Surface and cloud radiative feedbacks on the Greenland Ice Sheet

This repository contains the code and data references for the article:

Ryan, J. C. (2025). Contribution of surface and cloud radiative feedbacks to Greenland Ice Sheet meltwater production during 2002-2023, 5, 538, https://doi.org/10.1038/s43247-024-01714-y

🧊 Summary

In this study, we constrain the amount of melt due to processes that lower surface albedo and reduce cloud cover by developing a reference system approach that can be applied to satellite measurements of surface albedo and downward atmospheric radiative fluxes. Our findings provide a benchmark for assessing surface radiative feedbacks in state-of-the-art ice sheet models used to forecast Greenland's contribution to global sea levels in the next century and beyond.

🗂 Repository structure

feedbacks/
├── 01-pre-process
├── 02-analysis
├── 03-uncertainty	
├── 04-figures
├── LICENSE
└── README.md

📌 Data availability

Data required to reproduce the findings of this study are available on Zenodo.

Figures

Summer ice sheet radiative forcing by different processes for the 2002−2023 study period.

Summer ice sheet radiative forcing due to surface albedo by elevation.

Radiative feedback between summer near-surface (2 m) air temperatures and surface albedo by elevation.

Summer radiative forcing and feedback (at the surface) due to clouds by elevation.

Acknowledgments

This research was supported by NASA award #80NSSC21K1973.