Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland. / Maier, Nathan; Andersen, Jonas Kvist; Mouginot, Jeremie; Gimbert, Florent; Gagliardini, Olivier.

In: Geophysical Research Letters, Vol. 50, No. 4, e2022GL102251, 2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Maier, N, Andersen, JK, Mouginot, J, Gimbert, F & Gagliardini, O 2023, 'Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland', Geophysical Research Letters, vol. 50, no. 4, e2022GL102251. https://doi.org/10.1029/2022GL102251

APA

Maier, N., Andersen, J. K., Mouginot, J., Gimbert, F., & Gagliardini, O. (2023). Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland. Geophysical Research Letters, 50(4), [ e2022GL102251]. https://doi.org/10.1029/2022GL102251

Vancouver

Maier N, Andersen JK, Mouginot J, Gimbert F, Gagliardini O. Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland. Geophysical Research Letters. 2023;50(4). e2022GL102251. https://doi.org/10.1029/2022GL102251

Author

Maier, Nathan ; Andersen, Jonas Kvist ; Mouginot, Jeremie ; Gimbert, Florent ; Gagliardini, Olivier. / Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland. In: Geophysical Research Letters. 2023 ; Vol. 50, No. 4.

Bibtex

@article{3c2ef367cf97402b9197d3d3125e42fa,
title = "Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland",
abstract = "Surface melt forces summertime ice-flow accelerations on glaciers and ice sheets. Here, we show that large meltwater-forced accelerations also occur during wintertime in Greenland. We document supraglacial lakes (SGLs) draining in cascades at unusually high elevation, causing an expansive flow acceleration over a similar to 5,200 km(2) region during winter. The three-component interferometric surface velocity field and decomposition modeling reveal the underlying flood propagation with unprecedented detail as it traveled over 160 km from the drainage site to the margin, providing novel constraints on subglacial water pathways, drainage morphology, and links with basal sliding. The triggering SGLs continuously grew over 40 years and suddenly released decades of stored meltwater, demonstrating surface melting can impact dynamics well beyond melt production. We show these events are likely common and thus their cumulative impact on dynamics should be further evaluated.",
author = "Nathan Maier and Andersen, {Jonas Kvist} and Jeremie Mouginot and Florent Gimbert and Olivier Gagliardini",
year = "2023",
doi = "10.1029/2022GL102251",
language = "English",
volume = "50",
journal = "Geophysical Research Letters (Online)",
issn = "1944-8007",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Wintertime Supraglacial Lake Drainage Cascade Triggers Large-Scale Ice Flow Response in Greenland

AU - Maier, Nathan

AU - Andersen, Jonas Kvist

AU - Mouginot, Jeremie

AU - Gimbert, Florent

AU - Gagliardini, Olivier

PY - 2023

Y1 - 2023

N2 - Surface melt forces summertime ice-flow accelerations on glaciers and ice sheets. Here, we show that large meltwater-forced accelerations also occur during wintertime in Greenland. We document supraglacial lakes (SGLs) draining in cascades at unusually high elevation, causing an expansive flow acceleration over a similar to 5,200 km(2) region during winter. The three-component interferometric surface velocity field and decomposition modeling reveal the underlying flood propagation with unprecedented detail as it traveled over 160 km from the drainage site to the margin, providing novel constraints on subglacial water pathways, drainage morphology, and links with basal sliding. The triggering SGLs continuously grew over 40 years and suddenly released decades of stored meltwater, demonstrating surface melting can impact dynamics well beyond melt production. We show these events are likely common and thus their cumulative impact on dynamics should be further evaluated.

AB - Surface melt forces summertime ice-flow accelerations on glaciers and ice sheets. Here, we show that large meltwater-forced accelerations also occur during wintertime in Greenland. We document supraglacial lakes (SGLs) draining in cascades at unusually high elevation, causing an expansive flow acceleration over a similar to 5,200 km(2) region during winter. The three-component interferometric surface velocity field and decomposition modeling reveal the underlying flood propagation with unprecedented detail as it traveled over 160 km from the drainage site to the margin, providing novel constraints on subglacial water pathways, drainage morphology, and links with basal sliding. The triggering SGLs continuously grew over 40 years and suddenly released decades of stored meltwater, demonstrating surface melting can impact dynamics well beyond melt production. We show these events are likely common and thus their cumulative impact on dynamics should be further evaluated.

U2 - 10.1029/2022GL102251

DO - 10.1029/2022GL102251

M3 - Journal article

VL - 50

JO - Geophysical Research Letters (Online)

JF - Geophysical Research Letters (Online)

SN - 1944-8007

IS - 4

M1 - e2022GL102251

ER -

ID: 356885806