The changing mass of the Antarctic Ice Sheet during ENSO-dominated periods in the GRACE era (2002–2022)

Ayabilah, John Bright; King, Matt; Udy, Danielle; Vance, Tessa

doi:10.5194/tc-20-1237-2026

Articles | Volume 20, issue 2

https://doi.org/10.5194/tc-20-1237-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-20-1237-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 2

Research article

|

17 Feb 2026

Research article |

| 17 Feb 2026

The changing mass of the Antarctic Ice Sheet during ENSO-dominated periods in the GRACE era (2002–2022)

John Bright Ayabilah, Matt King, Danielle Udy, and Tessa Vance

Supplement

https://doi.org/10.5194/tc-20-1237-2026-supplement

Data sets

Monthly RACMO2.4p1 data for Antarctica (11 km) for SMB, SEB and near-surface variables (1979-2023) C. van Dalum et al. https://doi.org/10.5281/zenodo.14217232

Data for: The changing mass of the Antarctic Ice Sheet during ENSO-dominated periods in the GRACE era (2002-2022) J. B. Ayabilah et al. https://doi.org/10.25959/K9BK-VA85

Short summary

Large-scale climate modes significantly influence Antarctic Ice Sheet (AIS) mass variability. This study investigates AIS variability during different El Niño-Southern Oscillation (ENSO) periods using GRACE data (2002–2022). Results show strong spatial variability driven by changes in the Amundsen Sea Low (ASL) and Southern Annular Mode (SAM). This highlights the importance of understanding these patterns for future ice mass estimates and sea level rise predictions.