The structural glaciology of southwest Antarctic Peninsula Ice Shelves (ca. 2010)

Figures & data

Figure 1. Location of Bach, George VI and Stange Ice Shelves in the Antarctic Peninsula. Wilkins Ice Shelf is not considered in this study, and the reader is directed to Braun et al. (2009) for a thorough structural interpretation. Insert: MODIS Image Mosaic of Antarctic (Haran et al., 2005).

Table 1. List of Landsat scenes used for structural mapping.

Ice Shelf	Scene ID	Date (dd/mm/yyyy)	Path	Row	Scene Centre
					Lat. (°)	Long. (°)
Bach	L71218111_11120091110	10/11/2009	218	111	−71.63	−72.22
	L71219111_11120110123	23/01/2011	219	111	−73.00	−72.24
George VI	L72218110_11020090211	11/02/2009	218	110	−70.95	−69.38
	L72218109_10920091110	10/11/2009	218	109	−69.64	−67.51
	L72217110_11220100106	06/01/2010	217	112	−67.94	−70.87
	L72217112_11220100106	06/01/2010	217	112	−73.46	−72.42
	L71218111_11120100113	13/01/2010	218	111	−71.56	−72.17
	L71216111_11120100115	15/01/2010	216	111	−72.19	−68.58
	L72216112_11220100115	15/01/2010	216	112	−73.49	−71.06
	L72218109_10920100129	29/01/2010	218	109	−69.64	−67.49
	L72218110_11020100129	29/01/2010	218	110	−70.82	−69.49
	L72218111_11120100129	29/01/2010	218	111	−73.49	−74.16
	L72216112_11220101201	01/12/2010	216	112	−73.52	−71.10
	L72218112_11220120307	07/03/2012	218	112	−73.99	−73.45
Stange	L72221112_11220091115	15/11/2009	212	112	−77.12	−73.30
	L72220112_11220110114	14/11/2011	220	112	−76.97	−73.40
	L72219112_11220110208	08/02/2011	219	112	−77.08	−73.42

Figure 2. Feature identification in Landsat ETM+ Panchromatic Band 8 as discussed in the main text. (A) An ice front and adjacent sea ice, (B) the grounding line/ break of slope, (C) longitudinal structures (flowlines), (D) pressure ridges (also termed pressure rollers), (E) crevassing on grounded ice, (F) fractures emanating from the grounding line, (G) rifts filled with ice melange, (H) fracture traces (healed fractures), (I) surface meltwater on George VI Ice Shelf, (J) ice dolines, (K) an ice rise and ice rumple.

Braun , M. , Humbert , A. and Moll , A. 2009 . Changes of Wilkins Ice Shelf over the past 15 years and inferences on its stability . The Cryosphere , 3 : 41 – 56 . doi: 10.5194/tc-3-41-2009

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Haran , T. , Bohlander , J. , Scambos , T. , Painter , T. and Fahnestock , M. 2005 . MODIS Mosaic of Antarctica (MOA) Image Map , Boulder Colorado USA : National Snow and Ice Data Centre .

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