Articles | Volume 15, issue 8
https://doi.org/10.5194/tc-15-3861-2021
https://doi.org/10.5194/tc-15-3861-2021
Research article
 | 
19 Aug 2021
Research article |  | 19 Aug 2021

Tracking changes in the area, thickness, and volume of the Thwaites tabular iceberg “B30” using satellite altimetry and imagery

Anne Braakmann-Folgmann, Andrew Shepherd, and Andy Ridout

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Cited articles

American Meteorological Society: Tabular iceberg, Gloss. Meterology, available at: https://glossary.ametsoc.org/wiki/Tabular_iceberg (last access: 8 June 2021), 2012. 
Arrigo, K. R., Van Dijken, G. L., Ainley, D. G., Fahnestock, M. A., and Markus, T.: Ecological impact of a large Antarctic iceberg, Geophys. Res. Lett., 29, 8-1–8-4, https://doi.org/10.1029/2001GL014160, 2002. 
Barnes, D. K. A.: Iceberg killing fields limit huge potential for benthic blue carbon in Antarctic shallows, Glob. Change Biol., 23, 2649–2659, https://doi.org/10.1111/gcb.13523, 2017. 
Biddle, L. C., Kaiser, J., Heywood, K. J., Thompson, A. F., and Jenkins, A.: Ocean glider observations of iceberg-enhanced biological production in the northwestern Weddell Sea, Geophys. Res. Lett., 42, 459–465, https://doi.org/10.1002/2014GL062850, 2015. 
Bigg, G. R., Wadley, M. R., Stevens, D. P., and Johnson, J. A.: Modelling the dynamics and thermodynamics of icebergs, Cold Reg. Sci. Technol., 26, 113–135, https://doi.org/10.1016/S0165-232X(97)00012-8, 1997. 
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Short summary
We investigate the disintegration of the B30 iceberg using satellite remote sensing and find that the iceberg lost 378 km3 of ice in 6.5 years, corresponding to 80 % of its initial volume. About two thirds are due to fragmentation at the sides, and one third is due to melting at the iceberg’s base. The release of fresh water and nutrients impacts ocean circulation, sea ice formation, and biological production. We show that adding a snow layer is important when deriving iceberg thickness.
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