVISAT
65.18 S
113.50 E
11 X 01
2008068
B-15R
2008184
ENVISAT
67.24 S
77.48 E
23 X 04
2008071
B-15S
2008184
ENVISAT
66.57 S
150.32 E
10 X 04
2008070
B-15T
2008184
ENVISAT
67.23 S
78.04 E
11 X 02
2008071
B-16
2008184
ENVISAT
66.53 S
149.53 E
16 X 07
2008070
B-17A
2008185
ENVISAT
65.21 S
127.00 E
19 X 08
2008068
B-17B
2008185
ENVISAT
64.24 S
75.14 E
26 X 11
2008157
B-21A
2008183
ENVISAT
74.28 S
105.38 W
12 X 07
2008184
B-22A
2008184
ENVISAT
74.24 S
108.14 W
44 X 26
2008184
B-27
2008183
ENVISAT
74.51 S
101.51 W
14 X 07
2008184
C-08
2008184
ENVISAT
65.55 S
55.21 W
15 X 08
2008156
C-15
2008184
ENVISAT
67.39 S
146.41 E
15 X 11
2008070
C-16
2008184
ENVISAT
66.05 S
116.41 E
26 X 10
2008068
C-18A
2008184
ENVISAT
71.58 S
48.40 W
17 X 03
2008154
C-18B
2008184
ENVISAT
66.35 S
117.06 E
20 X 05
2008068
C-19A
2008182
ENVISAT
55.58 S
146.21 W
83 X 13
2008170
C-19C
2008184
ENVISAT
65.13 S
65.11 E
19 X 13
2008156
C-19D
2008185
ENVISAT
74.14 S
39.08 W
17 X 08
2008156
C-21B
2008184
ENVISAT
65.00 S
95.56 E
13 X 12
2008071
C-24
2008184
ENVISAT
64.49 S
96.11 E
20 X 03
2008071
D-14
2008184
ENVISAT
69.26 S
75.01 E
14 X 09
2008071
D-15
2008184
ENVISAT
66.47 S
81.55 E
53 X 30
2008071
D-18
2008182
ENVISAT
58.59 S
39.32 W
11 X 04
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.

Quadrant A
HTML (1.33 MB)
Excel (679 KB)
0-90W
(Bellinghausen/Weddell Sea)
Quadrant B
HTML (1.69 MB)
Excel (862 KB)
90W-180
(Amundsen/Eastern Ross Sea)
Quadrant C
HTML (879 KB)
Excel (443 KB)
180-90E
(Western Ross Sea/Wilkesland)
Quadrant D
HTML (207 KB)
Excel (112 KB)
90E-0
(Amery/Eastern Weddell Sea) 

        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.

Picture of Berg A-83 Break Up on the South Weddell Sea
McMurdo Sound Radarsat comparison image.
Click to view Radarsat Image of Iceberg A-38 (courtesy of Canadian Space Agency)
Icebergs from the Larsen Shelf
Image of Larsen Ice Shelf (Please click on the picture to view the full image)

Ronne Iceberg "Spotlite" (courtesy of Canada Center for Remote Sensing)
NSIDC A38 (courtesy of National Snow and Ice Data Center)

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Page last updated on  July 3, 2008