The Cryosphere
The Cryosphere
TC
Articles | Volume 16, issue 7
Articles | Volume 16, issue 7
The Cryosphere, 16, 2671–2681, 2022
https://doi.org/10.5194/tc-16-2671-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
The Cryosphere, 16, 2671–2681, 2022
https://doi.org/10.5194/tc-16-2671-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 7
Research article
08 Jul 2022
Research article | 08 Jul 2022

Filling and drainage of a subglacial lake beneath the Flade Isblink ice cap, northeast Greenland

Qi Liang et al.

Data sets

ArcticDEM Claire Porter, Paul Morin, Ian Howat, Myoung-Jon Noh, Brian Bates, Kenneth Peterman, Scott Keesey, Matthew Schlenk, Judith Gardiner, Karen Tomko, Michael Willis, Cole Kelleher, Michael Cloutier, Eric Husby, Steven Foga, Hitomi Nakamura, Melisa Platson, Michael Wethington Jr., Cathleen Williamson, Gregory Bauer, Jeremy Enos, Galen Arnold, William Kramer, Peter Becker, Abhijit Doshi, Cristelle D'Souza, Pat Cummens, Fabien Laurier, and Mikkel Bojesen https://doi.org/10.7910/DVN/OHHUKH

ATLAS/ICESat-2 L3A Land Ice Height B. Smith, S. Adusumilli, B. M. Csathó, D. Felikson, H. A. Fricker, A. Gardner, N. Holschuh, J. Lee, J. Nilsson, F. S. Paolo, M. R. Siegfried, T. Sutterley, and the ICESat-2 Science Team https://doi.org/10.5067/ATLAS/ATL06.005

MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat I. Joughin https://doi.org/10.5067/YDLH5QG02XKC

Precise Global DEM Generation by ALOS PRISM (https://www.eorc.jaxa.jp/ALOS/en/dataset/aw3d30/aw3d30_e.htm) T. Tadono, H. Ishida, F. Oda, S. Naito, K. Minakawa, and H. Iwamoto https://doi.org/10.5194/isprsannals-II-4-71-2014

Generation of High Resolution Global DSM from ALOS PRISM (https://www.eorc.jaxa.jp/ALOS/en/dataset/aw3d30/aw3d30_e.htm) J. Takaku, T. Tadono, and K. Tsutsui https://doi.org/10.5194/isprsarchives-XL-4-243-2014

UPDATES OF "AW3D30" ALOS GLOBAL DIGITAL SURFACE MODEL WITH OTHER OPEN ACCESS DATASETS (https://www.eorc.jaxa.jp/ALOS/en/dataset/aw3d30/aw3d30_e.htm) J. Takaku, T. Tadono, M. Doutsu, F. Ohgushi, and H. Kai https://doi.org/10.5194/isprs-archives-XLIII-B4-2020-183-2020

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Short summary
Using multi-temporal ArcticDEM and ICESat-2 altimetry data, we document changes in surface elevation of a subglacial lake basin from 2012 to 2021. The long-term measurements show that the subglacial lake was recharged by surface meltwater and that a rapid drainage event in late August 2019 induced an abrupt ice velocity change. Multiple factors regulate the episodic filling and drainage of the lake. Our study also reveals ~ 64 % of the surface meltwater successfully descended to the bed.
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