Centre for Polar Observation and Modelling

Year-Round High-Resolution Sea Ice Freeboard Retrieval Using ICESat-2 ATL03 Photon Data

Abstract. Arctic sea ice freeboard is critical for estimating ice thickness and characterizing surface morphology, yet it remains poorly constrained, especially during the melt season due to limitations in conventional altimetry products. The ICESat-2 ATL07 product retrieves surf...

Optimizing Gaussian process emulation and generalized additive model fitting for rapid, reproducible earth system model analysis

Abstract. Causes of model uncertainty in complex modeling systems can be identified using large perturbed-parameter ensembles (PPEs), combined with statistical emulators to increase sample size and enable variance-based sensitivity analyses and observational constraint. In global...