Articles | Volume 16, issue 2
https://doi.org/10.5194/tc-16-737-2022
https://doi.org/10.5194/tc-16-737-2022
Research article
 | 
03 Mar 2022
Research article |  | 03 Mar 2022

Overestimation and adjustment of Antarctic ice flow velocity fields reconstructed from historical satellite imagery

Rongxing Li, Yuan Cheng, Haotian Cui, Menglian Xia, Xiaohan Yuan, Zhen Li, Shulei Luo, and Gang Qiao

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Cited articles

Altena, B. and Kääb, A.: Weekly Glacier Flow Estimation from Dense Satellite Time Series Using Adapted Optical Flow Technology, Front. Earth. Sci., 5, 53, https://doi.org/10.3389/feart.2017.00053, 2017. 
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Berthier, E., Raup, B., and Scambos, T.: New velocity map and mass-balance estimate of Mertz Glacier, East Antarctica, derived from Landsat sequential imagery, J. Glaciol., 49, 503–511, https://doi.org/10.3189/172756503781830377, 2003. 
Bindschadler, R., Vornberger, P., Blankenship, D., Scambos, T., and Jacobel, R.: Surface velocity and mass balance of Ice Streams D and E, West Antarctica, J. Glaciol., 42, 461–475, https://doi.org/10.3189/S0022143000003452, 1996. 
Bindschadler, R., Vornberger, P., Fleming, A., Fox, A., Mullins, J., Binnie, D., Paulsen, S. J., Granneman, B., and Gorodetzky, D.: The Landsat Image Mosaic of Antarctica, Remote Sens. Environ., 112, 4214–4226, https://doi.org/10.1016/j.rse.2008.07.006, 2008. 
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Short summary
Historical velocity maps of the Antarctic ice sheet are valuable for long-term ice flow dynamics analysis. We developed an innovative method for correcting overestimations existing in historical velocity maps. The method is validated rigorously using high-quality Landsat 8 images and then successfully applied to historical velocity maps. The historical change signatures are preserved and can be used for assessing the impact of long-term global climate changes on the ice sheet.
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