Icebergs compared to other sizesThe International Iceberg Patrol has a home page on the web with information regarding the North Atlantic ocean icebergs especially.
Iceberg photographs by Marc Deneyer are available at http://users.skynet.be/deneyer. The page is in both English and French. Iceberg photographs and some explanatory text are available from Ronald Kramer's page at http://www.geocities.com/Yosemite/Rapids/4233/ijsbergen.htm.
The sizes and locations of Antarctic icebergs are taken from (US) National Ice Center analyses of 30 November 1995, 4 April 1996, 19-23 May, 1997, and 10 July 1998. The data are from previous observations (dated on the tables). The current position of the icebergs will be different from that shown, possibly greatly different. Sizes are approximate, and the area approximation is particularly crude (it isn't even one of the fields the analysts compute. The area is computed assuming that the bergs are rectangular. They aren't, so don't rely on the areas for much except a relative sense of size.)
Between May, 1997 and July, 1998, we lost D-16 from the Amery basin, B-10B, B-12 and B-13 from the Ross Sea, and gained A-36 and A-37 in the Weddell Sea, and C-13. B-10A has shrunk substantially, though it is still quite large. Largest berg currently is D-15, at about 6170 square km, roughly 2400 square miles.
The 1997 analysis changed to using the day of the year for dates. A-32 and C-5, present in November 1995, had disintegrated, melted, or were not findable in the 4 April 1996 analysis. Two new bergs, C-8 and D-10, are present in the 4 April 1996 analysis. 'Movement' is the change of location in latitude and longitude between the two analyses. Speeds are typically higher than this would suggest because the tracks tend to loop back on themselves.
Last Modified 27 November 2002. Robert.Grumbine@noaa.gov
10 July 1998 Analysis - DMSP F-12, F-13, and F-14 data
Name Last Obs'd Lat Lon Size(Nm) ~Area(km^2)
A-22A 1998-190 7623S 04457W 21x32 2300
A-22B 1998-186 7059S 04920W 13x38 1600
A-23A 1998-190 7606S 04058W 32x34 3725
A-23B 1998-177 6726S 05111W 9x11 340
A-27 1998-190 7621S 04243W 6x10 205
A-35 1998-190 7636S 03550W 16x19 1040
A-36 1998-179 7052S 05951W 7x14 340
A-37 1998-179 7050S 06024W 7x10 240
D-11 1998-128 6801S 03500E 9x48 1475
D-12 1998-186 6938S 01736E 9x22 680
D-14 1998-184 6930S 07500E 9x16 490
D-15 1998-116 6649S 08158E 34x53 6170
B-9A 1998-167 6456S 11531E 15x24 1240
B-9B 1998-184 6706S 14909E 16x45 2475
B-9C 1998-184 6522S 07112E 5x10 170
B-10A 1998-124 6721S 11055W 21x42 3025
C-8 1998-184 6710S 14656E 12x28 1150
C-9 1998-184 6705S 14637E 7x17 400
C-10 1998-093 6435S 09802E 17x29 1685
C-11 1998=093 6449S 09630E 4x21 285
C-12 1998-093 6439S 09709E 6x12 245
19-23 May 1997 Analysis - AVHRR Data Source except as noted
Name Last Obs'd Lat Lon Size(Nm) ~Area(km^2) A-22A 1997-137 7629S 04457W 21x32 2300 A-22B 1997-137 7536S 04145W 12x38 1560 A-23A 1997-137 7607S 04024W 32x34 3725 A-23B 1997-118 7535S 03719W 9x11 340 A-27 1997-118 7634S 04212W 6x10 205 A-35 1997-137 7521S 02948W 16x19 1040 D-11 1997-140 6636S 05948E 9x48 1475 D-12 1997-132 6533S 05518E 22x28 2100 D-13 1997-126 6630S 04848E 4x14 190 D-14 1997-097 6942S 07451E 9x16 490 D-15 1997-098 6649S 08158E 34x53 6170 D-16 1997-098 6606S 05754E 5x13 220 B-9B 1997-142 6706S 14909E 16x45 2460 DMSP F13 data B-9C 1997-088 6509S 12803E 7x13 310 B-10A 1997-132 6736S 12942W 21x54 3880 DMSP F13 data B-10B 1997-098 7127S 17303W 8x11 300 B-12 1997-070 7538S 16018W 2x13 90 DMSP F13 data B-13 1997-090 7648S 15715W 5x16 275 C-8 1997-142 6709S 14652E 12x28 1150 DMSP F13 C-9 1997-142 6702S 14630E 7x17 400 DMSP F13 C-10 1997-064 6429S 09827E 17x29 1685 DMSP F13 C-11 1997-064 6449S 09630E 4x21 285 DMSP F13 C-12 1997-064 6639S 09709E 6x12 245 DMSP F13 C-13 1997-113 7403S 16849E 2x 5 354 April 1996 Analysis - DMSP F-13 Data Source
Name Last Obs'd Lat Lon Size(Nm) ~Area(km^2) Movement B-9A 28 Mar 1996 6532S 13241E 25x16 0001N 0036W B-9B 28 Mar 1996 6706S 14933E 51x18 0001N 0003W B-10A 27 Mar 1996 7122S 13052W 60x25 0021N 0229W B-10B 27 Mar 1996 7338S 13449W 11x08 0031S 0302W C-8 4 Apr 1996 6710S 14652E 12x28 1152 A-22A 4 Apr 1996 7628S 04411W 32x22 0001S 0032E A-22B 4 Apr 1996 7527S 03919W 38x12 0012N 0103E A-23A 4 Apr 1996 7613S 04030W 30x37 0001N 0057E A-23B 4 Apr 1996 7601S 03733W 11x09 0003S 0104E A-27 4 Apr 1996 7631S 04239W 11x07 0015N 0028E D-10 7 Mar 1996 6905S 07500E 17x09 52530 November 1995 Analysis
Name Last Obs'd Lat Lon Size(Nm) ~Area(km^2) B-9A 24 Nov 1995 6533S 13317E 25x15 1300 B-9B 29 Nov 1995 6707S 14936E 51x18 3150 B-10A 29 Nov 1995 7143S 12823W 68x27 6300 B-10B 29 Nov 1995 7307S 13147W 8x12 330 A-22A 22 Nov 1995 7627S 04443W 21x32 2300 A-22B 22 Nov 1995 7539S 04022W 38x14 1800 A-23A 22 Nov 1995 7614S 04133W 31x32 3400 A-23B 22 Nov 1995 7558S 03837W 10x15 310 A-27 22 Nov 1995 7646S 04307W 10x06 210 A-32A 28 Nov 1995 5830S 05115W 34x16 1900 C-5 6 Nov 1995 6608S 06123E 12x06 250The 'A', 'B' (and other alphabetic characters can occur) denote that these are elements of the same original iceberg. B-9 originally contained both B-9A and B-9B (as well as significant area which has already fragmented in to pieces too small to track in the analysis) so the original size was over 4450 km^2. B10 was originally over 6600 km^2. A-32 is the iceberg which broke off the Larsen ice shelf in January- February 1995. While the Larsen berg was large, there were already several larger bergs in the Antarctic.
Country, State, Lake, and City sizes are from the 1988 Information Please Almanac. Please do send your additions for places/areas in the range of 100 to 10000 square kilometers (40 to 4000 square miles).
Return to Sea Ice Home Page