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One of the most studied ice shelves in Antarctica has recently seen big changes. While the calving process is a normal part of an ice shelf’s lifecycle, recent rifting and iceberg calving may mean that the Brunt Ice Shelf is in a period of instability. It could also be an indicator of the future of other ice shelves in this region.

Landsat satellites have watched the ice shelf for nearly five decades. In 1971, a calving event reduced its extent. This occurred just before the first Landsat launched in 1972, so the earliest Landsat observations of Brunt came during the Antarctic summer of 1972–1973.

And now, Landsat 9 has joined Landsat 8 in observing the changing rifts on the ice shelf.

Feb. 17, 2022, Landsat 9 (path/row 184/113,114) — Brunt Ice Shelf, Antarctica

 

 

 

 

 

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Jan. 27, 1973, Landsat 1 (path/row 195/114) — Brunt Ice Shelf, Antarctica
Jan. 30, 1986, Landsat 5 (path/row 183/114) — Brunt Ice Shelf, Antarctica
Dec. 13, 2002, Landsat 7 (path/row 182/114) — Brunt Ice Shelf, Antarctica
Feb. 13, 2009, Landsat 7 (path/row 184/114) — Brunt Ice Shelf, Antarctica
Dec. 1, 2013, Landsat 8 (path/row 184/114) — Brunt Ice Shelf, Antarctica
Dec. 25, 2021, Landsat 8 (path/row 182/114) — Brunt Ice Shelf, Antarctica
Feb. 8, 2022, Landsat 9 (path/row 185/114) — Brunt Ice Shelf, Antarctica

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References (Earthshot Overview/Parent Only)

British Antarctic Survey, 2021, Brunt Ice Shelf in Antarctica Calves: British Antarctic Survey web page, accessed January 7, 2022, at https://www.bas.ac.uk/media-post/brunt-ice-shelf-in-antarctica-calves/.

British Antarctic Survey, [n.d.], Brunt Ice Shelf Movement: British Antarctic Survey web page, accessed January 7, 2022, at https://www.bas.ac.uk/project/brunt-ice-shelf-movement/.

Cheng, Y., Xia, M., Qiao, G., Lv, D., Li, Y., and Hai, G., 2021, Imminent calving accelerated by increased instability of the Brunt Ice Shelf, in response to climate warming: Earth and Planetary Science Letters, v. 572, https://doi.org/10.1016/j.epsl.2021.117132.

De Rydt, J., Gudmundsson, G.H., Nagler, T., Wuite, J., and King, E.C., 2018, Recent rift formation and impact on the structural integrity of the Brunt Ice Shelf, East Antarctica: The Cryosphere, v. 12, no. 2, p. 505–520, https://doi.org/10.5194/tc-12-505-2018.

De Rydt, J., Gudmundsson, G.H., Nagler, T., and Wuite, J., 2019, Calving cycle of the Brunt Ice Shelf, Antarctica, driven by changes in ice shelf geometry: The Cryopshere, v. 13, p. 2771–2787, https://doi.org/10.5194/tc-13-2771-2019.

European Space Agency, 2021, A-74 iceberg near collision with Brunt Ice Shelf: ESA, accessed January 7, 2022, at https://www.esa.int/ESA_Multimedia/Images/2021/08/A-74_iceberg_near_collision_with_Brunt_Ice_Shelf.

Gudmundsson, G.H., De Rydt, J., and Nagler, T., 2017, Five decades of strong temporal variability in the flow of Brunt Ice Shelf, Antarctica: Journal of Glaciology, v. 63, no. 237, p. 164–175, https://doi.org/10.1017/jog.2016.132.

Hansen, K., 2019, Countdown to Calving at Brunt Ice Shelf: NASA Earth Observatory, accessed January 7, 2022, at https://earthobservatory.nasa.gov/images/144563/countdown-to-calving-at-brunt-ice-shelf.

Hansen, K., 2021, Brunt Breaking Up with Antarctica this Year? NASA Earth Observatory, accessed January 7, 2022, at https://earthobservatory.nasa.gov/images/147799/brunt-breaking-up-with-antarctica-this-year.

Hansen, K., 2021, Breakup at Brunt: NASA Earth Observatory, accessed January 7, 2022, at https://earthobservatory.nasa.gov/images/148009/breakup-at-brunt.

Hodgson, D.A., Jordan, T.A., De Rydt, J., Fretwell, P.T., Seddon, S.A., Becker, D., Hogan, K.A., Smith, A.M., and Vaughan, D.G., 2019, Past and future dynamics of the Brunt Ice Shelf from seabed bathymetry and ice shelf geometry: The Cryophere, v. 13, p. 545–556, https://doi.org/10.5194/tc-13-545-2019.

Matsuoka, K., Hindmarsh, R.C.A., Moholdt, G., Bentley, M.J., Pritchard, H.D., Brown, J., Conway, H., Drews, R., Durand, G., Goldberg, D., Hattermann, T., Kingslake, J., Lenaerts, J.T.M., Martín, C., Mulvaney, R., Nicholls, K.W., Pattyn, F., Ross, N., Scambos, T., and Whitehouse, P.L., 2015, Antarctic ice rises and rumples—Their properties and significance for ice-sheet dynamics and evolution: Earth-Science Reviews, v. 150, p. 724–745,  https://doi.org/10.1016/j.earscirev.2015.09.004.

Metcalfe, T., 2017, Antarctic Science Lab On the Move to Escape Breaking Ice: Live Science, accessed January 7, 2022, at https://www.livescience.com/57440-antarctica-research-lab-relocated.html.

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